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
The introduction of September sees an average high-temperature of a still warm 25.5°C (77.9°F), hardly deviating from August. September witnesses an average low-temperature hovering around a moderate 15.5°C (59.9°F).Humidity
The least humid month in Alcobaça is September, with an average relative humidity of 70%.Rainfall
In September, the rain falls for 5.4 days. Throughout September, 15mm (0.59") of precipitation is accumulated. In Alcobaça, during the entire year, the rain falls for 103.3 days and collects up to 370mm (14.57") of precipitation.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Alcobaça, sunrise is at 07:04 and sunset at 20:06. On the last day of the month, sunrise is at 07:31 and sunset at 19:19 WEST.
Sunshine
In Alcobaça, Portugal, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Alcobaça is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Heed the precautions - It is counselled to guard against solar damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Alcobaça?
What is the least humid month in Alcobaça?
What is the average humidity in September in Alcobaça?
How much does it rain in Alcobaça in September?
How many hours of daylight does Alcobaça have in September?
When is the sunrise / sunset in September in Alcobaça?
How many hours of sunshine does Alcobaça have in September?
What is the UV index intensity in September in Alcobaça?
Average temperature in September
Alcobaça, Portugal
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (13.7°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (7.9°C).
Average pressure in September
Alcobaça, Portugal
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Alcobaça, Portugal
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is September (11.9km/h).
Average humidity in September
Alcobaça, Portugal
- Average humidity in September: 70%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (70%).
Average rainfall in September
Alcobaça, Portugal
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Alcobaça, Portugal
- Average rainfall days in September: 5.4 days
The month with the highest number of rainy days is November (13.4 days).
The month with the least rainy days is August (2.4 days).
Average daylight in September /
Average sunshine in September
Alcobaça, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Alcobaça, Portugal
- Average sunshine days in September: 24.4 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is November (15.7 days).
Average UV index in September
Alcobaça, 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, November and December (UV index 3).
Average cloud cover in September
Alcobaça, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 24).
Average visibility in September
Alcobaça, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, June and December (10km).
The months with the lowest visibility are January, March, April, May, July, August, September, October and November (9km).
