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
The transition from August to September sees average high-temperatures adjusting to a pleasant 22.8°C (73°F), from a not significantly different 23.5°C (74.3°F). Throughout the nights in September, Laundos experiences an average low-temperature of 16.5°C (61.7°F).Humidity
With an average relative humidity of 72%, September is the least humid month.Rainfall
In September, the rain falls for 6.4 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Laundos, there are 131 rainfall days, and 766mm (30.16") of precipitation is accumulated.Daylight
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 07:31 and sunset at 19:18 WEST.
Sunshine
In September, the average sunshine in Laundos, Portugal, is 9.2h.UV index
May through September, with an average maximum UV index of 5, are months with the highest UV index in Laundos. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are the temperatures in Laundos in September?
What is the least humid month in Laundos?
What is the average humidity in September in Laundos?
How many days does it rain in September in Laundos?
How many hours of daylight does Laundos have in September?
When is the sunrise / sunset in September in Laundos?
How long on average sun shines in September in Laundos?
What is the month with the highest UV index in Laundos?
What is the UV index intensity in September in Laundos?
Average temperature in September
Laundos, Portugal
- Average high temperature in September: 22.8°C
The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in September: 16.5°C
The month with the highest average low temperature is August (16.6°C).
The coldest month (with the lowest average low temperature) is February (8.5°C).
Average pressure in September
Laundos, Portugal
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Laundos, Portugal
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is September (11.8km/h).
Average humidity in September
Laundos, Portugal
- Average humidity in September: 72%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (72%).
Average rainfall in September
Laundos, Portugal
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is November (121mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in September
Laundos, Portugal
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is November (16.4 days).
The month with the least rainy days is August (4.3 days).
Average daylight in September /
Average sunshine in September
Laundos, 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
Laundos, Portugal
- Average sunshine days in September: 22.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in September
Laundos, Portugal
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Laundos, Portugal
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 17).
Average visibility in September
Laundos, Portugal
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (10km).
The months with the lowest visibility are January and August (9km).
Laundos, Portugal
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