Weatheo

Chatham Weather by Month

Average temperatures, rainfall and humidity for Chatham, Canada, month by month, built from OpenWeather’s historical records. Use it to see what a typical Chatham month looks like before you travel — then check the live Chatham forecast for the days ahead.

Warmest month

July

28°C average high

Coolest month

February

-7°C average low

Wettest month

April

66 mm of rain

Driest month

February

19 mm of rain

Average temperature and rainfall in Chatham by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January1°C-7°C-26°C / 15°C
29 mm
81%17 km/h
February1°C-7°C-32°C / 40°C
19 mm
79%17 km/h
March7°C-2°C-23°C / 23°C
38 mm
74%17 km/h
April13°C4°C-9°C / 28°C
66 mm
71%16 km/h
May20°C10°C-2°C / 32°C
50 mm
70%14 km/h
June25°C15°C7°C / 35°C
61 mm
71%13 km/h
July28°C18°C10°C / 36°C
50 mm
75%11 km/h
August27°C17°C8°C / 35°C
57 mm
77%11 km/h
September24°C14°C0°C / 34°C
49 mm
77%12 km/h
October17°C8°C-2°C / 30°C
51 mm
75%15 km/h
November9°C2°C-13°C / 23°C
38 mm
76%16 km/h
December4°C-2°C-20°C / 16°C
35 mm
81%16 km/h

Best time to visit Chatham

The most comfortable time to visit Chatham is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around April, totalling about 542 mm a year.

Travellers who prefer heat should aim for July, when highs average 28°C. April is the month to avoid if rain would spoil your plans — it averages 66 mm, roughly 3× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Chatham forecast for what is happening now.

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