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
Palmela marks the onset of September with an average high-temperature of a still moderately hot 26.7°C (80.1°F), subtly divergent from August's 28.8°C (83.8°F). In Palmela, in September, the average low-temperature is a comfortable 16.9°C (62.4°F).Humidity
In Palmela, the average relative humidity in September is 66%.Rainfall
In Palmela, in September, it is raining for 4.8 days, with typically 15mm (0.59") of accumulated precipitation. Throughout the year, in Palmela, there are 100.8 rainfall days, and 338mm (13.31") of precipitation is accumulated.Daylight
In Palmela, 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 20:05. On the last day of September, in Palmela, sunrise is at 07:31 and sunset at 19:19 WEST.
Sunshine
In September, the average sunshine is 9.3h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 6 transforms into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the average September temperature in Palmela?
What is the average humidity in September in Palmela?
How much does it rain in Palmela in September?
What is the average length of the day in September in Palmela?
When is the sunrise / sunset in September in Palmela?
How many hours of sunshine does Palmela have in September?
When is the highest UV index in Palmela?
How high is the UV index in September in Palmela?
Average temperature in September
Palmela, Portugal
- Average high temperature in September: 26.7°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in September: 16.9°C
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.1°C).
Average pressure in September
Palmela, Portugal
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Palmela, Portugal
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is September (11.6km/h).
Average humidity in September
Palmela, Portugal
- Average humidity in September: 66%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Palmela, Portugal
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is November (55mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days in September
Palmela, Portugal
- Average rainfall days in September: 4.8 days
The month with the highest number of rainy days is November (13.3 days).
The month with the least rainy days is August (1.7 days).
Average daylight in September /
Average sunshine in September
Palmela, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Palmela, Portugal
- Average sunshine days in September: 23.9 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is November (14.9 days).
Average UV index in September
Palmela, Portugal
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in September
Palmela, Portugal
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Palmela, Portugal
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Palmela, Portugal
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