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28°
Partly Cloudy
Feels Like: 29°
Min: 19°
Max: 28°
The next few hours will be mostly cloudy, with today reaching 28°C and dropping to 19°C. The coming days will be light rain throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:37
Sunrise
17:37
Sunset
Moon
Waxing Gibbous
12:21
Moonrise
01:23
Moonset
Daily Forecast
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View stargazing scoreWeather in Castelo today, September 20, 2026
Expect a mostly clear day in Castelo on September 20, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.
The temperature range runs from about 19°C up to 28°C. Relative humidity sits between 49% and 75%, reaching its peak around 23:00. Airflow remains manageable, reaching about 3.8 km/h around 14:00.
Through the afternoon cloud remains the main feature, with cover near 60% around 14:00. Bright spells should stay limited even as the day wears on. Visibility stays near 16.1 km. Expect sunrise at 05:37, sunset at 17:37, and 11 hours 59 minutes of sunlight today overall.
Taken together, settled sunshine in Castelo on September 20, 2026 makes outdoor timing easier, with highs near 28°C.
Frequently asked questions about weather in Castelo
How warm does it get in Castelo?
The warmest month in Castelo is February, with average high temperatures of 29°C. The average temperature during this period is around 24°C.
How cold does it get in Castelo?
The coldest month in Castelo is July, with average low temperatures of 13°C. The average temperature during this period is around 18°C.
What is the wettest time of year in Castelo?
The wettest month in Castelo is December, with an average of 194mm of precipitation.
What is the driest time of year in Castelo?
The driest month in Castelo is July, with an average of 17mm of precipitation.
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