Average weather, temperature, rainfall, sunshine hours
The climate of Tres Arroyos is
temperate oceanic (according to the Köppen classification, oceanic climate - Cfb, although it is close to the humid subtropical climate - Cfa, since the average of the warmest month is close to 22 °C or 71.5 °F).
However, throughout the year, there can be
temperature fluctuations.
Winter, from June to August, is quite mild, however, it can get cold at night. Sometimes fog can form. During cold spells, the temperature can drop several degrees below freezing, at least at night. The record is -10 °C (14 °F), set in July 1988. However, snow is rare.
Summer, from December to February, is warm, but with cool nights, and quite frequent thunderstorms. There can be heat waves, during which the temperature can reach 38/40 °C (100/104 °F). The record is 41.8 °C (107.2 °F), set in January 2022. On other occasions, it can get very cool, or even a little cold, at night.
Tres Arroyos is a city of 47,000 inhabitants located in Argentina, at 38 degrees south latitude, in the province of Buenos Aires, and 55 km (35 mi) from the coast.
Tres Arroyos - Climate data
In Tres Arroyos, the
average temperature of the coldest month (July) is of 7.9 °C (46.2 °F), that of the warmest month (January) is of 22.3 °C (72.1 °F). Here are the average temperatures.
Tres Arroyos - Average temperatures (1991-2020) Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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January | 15.2 | 29.4 | 22.3 | 59 | 85 | 72.1 |
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February | 14.6 | 27.9 | 21.2 | 58 | 82 | 70.2 |
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March | 13.1 | 25.4 | 19.2 | 56 | 78 | 66.6 |
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April | 9.4 | 20.9 | 15.2 | 49 | 70 | 59.3 |
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May | 6.8 | 16.8 | 11.8 | 44 | 62 | 53.2 |
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June | 4 | 13.5 | 8.8 | 39 | 56 | 47.8 |
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July | 3.1 | 12.7 | 7.9 | 38 | 55 | 46.2 |
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August | 4.3 | 15.2 | 9.8 | 40 | 59 | 49.6 |
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September | 5.6 | 17.3 | 11.4 | 42 | 63 | 52.6 |
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October | 8.3 | 20.3 | 14.3 | 47 | 69 | 57.7 |
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November | 10.9 | 24.1 | 17.5 | 52 | 75 | 63.5 |
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December | 13.6 | 28 | 20.8 | 56 | 82 | 69.4 |
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Year | 9 | 20.9 | 14.95 | 48.3 | 69.7 | 59 |
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Precipitation amounts to 830 millimeters (32.7 inches) per year: so, it is at an intermediate level. It ranges from 42.7 mm (1.7 in) in the driest month (July) to 106.5 mm (4.2 in) in the wettest one (February). Here is the average precipitation.
Tres Arroyos - Average precipitationMonth | Millimeters | Inches | Days |
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January | 80 | 3.1 | 7 |
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February | 106 | 4.2 | 7 |
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March | 80 | 3.1 | 7 |
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April | 73 | 2.9 | 6 |
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May | 52 | 2.1 | 6 |
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June | 44 | 1.7 | 5 |
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July | 43 | 1.7 | 5 |
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August | 46 | 1.8 | 5 |
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September | 56 | 2.2 | 6 |
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October | 82 | 3.2 | 7 |
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November | 91 | 3.6 | 7 |
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December | 78 | 3.1 | 7 |
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Year | 830 | 32.8 | 74 |
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There are on average around 2340
sunshine hours per year. Here are the average hours of sunshine per day.
Tres Arroyos - Sunshine hoursMonth | Average | Total |
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January | 9 | 285 | February | 8.5 | 245 | March | 7 | 215 | April | 6 | 175 | May | 4.5 | 135 | June | 4 | 120 | July | 4 | 125 | August | 4.5 | 145 | September | 5.5 | 170 | October | 6.5 | 205 | November | 8.5 | 250 | December | 9 | 275 | Year | 6.4 | 2340 |
Tres Arroyos - Weather by month
Based on the period 1991-2020
January, the warmest month of the year, is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 22.3 °C (72 °F), with a minimum of 15.2 °C (59.4 °F) and a maximum of 29.4 °C (84.9 °F).
On the coldest nights of the month, the temperature usually drops to around 7.5 °C (45 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99 °F).
Precipitation amounts to 79.8 mm (3.1 in), distributed over 7 days.
