September weather forecastCrestuma, Portugal
September
Weather in September
September, the first month of the autumn in Crestuma, is also a moderately hot month, with temperature in the range of an average low of 15°C (59°F) and an average high of 25.3°C (77.5°F).Temperature
The transition into September is marked with an average high-temperature of a still warm 25.3°C (77.5°F), showing an insignificant shift from August's 26.6°C (79.9°F). September's nights observe an average temperature of 15°C (59°F).Humidity
September is the least humid month, with an average relative humidity of 65%.Rainfall
In September, in Crestuma, the rain falls for 6.8 days. Throughout September, 33mm (1.3") of precipitation is accumulated. In Crestuma, during the entire year, the rain falls for 126.3 days and collects up to 777mm (30.59") of precipitation.Daylight
In Crestuma, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:01 and sunset at 20:06. On the last day of September, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Crestuma, Portugal
- Average high temperature in September: 25.3°C
The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (12.7°C).
- Average low temperature in September: 15°C
The months with the highest average low temperature are July and August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).
Average pressure in September
Crestuma, Portugal
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Crestuma, Portugal
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is February (10.3km/h).
The calmest month (with the lowest average wind speed) is September (7.9km/h).
Average humidity in September
Crestuma, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Crestuma, Portugal
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is November (124mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Crestuma, Portugal
- Average rainfall days in September: 6.8 days
The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (5 days).
Average daylight in September /
Average sunshine in September
Crestuma, Portugal
- Average daylight in September: 12h and 30min
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 18min).
- 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 54min).
Average sunshine days in September
Crestuma, Portugal
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in September
Crestuma, 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, March, November and December (UV index 3).
Average cloud cover in September
Crestuma, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Crestuma, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
