Toamasina climate: monthly averages: annual mean temperature 23.8 C; warmest month Feb (26.1 C); coldest month Aug (21.1 C).
Annual mean temperature: 23.8 C
Warmest month: Feb (26.1 C)
Coldest month: Aug (21.1 C)
Wettest month: Jan (9.95 mm/day)
All-time record high: 33.1 C
All-time record low: 16.6 C
Toamasina’s climate averages **23.8°C annually**, with warmest temperatures in February (26.1°C) and coolest in August (21.1°C). The city receives about **1,949 mm of rain yearly**, peaking in January (9.95 mm/day). Extreme temperatures range from **33.1°C** (record high) to **16.6°C** (record low).
Annual mean temperature 23.8 C
Warmest month Feb (26.1 C)
Coldest month Aug (21.1 C)
Wettest month Jan (9.95 mm/day)
All-time record high 33.1 C
All-time record low 16.6 C
Annual precipitation 1,949 mm / year
Coordinates -18.1492, 49.40234
Population 345,107
Average monthly temperature and rainfall in Toamasina
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
26.0
9.95
32.0
22.3
Feb
26.1
9.36
32.3
21.8
Mar
25.8
9.86
31.1
22.2
Apr
24.9
5.96
29.3
21.1
May
23.7
4.46
29.1
18.7
Jun
22.2
4.16
27.6
18.6
Jul
21.2
4.03
26.2
16.6
Aug
21.1
2.59
26.7
16.8
Sep
21.6
1.99
28.1
17.3
Oct
23.0
2.24
29.7
18.0
Nov
24.3
3.19
30.3
18.1
Dec
25.6
6.47
33.1
21.5
What the Toamasina climate table shows
Values are multi-decadal climatological averages for the -18.1492, 49.40234 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
**When is Toamasina’s wettest month?**?
January, with an average of **9.95 mm of rain per day**.
**What’s the typical daily rainfall in Toamasina?**?