Climate averages 1991–2020

Kisii weather
in August.

A warm, moderately wet month: the 10th warmest and the 2nd driest of the year.

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

Average high 24.2°C Daytime mean, August

Average low 14.2°C Night-time mean, August

Rainfall 77 mm 13 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

August is a warm month in Kisii: daytime highs average 24.2°C and nights cool to about 14.2°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 77 mm of rain on roughly 13 days, which makes August a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average August day.

The nearest other city in this atlas is Migori (54 km away). In August its highs average 27.1°C, 2.9°C warmer than Kisii, with 51 mm of rain.

Among the 37 cities listed in Kenya, Kisii ranks 18th of 37 for the warmest August highs and 31st of 37 for the driest August (rainfall, lowest first). The mean August high of those 37 cities is 24.3°C; Kisii is 0.2°C cooler than that mean.

From August to September, average highs rise by 0.9°C to 25.1°C, and monthly rainfall rises from 77 mm to 93 mm.

The annual picture

August 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

Kisii climate table

1991–2020

Monthly climate averages for Kisii, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	25.1°C14.6°C	14.6°C	151	16.7	12.212 h
February	26.4°C15.0°C	15.0°C	99	13.0	12.112 h
March	26.1°C15.2°C	15.2°C	189	18.9	12.112 h
April	25.0°C15.4°C	15.4°C	277	23.4	12.112 h
May	24.5°C15.3°C	15.3°C	176	19.6	12.112 h
June	23.7°C14.6°C	14.6°C	87	13.6	12.112 h
July	23.6°C14.1°C	14.1°C	51	10.7	12.112 h
August, selected	24.2°C14.2°C	14.2°C	77	13.1	12.112 h
September	25.1°C14.7°C	14.7°C	93	14.2	12.112 h
October	25.3°C15.1°C	15.1°C	149	17.5	12.112 h
November	24.5°C14.6°C	14.6°C	260	23.3	12.112 h
December	24.5°C14.5°C	14.5°C	216	21.2	12.212 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

Distance from Kisii

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 Kisii) is explained once on the Kisii year overview and on the Sources, method and limits page.