Temperatures in September
It's warm in September in Viseu with an average temperature of 25°C. Temperatures this month range from a low of 23°C to a high of 28°C. At night, you can expect temperatures between 12°C and 17°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Viseu 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 Viseu with hot temperatures, averaging around 27°C during the day and nights close to 16°C. A few showers might pop up in the first days of the month, but the weather remains 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 25°C, with nights close to 15°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of September
By the end of September, the average daytime temperature in Viseu will be around 24°C, with nights close to 14°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
Precipitation in September
In September, there is an average of 68 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average precipitation chance is 23% 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 Viseu. 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.
Viseu in September |
London | ||
|---|---|---|---|
 Average Temperature |
25°C | 20°C | |
 High Temp |
28°C | 22°C | |
| Low Temp |
23°C | 17°C | |
 Total Precipitation |
68 mm | 44 mm | |
| Rainy Days |
7 days | 8 days | |
August
UV index
The UV index is a maximum of 8 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 Viseu?
Want nice weather? Then September is a great time to be in Viseu. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Viseu in September
With 38°C, Viseu hit the highest temperature in the last 10 years in September 2016. The lowest daytime temperature in this month was 15°C in 2016. The extreme night temperatures ranged from a low of 3°C to a high of 25°C.
Check out the climate of Viseu 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 Viseu
This chart shows the average daily temperatures, both day and night, for each day in September in Viseu, 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 Viseu
The chart below shows the average daily precipitation in September for Viseu, 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 7 days of rain in Viseu.
Daily UV Index in September in Viseu
This chart shows the average daily UV index in September in Viseu, 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 Viseu Over the Years
This chart shows the average temperature in September in Viseu, measured in degrees Celsius, over the past years.
Total Precipitation in September in Viseu Over the Years
This chart shows the average precipitation in September in Viseu, 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 Viseu
Click on a specific day in September for detailed info on the typical weather on that day in Viseu. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Viseu
Have you been to Viseu in September?
Share your weather experience in September in Viseu.
Average Weather in Viseu by Month
Click on a month below to see detailed weather info for Viseu. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
