ClimateAverages

Nyanza Climate

Southern Province, Rwanda · 11 weather stations within 200 km · records 1893 to 2025

Average annual daytime high
26.0°C
Warmest month · September
27.1°C
Typical daytime high
Coldest month · July
13.8°C
Typical overnight low

Nyanza has an average annual daytime high of 26.0°C, based on the 1951 to 1980 baseline. Its warmest month is September, when highs typically reach 27.1°C, and its coldest is July, with overnight lows near 13.8°C.

Month by month averages

MonthAvg highAvg low
January26.1°C15.3°C
February26.3°C15.5°C
March26.1°C15.7°C
April25.3°C15.9°C
May25.3°C15.6°C
June25.5°C14.1°C
July25.9°C13.8°CColdest
August26.8°C15.1°C
September27.1°C15.6°CWarmest
October26.4°C15.5°C
November25.4°C15.6°C
December25.3°C15.3°C

Temperature range across the year

12°16°20°25°29°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2023
+1.5°C vs. 1951–1980
Coldest year on record
1916
-0.9°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Nyanza getting hotter?

Since 1900, Nyanza's average temperature has risen by 0.0°C. Compared to the earliest station records that begin in 1893, warming totals +1.5°C.

19.9°20.5°21.0°21.6°22.1°1951–1980 baseline19251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
April to December

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Nyanza?

Nyanza's average annual daytime high is 26.0°C, based on the 1951 to 1980 baseline period. The warmest month is September, with highs averaging 27.1°C, and the coldest is July, with lows averaging 13.8°C.

What is the warmest month in Nyanza?

September is the warmest month in Nyanza, with typical daytime highs of 27.1°C.

What is the hottest year on record for Nyanza?

2023 is the hottest year on record for Nyanza, running +1.5°C above the 1951 to 1980 baseline.

Is Nyanza getting hotter?

Yes. Since 1900, Nyanza has warmed by roughly 0.0°C.

When is the best time to visit Nyanza?

April to December typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.