September weather forecastJūrmala, Latvia
September
Weather in September
September in Jūrmala signals the start of the autumn season. A definite dip in average temperatures is observed from August's 21.4°C (70.5°F) to 16.9°C (62.4°F), marking the gradual change from the warm summers. This month sees a fall in daylight hours as well, foreshadowing the incoming winter months. Despite the slight chill in the air, the weather remains primarily mild, with rainfall and cloud cover getting progressively more significant towards the end of the month. The descent into autumn continues into October, with further drops in temperature and daylight hours.Temperature
In September, the average high-temperature in Jūrmala, Latvia, marginally decreases from a pleasant 21.4°C (70.5°F) in August to a refreshing 16.9°C (62.4°F). September nights in Jūrmala are marked by an average temperature drop to a cool 10.7°C (51.3°F).Humidity
In Jūrmala, the average relative humidity in September is 78%.Rainfall
In Jūrmala, in September, during 13.2 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Jūrmala, Latvia, during the entire year, the rain falls for 152.3 days and collects up to 437mm (17.2") of precipitation.Snowfall
In Jūrmala, snow does not fall in May through September.Daylight
The average length of the day in September in Jūrmala is 12h and 46min.On the first day of the month, sunrise is at 06:28 and sunset at 20:21. On the last day of September, in Jūrmala, sunrise is at 07:28 and sunset at 19:02 EEST.
Sunshine
The average sunshine in September in Jūrmala, Latvia, is 7.8h.UV index
In Jūrmala, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jūrmala, Latvia
- Average high temperature in September: 16.9°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is January (-4.4°C).
Average pressure in September
Jūrmala, Latvia
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is October (1016.1mbar).
The month with the lowest atmospheric pressure is December (1011.3mbar).
Average wind speed in September
Jūrmala, Latvia
- Average wind speed in September: 15.5km/h
The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest month (with the lowest average wind speed) is May (13.3km/h).
Average humidity in September
Jūrmala, Latvia
- Average humidity in September: 78%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Jūrmala, Latvia
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Jūrmala, Latvia
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in September
Jūrmala, Latvia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (101mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Jūrmala, Latvia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jūrmala, Latvia
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 7h and 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in September
Jūrmala, Latvia
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (8.1 days).
Average UV index in September
Jūrmala, Latvia
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Jūrmala, Latvia
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Jūrmala, Latvia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
