September weather forecastPal, Andorra
September
Weather in September
September signals a departure from the warm months to a more temperate phase. The city experiences a substantial drop in its monthly high temperature to 17°C (62.6°F). Along with this, an increase in cloud coverage marks the descent into the equinox. The burgeoning autumn season brings forth a palette of vibrant hues spread across the city's foliage. September's weather bridges the gap between summer and the growing chill of the succeeding months.Temperature
September indicates a minor shift in the average high-temperature, from August's agreeable 21.3°C (70.3°F) to an enjoyable 17°C (62.6°F). Pal experiences an average nighttime temperature of 6.4°C (43.5°F) in the month of September.Humidity
In Pal, the average relative humidity in September is 75%.Rainfall
In Pal, in September, during 14.1 rainfall days, 46mm (1.81") of precipitation is typically accumulated. In Pal, Andorra, during the entire year, the rain falls for 141 days and collects up to 795mm (31.3") of precipitation.Snowfall
January through June, August through December are months with snowfall. In September, it is snowing for 0.4 days. Throughout September, 35mm (1.38") of snow is accumulated. In Pal, during the entire year, snow falls for 101 days and aggregates up to 2823mm (111.14") of snow.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 07:19 and sunset at 20:28. On the last day of the month, sunrise is at 07:50 and sunset at 19:37 CEST.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 3 in September transforms into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pal, Andorra
- Average high temperature in September: 17°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The months with the lowest average high temperature are January and February (2.3°C).
- Average low temperature in September: 6.4°C
The month with the highest average low temperature is August (9.7°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).
Average pressure in September
Pal, Andorra
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is December (1021.4mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Pal, Andorra
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is February (9.7km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Pal, Andorra
- Average humidity in September: 75%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in September
Pal, Andorra
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is May (90mm).
The driest month (with the least rainfall) is February (36mm).
Average rainfall days in September
Pal, Andorra
- Average rainfall days in September: 14.1 days
The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Pal, Andorra
- Average snowfall in September: 35mm
The month with the highest snowfall is March (501mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Pal, Andorra
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is March (17.1 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in September /
Average sunshine in September
Pal, Andorra
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Pal, Andorra
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (6.6 days).
Average UV index in September
Pal, Andorra
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Pal, Andorra
- Average cloud cover in September: 28
The month with the most cloud cover is April (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Pal, Andorra
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January, February, March, April and November (8km).
