Climate averages 1991–2020
Imerintsiatosika weather
in May.
A mild, fairly dry month: the 9th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Imerintsiatosika: daytime highs average 21.9°C and nights cool to about 12.9°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 15 mm of rain on roughly 3 days, which makes May a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 14 min on an average May day.
The nearest other city in this atlas is Antananarivo (24 km away). In May its highs average 21.9°C, about as warm as Imerintsiatosika, with 12 mm of rain.
Among the 12 cities listed in Madagascar, Imerintsiatosika ranks joint 8th of 12 for the warmest May highs and 5th of 12 for the driest May (rainfall, lowest first). The mean May high of those 12 cities is 24.9°C; Imerintsiatosika is 3.1°C cooler than that mean.
From May to June, average highs fall by 2.1°C to 19.8°C, and monthly rainfall falls from 15 mm to 3.7 mm.
The annual picture
May 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 | 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, selected | 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
May in nearby cities
- Antananarivo in MayMadagascar · 24 kmHigh 21.9°C · Low 13.3°C · 12 mm rain
- Antanifotsy in MayMadagascar · 74 kmHigh 19.8°C · Low 10.8°C · 24 mm rain
- Antsirabe in MayMadagascar · 103 kmHigh 21.0°C · Low 11.0°C · 20 mm rain
- Toamasina in MayMadagascar · 239 kmHigh 25.0°C · Low 21.6°C · 201 mm rain
- Fianarantsoa in MayMadagascar · 276 kmHigh 21.0°C · Low 13.8°C · 24 mm rain
- Mahajanga in MayMadagascar · 378 kmHigh 31.8°C · Low 23.3°C · 6.4 mm rain
- Antalaha in MayMadagascar · 553 kmHigh 26.8°C · Low 22.2°C · 66 mm rain
- Sambava in MayMadagascar · 606 kmHigh 27.0°C · Low 22.1°C · 120 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.