September weather forecastAltafulla, Spain
September
Weather in September
September, the first month of the autumn in Altafulla, is still a warm month, with an average temperature ranging between min 19.9°C (67.8°F) and max 24.5°C (76.1°F).Temperature
During September, Altafulla observes a subtle ascent to a still warm 24.5°C (76.1°F) from August's 27.3°C (81.1°F) in the average high-temperature. Altafulla maintains a near steady average temperature of 19.9°C (67.8°F) during the nights of September, demonstrating little drop from daytime highs.Humidity
In Altafulla, the average relative humidity in September is 69%.Rainfall
In Altafulla, Spain, in September, it is raining for 13.2 days, with typically 39mm (1.54") of accumulated precipitation. In Altafulla, during the entire year, the rain falls for 114.8 days and collects up to 354mm (13.94") of precipitation.Snowfall
In Altafulla, snow does not fall in April through December.Sea temperature
In Altafulla, the average seawater temperature in September is 23.9°C (75°F).Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.9°C (75°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)
Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 07:21 and sunset at 20:27. On the last day of September, sunrise is at 07:50 and sunset at 19:37 CEST.
Sunshine
In Altafulla, the average sunshine in September is 9.3h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in Altafulla. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Be on guard! The reflective nature of sand and water boosts UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altafulla, Spain
- Average high temperature in September: 24.5°C
The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (12.5°C).
- Average low temperature in September: 19.9°C
The month with the highest average low temperature is August (22.4°C).
The coldest months (with the lowest average low temperature) are January and February (7.8°C).
Average pressure in September
Altafulla, Spain
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Altafulla, Spain
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is January (17.7km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in September
Altafulla, Spain
- Average humidity in September: 69%
The month with the highest relative humidity is April (72%).
The months with the lowest relative humidity are February, June and November (68%).
Average rainfall in September
Altafulla, Spain
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days in September
Altafulla, Spain
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is September (13.2 days).
The month with the least rainy days is December (5.5 days).
Average snowfall in September
Altafulla, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Altafulla, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Altafulla, Spain
- Average sea temperature in September: 23.9°C
The best month for swimming (with the highest average sea temperature) is August (24.9°C).
The coldest month (with the lowest average sea temperature) is February (13.2°C).
Average daylight in September /
Average sunshine in September
Altafulla, Spain
- 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 18min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Altafulla, Spain
- Average sunshine days in September: 13 days
The month with the most sunshine days is December (24.4 days).
The month with the least sunshine days is September (13 days).
Average UV index in September
Altafulla, Spain
- 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
Altafulla, Spain
- Average cloud cover in September: 21
The month with the most cloud cover is April (Cloud cover 29).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in September
Altafulla, Spain
- 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).
