The climate of Toamasina (or Tamatave, formerly Port aux prunes) is
, with a warmer, rainier period from December to April and a cooler period from June to September.
The city is located on the east coast of Madagascar, in the region of Atsinanana, of which it is the capital, and at 18 degrees south latitude.
We are in an area where there is no dry season because the southeast trade winds bring rain even in the austral winter. However, the least rainy period is from September to November.
. Here are the average temperatures.
January is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
23.2 °C and a maximum of
30.7 °C.

On the coldest nights of the month, the temperature usually drops to around
21 °C.

On the warmest days of the month, the temperature usually reaches around
34 °C.

Precipitation amounts to
412.2 mm, distributed over 18 days.
The day lasts on average 13 hours and 5 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
8 kph.

The average sea temperature is of
28.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
February, the hottest month of the year, is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
23.1 °C and a maximum of
30.9 °C.

On the coldest nights of the month, the temperature usually drops to around
20.5 °C.

On the warmest days of the month, the temperature usually reaches around
34 °C.

Precipitation amounts to
438 mm, distributed over 17 days.
The day lasts on average 12 hours and 40 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
8.7 kph.

The average sea temperature is of
28.6 °C. Therefore, the sea is pleasantly warm and allows long swims.
March is generally a warm to hot, muggy month. The average temperature is of
26.7 °C, with a minimum of
23 °C and a maximum of
30.4 °C.

On the coldest nights of the month, the temperature usually drops to around
20.5 °C.

On the warmest days of the month, the temperature usually reaches around
33.5 °C.

Precipitation amounts to
454.6 mm, distributed over 20 days.
The day lasts on average 12 hours and 10 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
8.4 kph.

The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
April is generally a warm to hot, muggy month. The average temperature is of
25.7 °C, with a minimum of
21.9 °C and a maximum of
29.5 °C.

On the coldest nights of the month, the temperature usually drops to around
19 °C.

On the warmest days of the month, the temperature usually reaches around
31.5 °C.

Precipitation amounts to
299.6 mm, distributed over 16 days.
The day lasts on average 11 hours and 40 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
7.8 kph.

The average sea temperature is of
27.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
May is generally a warm to hot, muggy month. The average temperature is of
24.1 °C, with a minimum of
20.2 °C and a maximum of
28 °C.

On the coldest nights of the month, the temperature usually drops to around
17 °C.

On the warmest days of the month, the temperature usually reaches around
30.5 °C.

Precipitation amounts to
269.7 mm, distributed over 17 days.
The day lasts on average 11 hours and 20 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
7.6 kph.

The average sea temperature is of
27 °C. Therefore, the sea is pleasantly warm and allows long swims.
June is generally a warm month. The average temperature is of
22.5 °C, with a minimum of
18.7 °C and a maximum of
26.4 °C.

On the coldest nights of the month, the temperature usually drops to around
15 °C.

On the warmest days of the month, the temperature usually reaches around
29 °C.

Precipitation amounts to
276.8 mm, distributed over 20 days.
The day lasts on average 11 hours and 5 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.

There are on average 5.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
9.3 kph.

The average sea temperature is of
25.8 °C. Therefore, the sea is warm enough for swimming.
July, the coolest month of the year, is generally a warm month. The average temperature is of
21.3 °C, with a minimum of
17.4 °C and a maximum of
25.2 °C.

On the coldest nights of the month, the temperature usually drops to around
14 °C.

On the warmest days of the month, the temperature usually reaches around
28 °C.

Precipitation amounts to
279.7 mm, distributed over 21 days.
The day lasts on average 11 hours and 10 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
10.4 kph.

The average sea temperature is of
24.7 °C. Therefore, the sea is warm enough for swimming.
August is generally a warm month. The average temperature is of
21.4 °C, with a minimum of
17.3 °C and a maximum of
25.5 °C.

On the coldest nights of the month, the temperature usually drops to around
14 °C.

On the warmest days of the month, the temperature usually reaches around
27.5 °C.

Precipitation amounts to
178.5 mm, distributed over 17 days.
The day lasts on average 11 hours and 30 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
8.6 kph.

The average sea temperature is of
24.1 °C. Therefore, the sea is warm enough for swimming.
September is generally a warm month. The average temperature is of
22 °C, with a minimum of
17.8 °C and a maximum of
26.3 °C.

On the coldest nights of the month, the temperature usually drops to around
15 °C.

On the warmest days of the month, the temperature usually reaches around
28.5 °C.

Precipitation amounts to
117.9 mm, distributed over 14 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
8 kph.

The average sea temperature is of
24.2 °C. Therefore, the sea is warm enough for swimming.
October is generally a warm to hot, muggy month. The average temperature is of
23.4 °C, with a minimum of
19.3 °C and a maximum of
27.5 °C.

On the coldest nights of the month, the temperature usually drops to around
16 °C.

On the warmest days of the month, the temperature usually reaches around
29.5 °C.

Precipitation amounts to
98.9 mm, distributed over 12 days.
The day lasts on average 12 hours and 30 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
7.8 kph.

The average sea temperature is of
25 °C. Therefore, the sea is warm enough for swimming.
November is generally a warm to hot, muggy month. The average temperature is of
24.8 °C, with a minimum of
20.8 °C and a maximum of
28.9 °C.

On the coldest nights of the month, the temperature usually drops to around
17 °C.

On the warmest days of the month, the temperature usually reaches around
31 °C.

Precipitation amounts to
121.4 mm, distributed over 11 days.
The day lasts on average 13 hours and 0 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
7.8 kph.

The average sea temperature is of
26.2 °C. Therefore, the sea is warm enough for swimming.
December is generally a warm to hot, muggy month. The average temperature is of
26.2 °C, with a minimum of
22.3 °C and a maximum of
30.2 °C.

On the coldest nights of the month, the temperature usually drops to around
19.5 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C.

Precipitation amounts to
250.6 mm, distributed over 15 days.
The day lasts on average 13 hours and 10 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.

There are on average 7 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
7.7 kph.

The average sea temperature is of
27.6 °C. Therefore, the sea is pleasantly warm and allows long swims.