September weather forecastDemene, Latvia
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Demene, Latvia, with temperature in the range of an average high of 16.9°C (62.4°F) and an average low of 8.3°C (46.9°F).Temperature
As September commences, the average high-temperature shows a reduction, transitioning from an agreeable 22.8°C (73°F) in August to a refreshing 16.9°C (62.4°F). The nighttime temperature in Demene dips to a frosty 8.3°C (46.9°F) on average during September.Humidity
In Demene, the average relative humidity in September is 80%.Rainfall
In Demene, Latvia, in September, it is raining for 14.1 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, there are 147.9 rainfall days, and 443mm (17.44") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Demene, Latvia.Daylight
The average length of the day in September is 12h and 44min.On the first day of September, sunrise is at 06:19 and sunset at 20:07. On the last day of the month, sunrise is at 07:15 and sunset at 18:51 EEST.
Sunshine
The average sunshine in September in Demene is 7.4h.UV index
In Demene, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 in September translates into these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. 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
Demene, Latvia
- Average high temperature in September: 16.9°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (-3.5°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is January (-7.5°C).
Average pressure in September
Demene, Latvia
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is July (1012.2mbar).
Average wind speed in September
Demene, Latvia
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is December (14.9km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in September
Demene, Latvia
- Average humidity in September: 80%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Demene, Latvia
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (61mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Demene, Latvia
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (6.9 days).
Average snowfall in September
Demene, Latvia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (171mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Demene, Latvia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Demene, Latvia
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 0min).
Average sunshine days in September
Demene, Latvia
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in September
Demene, Latvia
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Demene, Latvia
- Average cloud cover in September: 50
The month with the most cloud cover is December (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Demene, Latvia
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





