September weather forecastOlaine, Latvia
September weather for Olaine, Latvia: In Olaine, Latvia, in September, it is raining for 11.6 days, with typically 27mm (1.06") of accumulated precipitation. On the last day of September, in Olaine, sunrise is at 07:26 and sunset at 19:01 EEST.
September
Weather in September
September acts as a bridge between summer and autumn in Olaine, Latvia. Following the warm August, temperatures begin their downward trend. October promises a sharper dip into autumnal weather. Significant cloud cover often softens the sunlight's intensity, while prolonged daylight hours persist, albeit in gradual decrease. With the onset of fall, the cityscape transitions into a palette of oranges and browns, enhancing the beauty and charm of Olaine.Temperature
Olaine's weather changes with the onset of September, slightly falling from an agreeable 22.3°C (72.1°F) in August to a refreshing 17.2°C (63°F). Olaine registers a consistent average low-temperature of 9.5°C (49.1°F) during September.Humidity
In September, the average relative humidity is 79%.Rainfall
In Olaine, in September, during 11.6 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 139.1 rainfall days, and 347mm (13.66") of precipitation is accumulated.Snowfall
In Olaine, snow does not fall in May through September.Daylight
In Olaine, the average length of the day in September is 12h and 46min.On the first day of the month, sunrise is at 06:28 and sunset at 20:20. On the last day of September, in Olaine, sunrise is at 07:26 and sunset at 19:01 EEST.
Sunshine
In Olaine, the average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September in Olaine is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olaine, Latvia
- Average high temperature in September: 17.2°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 (-1.9°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (13.4°C).
The coldest month (with the lowest average low temperature) is January (-5.5°C).
Average pressure in September
Olaine, Latvia
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is October (1016.3mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in September
Olaine, Latvia
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Olaine, Latvia
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Olaine, Latvia
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Olaine, Latvia
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Olaine, Latvia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (83mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Olaine, Latvia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Olaine, Latvia
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Olaine, Latvia
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in September
Olaine, 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, November and December (UV index 1).
Average cloud cover in September
Olaine, Latvia
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Olaine, Latvia
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is February (7km).





