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
Roliça registers an average high-temperature of a still moderately hot 24.7°C (76.5°F) at the commencement of September, closely related to the preceding month. Throughout September nights, Roliça registers an average low-temperature of 16.5°C (61.7°F).Humidity
September and October, with an average relative humidity of 72%, are the least humid months.Rainfall
In Roliça, in September, during 4.9 rainfall days, 8mm (0.31") of precipitation is typically accumulated. Throughout the year, in Roliça, there are 101.9 rainfall days, and 170mm (6.69") of precipitation is accumulated.Daylight
In Roliça, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:05 and sunset at 20:07. On the last day of September, sunrise is at 07:32 and sunset at 19:20 WEST.
Sunshine
In Roliça, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Roliça have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Roliça have in September?
What is the UV index reading in September?
Average temperature in September
Roliça, Portugal
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (14°C).
- Average low temperature in September: 16.5°C
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (8.8°C).
Average pressure in September
Roliça, Portugal
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Roliça, Portugal
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is September (13.6km/h).
Average humidity in September
Roliça, Portugal
- Average humidity in September: 72%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are September and October (72%).
Average rainfall in September
Roliça, Portugal
- Average rainfall in September: 8mm
The wettest month (with the highest rainfall) is November (34mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Roliça, Portugal
- Average rainfall days in September: 4.9 days
The month with the highest number of rainy days is November (13.7 days).
The month with the least rainy days is August (3 days).
Average daylight in September /
Average sunshine in September
Roliça, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Roliça, Portugal
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is November (13.3 days).
Average UV index in September
Roliça, Portugal
- Average UV index in September: 5
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Roliça, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are August and September (Cloud cover 21).
Average visibility in September
Roliça, Portugal
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).
