September weather forecastKalupe, Latvia
September
Weather in September
September signifies the start of the autumn season in Kalupe. Even though the temperatures start to drop, the weather remains generally pleasant. Colored leaves, crisp air, and clear skies make the landscape picture-perfect. As autumn progresses, snow makes an appearance with an average snowfall of 12mm (0.47") after the summer break. Locals await the beautiful transition from summer to autumn, known for its breathtaking colors.Temperature
As September begins in Kalupe, there is a decrease in the average high-temperature, falling from an agreeable 22.8°C (73°F) in August to a refreshing 16.9°C (62.4°F). During the month of September, the nighttime temperature falls to an average of 8.3°C (46.9°F).Humidity
In Kalupe, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 14.1 days. Throughout September, 32mm (1.26") of precipitation is accumulated. Throughout the year, in Kalupe, Latvia, there are 147.9 rainfall days, and 443mm (17.44") of precipitation is accumulated.Snowfall
In Kalupe, snow does not fall in June through September.Daylight
In Kalupe, the average length of the day in September is 12h and 45min.On the first day of the month, sunrise is at 06:19 and sunset at 20:08. On the last day of September, sunrise is at 07:15 and sunset at 18:51 EEST.
Sunshine
The average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 3 transforms into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, Latvia
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 30min).
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
Kalupe, 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
Kalupe, 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
Kalupe, 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
Kalupe, 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).





