September weather forecastPreili, Latvia
September
Weather in September
September witnesses a significant shift in Preili's weather as it transitions from summer to autumn. The temperature begins to cool off when compared to the preceding months, indicating the start of a new weather pattern. Though rainfall is less frequent, it adds the perfect balance to the pleasant autumn days. The days are shorter than those in summer, but there is still enough sunlight to enjoy the outdoors. Indeed, September in Preili is all about welcoming the fall and the fascinating changes it brings along.Temperature
The start of September signals a decrease in the average high-temperature, transitioning from a pleasant 21.5°C (70.7°F) in August to a refreshing 16°C (60.8°F). The average low-temperature, in September, in Preili, is a frosty 7.8°C (46°F).Humidity
The average relative humidity in September is 83%.Rainfall
In Preili, during September, the rain falls for 13.7 days and regularly aggregates up to 31mm (1.22") of precipitation. In Preili, Latvia, during the entire year, the rain falls for 148.5 days and collects up to 482mm (18.98") of precipitation.Snowfall
June through September are months without snowfall in Preili.Daylight
In September, the average length of the day is 12h and 46min.On the first day of the month, sunrise is at 06:17 and sunset at 20:08. On the last day of September, in Preili, sunrise is at 07:15 and sunset at 18:50 EEST.
Sunshine
In Preili, the average sunshine in September is 6.9h.UV index
In September, the average daily maximum UV index in Preili is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Preili, Latvia
- Average high temperature in September: 16°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: 7.8°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
Preili, 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
Preili, Latvia
- Average wind speed in September: 13.1km/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
Preili, 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
Preili, 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
Preili, Latvia
- Average rainfall days in September: 13.7 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
Preili, 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
Preili, 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
Preili, Latvia
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 1h and 42min).
Average sunshine days in September
Preili, Latvia
- Average sunshine days in September: 13.5 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
Preili, 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
Preili, 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
Preili, 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).
