ClimateAverages

Joensuu Climate

North Karelia, Finland · population 53,388 · 78 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
5.9°C
Warmest month · July
20.4°C
Typical daytime high
Coldest month · February
-14.5°C
Typical overnight low

Joensuu has an average annual daytime high of 5.9°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 20.4°C, and its coldest is February, with overnight lows near -14.5°C.

Month by month averages

MonthAvg highAvg low
January-7.2°C-14.1°C
February-7.1°C-14.5°CColdest
March-1.4°C-10.7°C
April4.5°C-3.8°C
May12.1°C2.3°C
June18.3°C8.8°C
July20.4°C11.4°CWarmest
August18.6°C10.5°C
September12.2°C5.5°C
October5.2°C0.4°C
November-0.3°C-4.8°C
December-4.6°C-10.5°C

Temperature range across the year

-17°-7°3°13°22°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2024
+3.0°C vs. 1951–1980
Coldest year on record
1808
-3.3°C vs. 1951–1980

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

Is Joensuu getting hotter?

Since 1900, Joensuu's average temperature has risen by +2.8°C. Compared to the earliest station records that begin in 1750, warming totals +2.3°C.

1.5°2.4°3.2°4.0°4.8°1951–1980 baseline190019251950197520002025

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

Best time to visit
June to August

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

FAQ

What is the average temperature in Joensuu?

Joensuu's average annual daytime high is 5.9°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 20.4°C, and the coldest is February, with lows averaging -14.5°C.

What is the warmest month in Joensuu?

July is the warmest month in Joensuu, with typical daytime highs of 20.4°C.

What is the hottest year on record for Joensuu?

2024 is the hottest year on record for Joensuu, running +3.0°C above the 1951 to 1980 baseline.

Is Joensuu getting hotter?

Yes. Since 1900, Joensuu has warmed by roughly +2.8°C.

When is the best time to visit Joensuu?

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

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.