Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The commencement of September indicates a shift in the average high-temperature, receding from August's pleasant 21.5°C (70.7°F) to a comfortable 16.1°C (61°F). An average low-temperature of 8°C (46.4°F) is expected during September.Humidity
The average relative humidity in September is 83%.Rainfall
In Blonti, in September, it is raining for 13.8 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, in Blonti, there are 148.6 rainfall days, and 483mm (19.02") of precipitation is accumulated.Snowfall
In Blonti, Latvia, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 46min.On the first day of September, sunrise is at 06:13 and sunset at 20:04. On the last day of the month, sunrise is at 07:11 and sunset at 18:46 EEST.
Sunshine
In September, the average sunshine is 6.8h.UV index
In Blonti, Latvia, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Blonti, Latvia
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (-4.3°C).
- Average low temperature in September: 8°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-8.1°C).
Average pressure in September
Blonti, Latvia
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is October (1017.1mbar).
The month with the lowest atmospheric pressure is July (1012.1mbar).
Average wind speed in September
Blonti, Latvia
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Blonti, Latvia
- Average humidity in September: 83%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Blonti, Latvia
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is July (62mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Blonti, Latvia
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Blonti, Latvia
- Average snowfall in September: 0mm
The month with the highest snowfall is December (158mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Blonti, Latvia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blonti, Latvia
- Average daylight in September: 12h and 5min
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: 6h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The months with the least sunshine are February and December (Average sunshine: 1h and 42min).
Average sunshine days in September
Blonti, Latvia
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is August (14.2 days).
The month with the least sunshine days is December (6.7 days).
Average UV index in September
Blonti, 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
Blonti, Latvia
- Average cloud cover in September: 54
The month with the most cloud cover is December (Cloud cover 84).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Blonti, 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).
