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
Weather in September
Temperature
In September, Grimancelos experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 27.2°C (81°F) in August to a still moderately hot 25.7°C (78.3°F). Grimancelos, in September, observes a steady average low-temperature of 14.6°C (58.3°F).Humidity
August and September, with an average relative humidity of 65%, are the least humid months in Grimancelos, Portugal.Rainfall
In Grimancelos, in September, during 5.8 rainfall days, 31mm (1.22") of precipitation is typically accumulated. Throughout the year, in Grimancelos, Portugal, there are 127.9 rainfall days, and 828mm (32.6") of precipitation is accumulated.Daylight
In Grimancelos, Portugal, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 07:01 and sunset at 20:07. On the last day of the month, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
In September, the average sunshine in Grimancelos is 9.1h.UV index
The average daily maximum UV index in September in Grimancelos is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are September temperatures in Grimancelos?
What is the least humid month in Grimancelos?
What is the average humidity in September in Grimancelos?
How much does it rain in Grimancelos in September?
How many hours of daylight does Grimancelos have in September?
What time are sunrise and sunset in September in Grimancelos?
How long on average sun shines in September in Grimancelos?
How high is the UV index in September in Grimancelos?
Average temperature in September
Grimancelos, Portugal
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (12.6°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is July (15.1°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).
Average pressure in September
Grimancelos, Portugal
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Grimancelos, Portugal
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is March (9.3km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in September
Grimancelos, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in September
Grimancelos, Portugal
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is November (125mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in September
Grimancelos, Portugal
- Average rainfall days in September: 5.8 days
The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (3.5 days).
Average daylight in September /
Average sunshine in September
Grimancelos, 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 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Grimancelos, Portugal
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is November (13.2 days).
Average UV index in September
Grimancelos, 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, March, November and December (UV index 3).
Average cloud cover in September
Grimancelos, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Grimancelos, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, March, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and April (8km).
Grimancelos, Portugal
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