Weather and climate in Tolanaro (Madagascar)

The climate of Tôlanaro (formerly Fort-Dauphin) is tropical, with a warmer period from December to March and a cooler period from June to September.
The city is located in the extreme southeast of Madagascar. On the east coast of the country, there is no dry season because the south-east trade winds bring rain even in the austral winter. However, the least rainy period is from August to October. Furthermore, in the south of Madagascar, the period from November to March is not characterized by very abundant rains as in the north. Tropical cyclones are also rarer.

Tolanaro - Climate data

The average temperature of the coldest month (July) is of 21.0 °C (69.8 °F), that of the warmest month (January) is of 27.4 °C (81.3 °F). Here are the average temperatures.
Precipitation amounts to 1680 millimeters (66.1 inches) per year: it is therefore abundant. It ranges from 75 mm (3 in) in the driest month (September) to 180 mm (7.1 in) in the wettest one (March). Here is the average precipitation.
The sea temperature ranges from 23 °C (73 °F) in August, September to 27 °C (81 °F) in January, February, March. Here are the average sea temperatures.
There are on average around 2740 sunshine hours per year. Here are the average hours of sunshine per day.

Tolanaro - Weather by month

Based on the period 1991-2020

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January, the hottest month of the year, is generally a warm to hot, muggy month. The average temperature is of 27.4 °C (81 °F), with a minimum of 23.6 °C (74.6 °F) and a maximum of 31.1 °C (88.1 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (69.5 °F). However, it dropped to 18.9 °C (66 °F) in January 1995.
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 160 mm (6.3 in), distributed over 11 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 61% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 20 kph (12 mph).
The average sea temperature is of 27 °C (80.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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February is generally a warm to hot, muggy month. The average temperature is of 27.3 °C (81 °F), with a minimum of 23.6 °C (74.5 °F) and a maximum of 31 °C (87.7 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69.5 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 155 mm (6.1 in), distributed over 12 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 20 kph (12 mph).
The average sea temperature is of 27 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.

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March is generally a warm to hot, muggy month. The average temperature is of 26.8 °C (80 °F), with a minimum of 23.1 °C (73.6 °F) and a maximum of 30.4 °C (86.7 °F).
On the coldest nights, the temperature usually drops to around 20 °C (68 °F). However, it dropped to 17.6 °C (63.7 °F) in March 1991.
On the warmest days, the temperature usually reaches around 33 °C (91.5 °F).
Precipitation amounts to 180 mm (7.1 in), distributed over 12 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 80%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 27 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.

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April is generally a warm to hot, muggy month. The average temperature is of 25.3 °C (78 °F), with a minimum of 21.5 °C (70.7 °F) and a maximum of 29.1 °C (84.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 18 °C (64 °F). However, it dropped to 13 °C (55.4 °F) in April 2005.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 32 °C (89 °F).
Precipitation amounts to 175 mm (6.9 in), distributed over 12 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 17 kph (10 mph).
The average sea temperature is of 26 °C (79 °F). Therefore, the sea is warm enough for swimming.

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May is generally a warm to hot, muggy month. The average temperature is of 23.2 °C (74 °F), with a minimum of 19.2 °C (66.5 °F) and a maximum of 27.4 °C (81.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 15 °C (58.5 °F). However, it dropped to 11.6 °C (52.9 °F) in May 2010.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 30.5 °C (86.5 °F).
Precipitation amounts to 145 mm (5.7 in), distributed over 11 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 66% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 25 °C (77.5 °F). Therefore, the sea is warm enough for swimming.

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June is generally a warm month. The average temperature is of 21.7 °C (71 °F), with a minimum of 17.4 °C (63.4 °F) and a maximum of 26 °C (78.7 °F).
On the coldest nights, the temperature usually drops to around 13 °C (55.5 °F). However, it dropped to 10 °C (50 °F) in June 2010.
On the warmest days, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to 125 mm (4.9 in), distributed over 10 days.
The day lasts on average 10 hours and 35 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 7 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 24 °C (75.5 °F). Therefore, the sea is warm enough for swimming.

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July, the coolest month of the year, is generally a warm month. The average temperature is of 21.0 °C (70 °F), with a minimum of 16.8 °C (62.2 °F) and a maximum of 25.2 °C (77.4 °F).
On the coldest nights of the month, the temperature usually drops to around 12.5 °C (54.5 °F). However, it dropped to 9.4 °C (48.9 °F) in July 1992.
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83 °F).
Precipitation amounts to 150 mm (5.9 in), distributed over 10 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 23.5 °C (74 °F). Therefore, the sea can be considered barely acceptable for swimming.

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August is generally a warm month. The average temperature is of 21.7 °C (71 °F), with a minimum of 17.3 °C (63.1 °F) and a maximum of 26 °C (78.9 °F).
On the coldest nights of the month, the temperature usually drops to around 13 °C (55.5 °F). However, it dropped to 10 °C (50 °F) in August 2020.
On the warmest days of the month, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to 105 mm (4.1 in), distributed over 8 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 23 °C (73.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

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September is generally a warm to hot, muggy month. The average temperature is of 22.8 °C (73 °F), with a minimum of 18.4 °C (65 °F) and a maximum of 27.2 °C (81 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 14 °C (57.5 °F). However, it dropped to 11 °C (51.8 °F) in September 1997.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 30.5 °C (87 °F).
Precipitation amounts to 75 mm (3 in), distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 21 kph (13 mph).
The average sea temperature is of 23 °C (73.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

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October is generally a warm to hot, muggy month. The average temperature is of 24.2 °C (75 °F), with a minimum of 20 °C (67.9 °F) and a maximum of 28.3 °C (83 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 16 °C (60.5 °F). However, it dropped to 11.5 °C (52.7 °F) in October 2012.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (88.5 °F).
Precipitation amounts to 100 mm (3.9 in), distributed over 8 days.
The day lasts on average 12 hours and 40 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 23 kph (14 mph).
The average sea temperature is of 23.5 °C (74.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

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November is generally a warm to hot, muggy month. The average temperature is of 25.3 °C (78 °F), with a minimum of 21.2 °C (70.1 °F) and a maximum of 29.4 °C (85 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 17.5 °C (64 °F). However, it dropped to 14.1 °C (57.4 °F) in November 1992.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 33 °C (91 °F).
Precipitation amounts to 150 mm (5.9 in), distributed over 11 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 23 kph (14 mph).
The average sea temperature is of 24.5 °C (76 °F). Therefore, the sea is warm enough for swimming.

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December is generally a warm to hot, muggy month. The average temperature is of 26.8 °C (80 °F), with a minimum of 22.8 °C (73.1 °F) and a maximum of 30.9 °C (87.5 °F).
On the coldest nights of the month, the temperature usually drops to around 19 °C (66 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 165 mm (6.5 in), distributed over 11 days.
The day lasts on average 13 hours and 40 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 7.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 20 kph (13 mph).
The average sea temperature is of 26 °C (78.5 °F). Therefore, the sea is warm enough for swimming.