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Hourly Forecast
Daylight Hours
05:32
Sunrise
17:31
Sunset
Moon
Waxing Gibbous
12:19
Moonrise
01:13
Moonset
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View stargazing scoreWeather in São Mateus tomorrow, September 21, 2026
São Mateus keeps a mostly sunny profile on September 21, 2026, aside from a cloudier spell around 09:00. Outside that window, bright conditions should still lead the day. The morning looks comparatively open, with cloud near 28% around 09:00. Early outdoor plans have a better chance of staying dry and bright.
Temperatures climb from an overnight low near 20°C toward a daytime high of about 26°C. Moisture in the air spans 72%-90%, with the highest values around 06:00. Airflow remains manageable, reaching about 5.9 km/h around 15:00.
Later hours favour clearer intervals, as cloud stays near 23% around 12:00. The afternoon is the better half for outdoor time. Horizontal visibility holds close to 16.1 km. The sun rises at 05:31 and sets at 17:31, for a total of 12 hours 0 minutes of sunlight today.
Taken together, settled sunshine in São Mateus on September 21, 2026 makes outdoor timing easier, with highs near 26°C.
Frequently asked questions about weather in São Mateus
How warm does it get in São Mateus?
The warmest month in São Mateus is March, with average high temperatures of 28°C. The average temperature during this period is around 26°C.
How cold does it get in São Mateus?
The coldest month in São Mateus is July, with average low temperatures of 21°C. The average temperature during this period is around 23°C.
What is the wettest time of year in São Mateus?
The wettest month in São Mateus is December, with an average of 196mm of precipitation.
What is the driest time of year in São Mateus?
The driest month in São Mateus is June, with an average of 48mm of precipitation.
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