Climate - Mazatlán (Sinaloa)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Mazatlán
The climate of Mazatlán is sub-tropical, with a quite warm winter from December to February, and a hot summer from May to November, within which there is a rainy and muggy period from July to mid-October.
The city is located on the coast, in the state of Sinaloa, at the Tropic of Cancer, more or less at the latitude of Cabo San Lucas (i.e. the southernmost part of Baja California).
In winter, every now and then, a mass of cold air from the United States can bring some cold at night. In February 2011, the minimum temperature dropped to 2 °C (35.5 °F).
On the hottest days, from June to October, the temperature can reach 35 °C (95 °F).
In theory, Mazatlán can be affected by hurricanes of the Pacific Ocean from June to November, however, they generally pass further west, along the California Peninsula; moreover, historically they never occurred in November. As a result, the city was hit very rarely: by Hurricane Mazatlán in October 1943, by Hurricane Olivia in October 1975, and by Hurricane 12 in October 1957.
The average temperature of the coldest month (January) is of 19.8 °C (68 °F), that of the warmest month (August) is of 28.5 °C (83.3 °F). Here are the average temperatures.
Mazatlán - Average temperatures (1991-2020) Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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January | 12.6 | 27 | 19.8 | 55 | 81 | 67.6 |
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February | 12.8 | 27 | 19.9 | 55 | 81 | 67.8 |
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March | 13 | 27.6 | 20.3 | 55 | 82 | 68.5 |
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April | 14.8 | 28.9 | 21.8 | 59 | 84 | 71.3 |
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May | 18.4 | 30.6 | 24.5 | 65 | 87 | 76.1 |
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June | 23.9 | 32 | 27.9 | 75 | 90 | 82.2 |
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July | 24.6 | 32.3 | 28.5 | 76 | 90 | 83.2 |
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August | 24.6 | 32 | 28.3 | 76 | 90 | 83 |
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September | 24.4 | 31.4 | 27.9 | 76 | 89 | 82.3 |
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October | 22.5 | 31.6 | 27 | 72 | 89 | 80.6 |
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November | 18 | 30 | 24 | 64 | 86 | 75.2 |
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December | 14.1 | 27.4 | 20.8 | 57 | 81 | 69.4 |
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Year | 18.7 | 29.8 | 24.2 | 65.6 | 85.7 | 75.5 |
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Precipitation amounts to 845 millimeters (33.3 inches) per year: so, it is at an intermediate level. It ranges from 0 mm (0 in) in the driest month (April) to 255 mm (10 in) in the wettest (August). Here is the average precipitation.
Mazatlán - Average precipitationMonth | Millimeters | Inches | Days |
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January | 10 | 0.4 | 2 |
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February | 10 | 0.4 | 1 |
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March | 5 | 0.2 | 1 |
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April | 0 | 0 | 1 |
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May | 10 | 0.4 | 0 |
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June | 35 | 1.4 | 2 |
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July | 195 | 7.7 | 10 |
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August | 255 | 10 | 11 |
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September | 200 | 7.9 | 11 |
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October | 80 | 3.1 | 4 |
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November | 25 | 1 | 2 |
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December | 20 | 0.8 | 2 |
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Year | 845 | 33.3 | 46 |
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On average, there are around 2,890 sunshine hours per year. Here are the average sunshine hours per day.
Mazatlán - Sunshine hoursMonth | Average | Total |
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January | 7 | 215 | February | 8 | 225 | March | 8.5 | 255 | April | 8.5 | 255 | May | 9.5 | 295 | June | 9 | 270 | July | 7 | 225 | August | 7.5 | 235 | September | 7 | 215 | October | 8 | 250 | November | 8 | 240 | December | 6.5 | 205 | Year | 7.9 | 2890 |
The sea temperature ranges between 22.5 °C (72.5 °F) and 30 °C (86 °F). The sea is pleasantly warm from June to November, while from January to March, it is a bit cool but all in all acceptable for swimming. Here are the average sea temperatures.
Mazatlán - Sea temperatureMonth | Celsius (°C) | Fahrenheit (°F) |
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January | 23 | 73 | February | 22.5 | 72 | March | 22.5 | 73 | April | 24 | 75 | May | 26 | 79 | June | 28.5 | 83 | July | 29.5 | 85 | August | 30 | 86 | September | 30 | 86 | October | 29.5 | 85 | November | 27.5 | 81 | December | 24.5 | 76 | Year | 26.5 | 79.7 |
Best Time
Mazatlán can be visited from December to March, as it is the mildest season. During the day you can enjoy the sun, while in the evening you will need a sweatshirt and a light jacket.
For a beach holiday you may prefer May and November.
Mazatlán - Weather by month
Based on the period 1991-2020
In January, the coldest month of the year, the weather in Mazatlán is usually warm. However, there are remarkable differences between night and day. The average temperature is of 19.8 °C (68 °F), with a minimum of 12.6 °C (54.7 °F) and a maximum of 27 °C (80.5 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47 °F).
On the warmest days of the month, the temperature usually reaches around 30.5 °C (87 °F).
Precipitation amounts to 10 mm (0.4 in), distributed over 2 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 68%.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 23 °C (73 °F). Therefore, the sea can be considered barely acceptable for swimming.
