Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The commencement of September brings an average high-temperature of a still warm 24°C (75.2°F), marking an inconsequential divergence from August. In the month of September, an average of 15.7°C (60.3°F) marks the low-temperature in Guimaraes.Humidity
With an average relative humidity of 68%, September is the least humid month.Rainfall
In Guimaraes, during September, the rain falls for 7.2 days and regularly aggregates up to 34mm (1.34") of precipitation. In Guimaraes, during the entire year, the rain falls for 137 days and collects up to 815mm (32.09") of precipitation.Daylight
In Guimaraes, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 06:59 and sunset at 20:06. On the last day of September, in Guimaraes, sunrise is at 07:29 and sunset at 19:16 WEST.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 5 in September translates into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. To guard against the harmful effects of the Sun, minimize exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Guimaraes in September?
What is the least humid month in Guimaraes?
What is the average humidity in September in Guimaraes?
How many days does it rain in September in Guimaraes?
How many hours of daylight does Guimaraes have in September?
When is the sunrise / sunset in September in Guimaraes?
How many hours of sunshine does Guimaraes have in September?
What is the UV index intensity in September in Guimaraes?
Average temperature in September
Guimaraes, Portugal
- Average high temperature in September: 24°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in September: 15.7°C
The months with the highest average low temperature are July and August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).
Average pressure in September
Guimaraes, Portugal
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Guimaraes, Portugal
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is September (9.6km/h).
Average humidity in September
Guimaraes, Portugal
- Average humidity in September: 68%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (68%).
Average rainfall in September
Guimaraes, Portugal
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is November (126mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in September
Guimaraes, Portugal
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is November (16.1 days).
The month with the least rainy days is August (4.7 days).
Average daylight in September /
Average sunshine in September
Guimaraes, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Guimaraes, Portugal
- Average sunshine days in September: 21.8 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is November (11.9 days).
Average UV index in September
Guimaraes, Portugal
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Guimaraes, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 18).
Average visibility in September
Guimaraes, Portugal
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
