Temperatures in September
It's warm in September in Castelo Branco with an average temperature of 27°C. Temperatures this month range from a low of 24°C to a high of 30°C. At night, you can expect temperatures between 14°C and 19°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Castelo Branco in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Castelo Branco with hot temperatures, averaging around 30°C during the day and nights close to 18°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature drops to around 27°C, with nights close to 17°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in Castelo Branco will be around 27°C, with nights close to 16°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in September
In September, there is an average of 32 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
The precipitation chance averages 13% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Castelo Branco. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Castelo Branco in September |
London | ||
|---|---|---|---|
 Average Temperature |
27°C | 20°C | |
 High Temp |
30°C | 22°C | |
| Low Temp |
24°C | 17°C | |
 Total Precipitation |
32 mm | 44 mm | |
| Rainy Days |
4 days | 8 days | |
August
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Castelo Branco?
Want nice weather? Then September is a great time to be in Castelo Branco. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Castelo Branco in September
With 41°C, Castelo Branco hit the highest temperature in the last 10 years in September 2016. The lowest daytime temperature in this month was 18°C in 2021. The extreme night temperatures ranged from a low of 8°C to a high of 26°C.
Check out the climate of Castelo Branco for all months and discover the best travel time
Curious about the climate in other parts of Portugal? Check out the weather and climate in places like Algarve, Lisbon, Albufeira, or have a look at other destinations in Portugal.
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Daily Temperature in September in Castelo Branco
This chart shows the average daily temperatures, both day and night, for each day in September in Castelo Branco, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Castelo Branco
The chart below shows the average daily precipitation in September for Castelo Branco, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 4 days of rain in Castelo Branco.
Daily UV Index in September in Castelo Branco
This chart shows the average daily UV index in September in Castelo Branco, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Castelo Branco Over the Years
This chart shows the average temperature in September in Castelo Branco, measured in degrees Celsius, over the past years.
Total Precipitation in September in Castelo Branco Over the Years
This chart shows the average precipitation in September in Castelo Branco, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Castelo Branco
Click on a specific day in September for detailed info on the typical weather on that day in Castelo Branco. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Castelo Branco
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Average Weather in Castelo Branco by Month
Click on a month below to see detailed weather info for Castelo Branco. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Castelo Branco for all months at once
