Climate averages 1991–2020
Imerintsiatosika weather
in January.
A warm, very wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Imerintsiatosika: daytime highs average 24.5°C and nights cool to about 16.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 305 mm of rain on roughly 22 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 08 min on an average January day.
The nearest other city in this atlas is Antananarivo (24 km away). In January its highs average 24.6°C, about as warm as Imerintsiatosika, with 287 mm of rain.
Among the 12 cities listed in Madagascar, Imerintsiatosika ranks 10th of 12 for the warmest January highs and joint 8th of 12 for the driest January (rainfall, lowest first). The mean January high of those 12 cities is 27.1°C; Imerintsiatosika is 2.5°C cooler than that mean.
From January to February, average highs fall by 0.2°C to 24.3°C, and monthly rainfall falls from 305 mm to 273 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Imerintsiatosika climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 24.5°C16.7°C | 16.7°C | 305 | 21.9 | 13.113 h |
| February | 24.3°C16.7°C | 16.7°C | 273 | 19.4 | 12.713 h |
| March | 24.3°C16.3°C | 16.3°C | 147 | 15.1 | 12.212 h |
| April | 23.6°C14.9°C | 14.9°C | 38 | 7.5 | 11.712 h |
| May | 21.9°C12.9°C | 12.9°C | 15 | 2.9 | 11.211 h |
| June | 19.8°C10.7°C | 10.7°C | 3.7 | 0.8 | 11.011 h |
| July | 19.0°C9.7°C | 9.7°C | 3.7 | 1.0 | 11.111 h |
| August | 20.6°C10.0°C | 10.0°C | 3.8 | 0.9 | 11.511 h |
| September | 23.4°C11.2°C | 11.2°C | 7.1 | 1.7 | 12.012 h |
| October | 25.5°C13.4°C | 13.4°C | 45 | 6.8 | 12.513 h |
| November | 26.1°C15.0°C | 15.0°C | 111 | 12.1 | 13.013 h |
| December | 25.5°C16.3°C | 16.3°C | 212 | 18.0 | 13.213 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Antananarivo in JanuaryMadagascar · 24 kmHigh 24.6°C · Low 16.8°C · 287 mm rain
- Antanifotsy in JanuaryMadagascar · 74 kmHigh 23.0°C · Low 14.8°C · 344 mm rain
- Antsirabe in JanuaryMadagascar · 103 kmHigh 23.5°C · Low 15.4°C · 379 mm rain
- Toamasina in JanuaryMadagascar · 239 kmHigh 27.9°C · Low 23.7°C · 305 mm rain
- Fianarantsoa in JanuaryMadagascar · 276 kmHigh 24.6°C · Low 17.6°C · 287 mm rain
- Mahajanga in JanuaryMadagascar · 378 kmHigh 29.7°C · Low 24.4°C · 431 mm rain
- Antalaha in JanuaryMadagascar · 553 kmHigh 29.0°C · Low 23.7°C · 294 mm rain
- Sambava in JanuaryMadagascar · 606 kmHigh 29.3°C · Low 23.8°C · 268 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Imerintsiatosika) is explained once on the Imerintsiatosika year overview and on the Sources, method and limits page.