Climate averages 1991–2020

Kasulu weather
in January.

A warm, very wet month: the joint 10th warmest and the 11th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 25.5°C Daytime mean, January

Average low 17.2°C Night-time mean, January

Rainfall 235 mm 28 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

January is a warm month in Kasulu: daytime highs average 25.5°C and nights cool to about 17.2°C. By daytime temperature it is the joint 10th warmest of the 12 months.

Expect about 235 mm of rain on roughly 28 days, which makes January a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 21 min on an average January day.

The nearest other city in this atlas is Kigoma (62 km away). In January its highs average 26.1°C, 0.6°C warmer than Kasulu, with 255 mm of rain.

Among the 43 cities listed in Tanzania, Kasulu ranks 32nd of 43 for the warmest January highs and 35th of 43 for the driest January (rainfall, lowest first). The mean January high of those 43 cities is 27.1°C; Kasulu is 1.6°C cooler than that mean.

From January to February, average highs rise by 0.6°C to 26.1°C, and monthly rainfall falls from 235 mm to 191 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages 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

1991–2020

Monthly climate averages for Kasulu, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	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	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

January in nearby cities

Distance from Kasulu

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 limits

How 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.