Climate averages 1991–2020
Kasulu weather
in May.
A warm, moderately wet month: the joint 7th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Kasulu: daytime highs average 26.0°C and nights cool to about 17.3°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 68 mm of rain on roughly 11 days, which makes May a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average May day.
The nearest other city in this atlas is Kigoma (62 km away). In May its highs average 26.5°C, about as warm as Kasulu, with 104 mm of rain.
Among the 43 cities listed in Tanzania, Kasulu ranks joint 27th of 43 for the warmest May highs and 30th of 43 for the driest May (rainfall, lowest first). The mean May high of those 43 cities is 26.1°C; Kasulu is level with that mean.
From May to June, average highs rise by 0.8°C to 26.8°C, and monthly rainfall falls from 68 mm to 14 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
Kasulu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.5°C17.2°C | 17.2°C | 235 | 28.2 | 12.412 h |
| February | 26.1°C17.5°C | 17.5°C | 191 | 24.5 | 12.312 h |
| March | 26.0°C17.6°C | 17.6°C | 214 | 27.3 | 12.112 h |
| April | 25.5°C17.5°C | 17.5°C | 172 | 23.7 | 12.012 h |
| May, selected | 26.0°C17.3°C | 17.3°C | 68 | 11.0 | 11.912 h |
| June | 26.8°C16.1°C | 16.1°C | 14 | 3.0 | 11.912 h |
| July | 27.6°C15.6°C | 15.6°C | 2.8 | 0.8 | 11.912 h |
| August | 28.9°C16.6°C | 16.6°C | 10 | 1.8 | 12.012 h |
| September | 30.0°C17.8°C | 17.8°C | 36 | 6.2 | 12.112 h |
| October | 28.4°C18.1°C | 18.1°C | 136 | 17.0 | 12.212 h |
| November | 25.9°C17.4°C | 17.4°C | 231 | 25.4 | 12.312 h |
| December | 25.1°C17.1°C | 17.1°C | 257 | 28.9 | 12.412 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
- Kigoma in MayTanzania · 62 kmHigh 26.5°C · Low 23.1°C · 104 mm rain
- Gitega in MayBurundi · 129 kmHigh 22.1°C · Low 14.6°C · 45 mm rain
- Bujumbura in MayBurundi · 156 kmHigh 26.7°C · Low 22.5°C · 53 mm rain
- Uvira in MayDemocratic Republic of the Congo · 169 kmHigh 27.1°C · Low 23.2°C · 53 mm rain
- Kalemie in MayDemocratic Republic of the Congo · 183 kmHigh 26.7°C · Low 21.6°C · 61 mm rain
- Mpanda in MayTanzania · 224 kmHigh 27.9°C · Low 17.5°C · 20 mm rain
- Kalima in MayDemocratic Republic of the Congo · 232 kmHigh 31.0°C · Low 20.2°C · 27 mm rain
- Ushirombo in MayTanzania · 239 kmHigh 27.5°C · Low 17.9°C · 33 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 Kasulu) is explained once on the Kasulu year overview and on the Sources, method and limits page.