Climate averages 1991–2020
Fianarantsoa weather
in August.
A mild, very dry month: the 10th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Fianarantsoa: daytime highs average 19.5°C and nights cool to about 10.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 8.5 mm of rain on roughly 3 days, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 23 min on an average August day.
The nearest other city in this atlas is Antsirabe (177 km away). In August its highs average 20.5°C, 1.1°C warmer than Fianarantsoa, with 5.8 mm of rain.
Among the 12 cities listed in Madagascar, Fianarantsoa ranks 11th of 12 for the warmest August highs and 8th of 12 for the driest August (rainfall, lowest first). The mean August high of those 12 cities is 23.4°C; Fianarantsoa is 4.0°C cooler than that mean.
From August to September, average highs rise by 2.3°C to 21.8°C, and monthly rainfall rises from 8.5 mm to 9.2 mm.
The annual picture
August 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
Fianarantsoa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.6°C17.6°C | 17.6°C | 287 | 22.8 | 13.313 h |
| February | 24.2°C17.5°C | 17.5°C | 215 | 19.2 | 12.813 h |
| March | 23.9°C17.1°C | 17.1°C | 146 | 16.7 | 12.212 h |
| April | 22.8°C15.6°C | 15.6°C | 49 | 10.3 | 11.612 h |
| May | 21.0°C13.8°C | 13.8°C | 24 | 5.4 | 11.111 h |
| June | 18.9°C11.5°C | 11.5°C | 12 | 3.1 | 10.811 h |
| July | 17.9°C10.5°C | 10.5°C | 15 | 3.5 | 11.011 h |
| August, selected | 19.5°C10.7°C | 10.7°C | 8.5 | 2.7 | 11.411 h |
| September | 21.8°C11.8°C | 11.8°C | 9.2 | 2.5 | 12.012 h |
| October | 23.9°C14.0°C | 14.0°C | 43 | 7.4 | 12.613 h |
| November | 25.1°C15.8°C | 15.8°C | 95 | 12.6 | 13.113 h |
| December | 25.2°C17.1°C | 17.1°C | 209 | 19.7 | 13.413 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
August in nearby cities
- Antsirabe in AugustMadagascar · 177 kmHigh 20.5°C · Low 8.2°C · 5.8 mm rain
- Antanifotsy in AugustMadagascar · 202 kmHigh 18.5°C · Low 7.7°C · 7.6 mm rain
- Imerintsiatosika in AugustMadagascar · 276 kmHigh 20.6°C · Low 10.0°C · 3.8 mm rain
- Antananarivo in AugustMadagascar · 286 kmHigh 20.2°C · Low 10.2°C · 3.3 mm rain
- Tôlanaro in AugustMadagascar · 398 kmHigh 23.2°C · Low 17.6°C · 46 mm rain
- Toliara in AugustMadagascar · 410 kmHigh 27.8°C · Low 18.0°C · 3.7 mm rain
- Toamasina in AugustMadagascar · 440 kmHigh 22.7°C · Low 18.9°C · 112 mm rain
- Mahajanga in AugustMadagascar · 643 kmHigh 31.3°C · Low 20.9°C · 1.2 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 Fianarantsoa) is explained once on the Fianarantsoa year overview and on the Sources, method and limits page.