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
September's climate shows a minor adjustment in average high-temperatures to a still moderately hot 25.8°C (78.4°F) from August's 27.6°C (81.7°F). Lago registers a significant reduction from the day's heat, with an average temperature drop to a refreshing 13.5°C (56.3°F) in September.Humidity
The average relative humidity in September is 66%.Rainfall
In Lago, during September, the rain falls for 8 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, there are 150.5 rainfall days, and 1002mm (39.45") of precipitation is accumulated.Daylight
In Lago, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 07:00 and sunset at 20:06. On the last day of the month, sunrise is at 07:29 and sunset at 19:16 WEST.
Sunshine
In Lago, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Lago in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Lago, Portugal
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is February (4.7°C).
Average pressure in September
Lago, Portugal
- Average pressure in September: 1017.6mbar
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
Lago, Portugal
- Average wind speed in September: 6.5km/h
The windiest months (with the highest average wind speed) are February and March (8.2km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in September
Lago, Portugal
- Average humidity in September: 66%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Lago, Portugal
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (146mm).
The driest month (with the least rainfall) is July (12mm).
Average rainfall days in September
Lago, Portugal
- Average rainfall days in September: 8 days
The month with the highest number of rainy days is January (17.3 days).
The month with the least rainy days is August (5.4 days).
Average daylight in September /
Average sunshine in September
Lago, 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 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Lago, Portugal
- Average sunshine days in September: 20.4 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is April (10.5 days).
Average UV index in September
Lago, Portugal
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Lago, Portugal
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Lago, Portugal
- Average visibility in September: 9km
The month with the highest visibility is September (9km).
The month with the lowest visibility is January (7km).
