September weather forecastCastelnou, Spain
September
Weather in September
September, the first month of the autumn in Castelnou, is still a warm month, with an average temperature fluctuating between 26.3°C (79.3°F) and 15.3°C (59.5°F).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's tropical 31.2°C (88.2°F) to a moderately hot 26.3°C (79.3°F). Castelnou experiences a consistent average temperature of 15.3°C (59.5°F) throughout the nights in September.Humidity
In Castelnou, the average relative humidity in September is 56%.Rainfall
In Castelnou, in September, during 7.7 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, in Castelnou, there are 92.5 rainfall days, and 261mm (10.28") of precipitation is accumulated.Snowfall
In Castelnou, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Castelnou, Spain, sunrise is at 07:28 and sunset at 20:34. On the last day of the month, sunrise is at 07:57 and sunset at 19:44 CEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
In Castelnou, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Castelnou, Spain
- Average high temperature in September: 26.3°C
The warmest month (with the highest average high temperature) is July (31.3°C).
The month with the lowest average high temperature is January (10.5°C).
- Average low temperature in September: 15.3°C
The months with the highest average low temperature are July and August (18.7°C).
The coldest month (with the lowest average low temperature) is February (3.4°C).
Average pressure in September
Castelnou, Spain
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Castelnou, Spain
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is February (18.5km/h).
The calmest month (with the lowest average wind speed) is September (13km/h).
Average humidity in September
Castelnou, Spain
- Average humidity in September: 56%
The months with the highest relative humidity are January and December (72%).
The months with the lowest relative humidity are July and August (50%).
Average rainfall in September
Castelnou, Spain
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is April (32mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in September
Castelnou, Spain
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is April (11.8 days).
The month with the least rainy days is December (4.2 days).
Average snowfall in September
Castelnou, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Castelnou, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Castelnou, 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 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in September
Castelnou, Spain
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is December (26.1 days).
The month with the least sunshine days is April (16.9 days).
Average UV index in September
Castelnou, Spain
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in September
Castelnou, Spain
- Average cloud cover in September: 17
The months with the most cloud cover are January and April (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Castelnou, 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).
