ClimateSearch

Toamasina, Atsinanana

Madagascar · 345k people · 7 m elevation · Southern Hemisphere

Every month in detail

Thirty-year averages for each calendar month.

Monthly climate normals. Values shown as an em dash are missing from the source data.
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Average high88°F (31°C)88°F (31°C)87°F (31°C)86°F (30°C)83°F (29°C)80°F (27°C)77°F (25°C)78°F (26°C)80°F (27°C)83°F (28°C)85°F (29°C)87°F (31°C)
Average low73°F (23°C)73°F (23°C)72°F (22°C)69°F (21°C)66°F (19°C)62°F (17°C)62°F (16°C)62°F (17°C)63°F (17°C)65°F (19°C)69°F (20°C)71°F (22°C)
Dew point73°F (23°C)74°F (23°C)73°F (23°C)71°F (22°C)69°F (20°C)65°F (18°C)63°F (17°C)63°F (17°C)64°F (18°C)67°F (19°C)69°F (21°C)72°F (22°C)
Rainfall11.8 in (299 mm)13.5 in (344 mm)15.2 in (387 mm)9 in (229 mm)7.8 in (198 mm)6.9 in (176 mm)7.8 in (198 mm)4.6 in (118 mm)3.7 in (94 mm)3.7 in (94 mm)4.7 in (119 mm)9.5 in (241 mm)
Rainy days1617191514161714118913
Snowfall0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)
Sunshine158 h144 h171 h191 h196 h185 h186 h205 h213 h226 h227 h209 h

Scroll the table sideways for all twelve months.

Projected change, 2031–2050

Model projection, not an observation

How this city’s climate may change, measured against the same models’ own 1995–2014 output. Nothing here affects the match score above.

Change in summer afternoon highs

+1.5°F (+0.8°C)

Models range from +1.2°F (+0.7°C) to +1.6°F (+0.9°C)

Days above 90°F (32°C) a year

—

Too few hot days today to project a reliable change

Warming by month
  • January: +1.3°F (+0.7°C)
  • February: +1.5°F (+0.8°C)
  • March: +1.3°F (+0.7°C)
  • April: +1.7°F (+0.9°C)
  • May: +1.9°F (+1.0°C)
  • June: +1.6°F (+0.9°C)
  • July: +1.6°F (+0.9°C)
  • August: +1.5°F (+0.8°C)
  • September: +1.8°F (+1.0°C)
  • October: +1.8°F (+1.0°C)
  • November: +1.9°F (+1.0°C)
  • December: +1.7°F (+0.9°C)
Scenario
SSP5-8.5 (high emissions)
Models
4 · CMIP6 HighResMIP, downscaled

This is a high-emissions pathway — the upper end of plausible futures, not a central estimate. Changes are measured by each model against its own past output and then applied to the observed record, which cancels each model’s bias but not the genuine uncertainty about how much warming occurs. Where the models disagree widely, the range above is the honest answer.