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 arrival of September coincides with an average high-temperature of a still moderately hot 25.7°C (78.3°F), indicating a minimal shift from August's 27.8°C (82°F). Aljezur experiences a nighttime temperature average of 18°C (64.4°F) during September.Humidity
In September, the average relative humidity is 68%.Rainfall
In September, the rain falls for 3.9 days. Throughout September, 5mm (0.2") of precipitation is accumulated. In Aljezur, Portugal, during the entire year, the rain falls for 85.4 days and collects up to 163mm (6.42") of precipitation.Daylight
In September, the average length of the day in Aljezur, Portugal, is 12h and 25min.On the first day of September, sunrise is at 07:06 and sunset at 20:03. On the last day of the month, sunrise is at 07:30 and sunset at 19:19 WEST.
Sunshine
In September, the average sunshine in Aljezur is 9.5h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Aljezur in September?
What is the average humidity in September in Aljezur?
How many days does it rain in September in Aljezur?
How many hours of daylight does Aljezur have in September?
When is the sunrise / sunset in September in Aljezur?
How many hours of sunshine does Aljezur have in September?
What are the months with the highest UV index in Aljezur?
What is the UV index intensity in September in Aljezur?
Average temperature in September
Aljezur, Portugal
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in September: 18°C
The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (9.2°C).
Average pressure in September
Aljezur, Portugal
- Average pressure in September: 1016.7mbar
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
Aljezur, Portugal
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is September (11.3km/h).
Average humidity in September
Aljezur, Portugal
- Average humidity in September: 68%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Aljezur, Portugal
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is November (25mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Aljezur, Portugal
- Average rainfall days in September: 3.9 days
The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is August (1.5 days).
Average daylight in September /
Average sunshine in September
Aljezur, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Aljezur, Portugal
- Average sunshine days in September: 24.3 days
The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in September
Aljezur, 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 month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Aljezur, Portugal
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Aljezur, 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).
Aljezur, Portugal
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