September weather forecastHernani, Spain
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Hernani, Spain, with temperature in the range of an average low of 15.5°C (59.9°F) and an average high of 21.1°C (70°F).Temperature
The transition into September reveals an average high-temperature of an agreeable 21.1°C (70°F), mirroring a close resemblance to August. An average low-temperature of 15.5°C (59.9°F) is noted in Hernani during the month of September.Humidity
In Hernani, Spain, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall in Hernani is September, when the rain falls for 15.5 days and typically collects 44mm (1.73") of precipitation.Snowfall
April through November are months without snowfall in Hernani, Spain.Daylight
In Hernani, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 07:32 and sunset at 20:42. On the last day of September, in Hernani, sunrise is at 08:04 and sunset at 19:50 CEST.
Sunshine
The average sunshine in September is 8.3h.UV index
May through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hernani, Spain
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (9.9°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).
Average pressure in September
Hernani, Spain
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Hernani, Spain
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is November (16.8km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Hernani, Spain
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Hernani, Spain
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (121mm).
The driest month (with the least rainfall) is September (44mm).
Average rainfall days in September
Hernani, Spain
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is October (14.8 days).
Average snowfall in September
Hernani, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Hernani, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 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
Hernani, Spain
- 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 0min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 48min).
Average sunshine days in September
Hernani, Spain
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is October (13.6 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in September
Hernani, Spain
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Hernani, Spain
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Hernani, Spain
- Average visibility in September: 10km
The months with the highest visibility are February, March, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, April, May and November (9km).
