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
Negreiros registers an average high-temperature of a still warm 25.7°C (78.3°F) at the commencement of September, closely related to the preceding month. During September, the average low-temperature is a mild 14.6°C (58.3°F).Humidity
The months with the lowest humidity in Negreiros are August and September, with an average relative humidity of 65%.Rainfall
In September, the rain falls for 5.8 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Negreiros, there are 127.9 rainfall days, and 828mm (32.6") of precipitation is accumulated.Daylight
In Negreiros, Portugal, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:01 and sunset at 20:07. On the last day of September, in Negreiros, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September in Negreiros is 9.1h.UV index
In Negreiros, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Be vigilant - Preventing sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What are the temperatures in Negreiros in September?
What is the least humid month in Negreiros?
What is the average humidity in September in Negreiros?
How much does it rain in Negreiros in September?
What is the average length of the day in September in Negreiros?
When are sunrise and sunset in September in Negreiros?
How many hours of sunshine does Negreiros have in September?
How high is the UV index in September in Negreiros?
Average temperature in September
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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
Negreiros, 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).
Negreiros, Portugal
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