The day lasts on average 14 hours and 25 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 53%.
The average wind speed is 15 kph (9 mph).
February is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 21.2 °C (70 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 27.9 °C (82.2 °F).
On the coldest nights of the month, the temperature usually drops to around 7 °C (44.5 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 106.5 mm (4.2 in), distributed over 7 days.
The day lasts on average 13 hours and 30 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 61%.
The average wind speed is 14 kph (9 mph).
March is generally a warm month. The average temperature is of 19.2 °C (67 °F), with a minimum of 13.1 °C (55.6 °F) and a maximum of 25.4 °C (77.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 5.5 °C (42 °F).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 32 °C (89.5 °F).
Precipitation amounts to 79.8 mm (3.1 in), distributed over 7 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 65%.
The average wind speed is 13 kph (8 mph).
April is generally a very mild month. The average temperature is of 15.2 °C (59 °F), with a minimum of 9.4 °C (48.9 °F) and a maximum of 20.9 °C (69.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 2 °C (35.5 °F).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28.5 °C (83.5 °F).
Precipitation amounts to 73.2 mm (2.9 in), distributed over 6 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 67%.
The average wind speed is 13 kph (8 mph).
May is generally a mild month. The average temperature is of 11.8 °C (53 °F), with a minimum of 6.8 °C (44.2 °F) and a maximum of 16.8 °C (62.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -0.5 °C (30.5 °F).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 24 °C (75.5 °F).
Precipitation amounts to 52.1 mm (2.1 in), distributed over 6 days.
The day lasts on average 10 hours and 0 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
June is generally a mild month. The average temperature is of 8.8 °C (48 °F), with a minimum of 4 °C (39.2 °F) and a maximum of 13.5 °C (56.3 °F).
On the coldest nights, the temperature usually drops to around -3.5 °C (25.5 °F).
On the warmest days, the temperature usually reaches around 19 °C (66.5 °F).
Precipitation amounts to 44 mm (1.7 in), distributed over 5 days.
The day lasts on average 9 hours and 35 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
July, the coldest month of the year, is generally a quite mild month. The average temperature is of 7.9 °C (46 °F), with a minimum of 3.1 °C (37.6 °F) and a maximum of 12.7 °C (54.9 °F).
On the coldest nights of the month, the temperature usually drops to around -4 °C (25 °F).
On the warmest days of the month, the temperature usually reaches around 20.5 °C (69 °F).
Precipitation amounts to 42.7 mm (1.7 in), distributed over 5 days.
The day lasts on average 9 hours and 50 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 14 kph (8 mph).
August is generally a mild month. The average temperature is of 9.8 °C (50 °F), with a minimum of 4.3 °C (39.7 °F) and a maximum of 15.2 °C (59.4 °F).
On the coldest nights of the month, the temperature usually drops to around -3 °C (26.5 °F).
On the warmest days of the month, the temperature usually reaches around 23.5 °C (74.5 °F).
Precipitation amounts to 46.3 mm (1.8 in), distributed over 5 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 67%.
The average wind speed is 14 kph (9 mph).
September is generally a mild month. The average temperature is of 11.4 °C (53 °F), with a minimum of 5.6 °C (42.1 °F) and a maximum of 17.3 °C (63.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1 °C (30 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 25.5 °C (78 °F).
Precipitation amounts to 56.3 mm (2.2 in), distributed over 6 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 64%.
The average wind speed is 14 kph (9 mph).
October is generally a mild month. The average temperature is of 14.3 °C (58 °F), with a minimum of 8.3 °C (46.9 °F) and a maximum of 20.3 °C (68.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 1 °C (33.5 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to 82.1 mm (3.2 in), distributed over 7 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 65%.
The average wind speed is 15 kph (9 mph).
November is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of 17.5 °C (64 °F), with a minimum of 10.9 °C (51.6 °F) and a maximum of 24.1 °C (75.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 3 °C (37.5 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 32.5 °C (90 °F).
Precipitation amounts to 90.7 mm (3.6 in), distributed over 7 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 57%.
The average wind speed is 15 kph (10 mph).
December is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 20.8 °C (69 °F), with a minimum of 13.6 °C (56.5 °F) and a maximum of 28 °C (82.4 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (42.5 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 78.5 mm (3.1 in), distributed over 7 days.
The day lasts on average 14 hours and 50 minutes. So the days are long. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 9 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 53%.
The average wind speed is 16 kph (10 mph).