In February, the weather in Mazatlán is usually warm. However, there are remarkable differences between night and day. The average temperature is of 19.9 °C (68 °F), with a minimum of 12.8 °C (55 °F) and a maximum of 27 °C (80.6 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47 °F).
On the warmest days of the month, the temperature usually reaches around 30.5 °C (87 °F).
Precipitation amounts to 10 mm (0.4 in), and all occurs in one day.
The day lasts on average 11 hours and 25 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 66%.
The average wind speed is 9 kph (6 mph).
The average sea temperature is of 22.5 °C (72.5 °F). Therefore, the sea can be considered barely acceptable for swimming.
In March, the weather in Mazatlán is usually warm. However, there are remarkable differences between night and day. The average temperature is of 20.3 °C (69 °F), with a minimum of 13 °C (55.4 °F) and a maximum of 27.6 °C (81.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 9 °C (48 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (89 °F).
Precipitation amounts to only 5 mm (0.2 in), and all occurs in one day.
The day lasts on average 12 hours and 5 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 63%.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 22.5 °C (72.5 °F). Therefore, the sea can be considered barely acceptable for swimming.
In April, the weather in Mazatlán is usually warm. However, there are remarkable differences between night and day. The average temperature is of 21.8 °C (71 °F), with a minimum of 14.8 °C (58.6 °F) and a maximum of 28.9 °C (83.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 11 °C (51.5 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 32.5 °C (90.5 °F).
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 12 hours and 40 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 62%.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 24 °C (75 °F). Therefore, the sea is warm enough for swimming.
In May, the weather in Mazatlán is usually warm to hot. The average temperature is of 24.5 °C (76 °F), with a minimum of 18.4 °C (65.2 °F) and a maximum of 30.6 °C (87 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 13.5 °C (56.5 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 33.5 °C (92 °F).
Precipitation amounts to 10 mm (0.4 in), distributed over 0 days.
The day lasts on average 13 hours and 20 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 64%.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 26 °C (79 °F). Therefore, the sea is warm enough for swimming.
In June, the weather in Mazatlán is usually very hot. The average temperature is of 27.9 °C (82 °F), with a minimum of 23.9 °C (74.9 °F) and a maximum of 32 °C (89.5 °F).
On the coldest nights, the temperature usually drops to around 20.5 °C (68.5 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 35 mm (1.4 in), distributed over 2 days.
The day lasts on average 13 hours and 30 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 65%.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 28.5 °C (83 °F). Therefore, the sea is pleasantly warm and allows long swims.
In July, the hottest month of the year, the weather in Mazatlán is usually very hot and muggy. The average temperature is of 28.5 °C (83 °F), with a minimum of 24.6 °C (76.4 °F) and a maximum of 32.3 °C (90.1 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 195 mm (7.7 in), distributed over 10 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 29.5 °C (85.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
In August, the weather in Mazatlán is usually very hot and muggy. The average temperature is of 28.3 °C (83 °F), with a minimum of 24.6 °C (76.3 °F) and a maximum of 32 °C (89.7 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F).
Precipitation amounts to 255 mm (10 in), distributed over 11 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 9 kph (5 mph).
The average sea temperature is of 30 °C (86 °F). Therefore, the sea is pleasantly warm and allows long swims.
In September, the weather in Mazatlán is usually very hot and muggy. The average temperature is of 27.9 °C (82 °F), with a minimum of 24.4 °C (76 °F) and a maximum of 31.4 °C (88.5 °F).
On the coldest nights, the temperature usually drops to around 22 °C (72 °F).
On the warmest days, the temperature usually reaches around 34 °C (93 °F).
Precipitation amounts to 200 mm (7.9 in), distributed over 11 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 30 °C (86 °F). Therefore, the sea is pleasantly warm and allows long swims.
In October, the weather in Mazatlán is usually warm to hot and muggy. The average temperature is of 27.0 °C (81 °F), with a minimum of 22.5 °C (72.5 °F) and a maximum of 31.6 °C (88.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 18.5 °C (65 °F).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 34 °C (93 °F).
Precipitation amounts to 80 mm (3.1 in), distributed over 4 days.
The day lasts on average 11 hours and 35 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 29.5 °C (85 °F). Therefore, the sea is pleasantly warm and allows long swims.
In November, the weather in Mazatlán is usually warm to hot and muggy. The average temperature is of 24.0 °C (75 °F), with a minimum of 18 °C (64.3 °F) and a maximum of 30 °C (86 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 13.5 °C (56 °F).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 33 °C (91.5 °F).
Precipitation amounts to 25 mm (1 in), distributed over 2 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 27.5 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.
In December, the weather in Mazatlán is usually warm. However, there are remarkable differences between night and day. The average temperature is of 20.8 °C (69 °F), with a minimum of 14.1 °C (57.4 °F) and a maximum of 27.4 °C (81.4 °F).
On the coldest nights of the month, the temperature usually drops to around 9 °C (48.5 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (88.5 °F).
Precipitation amounts to 20 mm (0.8 in), distributed over 2 days.
The day lasts on average 10 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 6.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 24.5 °C (76.5 °F). Therefore, the sea is warm enough for swimming.
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