Weatheo

São Mateus Weather by Month

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

Warmest month

February

31°C average high

Coolest month

July

17°C average low

Wettest month

November

102 mm of rain

Driest month

September

35 mm of rain

Average temperature and rainfall in São Mateus 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
January30°C22°C19°C / 38°C
78 mm
80%11 km/h
February31°C22°C19°C / 38°C
79 mm
80%9 km/h
March31°C22°C19°C / 36°C
95 mm
80%9 km/h
April29°C21°C16°C / 38°C
91 mm
80%9 km/h
May28°C19°C14°C / 35°C
49 mm
80%9 km/h
June27°C18°C11°C / 33°C
41 mm
81%9 km/h
July26°C17°C12°C / 33°C
41 mm
79%9 km/h
August27°C18°C11°C / 36°C
41 mm
78%10 km/h
September28°C19°C14°C / 39°C
35 mm
75%11 km/h
October29°C21°C16°C / 40°C
89 mm
77%12 km/h
November28°C21°C16°C / 40°C
102 mm
82%12 km/h
December29°C22°C18°C / 39°C
92 mm
83%11 km/h

Best time to visit São Mateus

The most comfortable time to visit São Mateus is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around November, totalling about 834 mm a year.

Travellers who prefer heat should aim for February, when highs average 31°C. November is the month to avoid if rain would spoil your plans — it averages 102 mm, roughly 3× the rainfall of the driest month (September).

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

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