September weather forecastGrigiškės, Lithuania
September
Weather in September
September signals the onset of autumn in Grigiškės. The month begins to cool from August's warmth with an average high temperature dipping to 17.1°C (62.8°F). Days gradually shorten and rainfall becomes more frequent as autumn progresses. Enjoy the occasional sunny days as they intersperse with rainfall. As September progresses, anticipate chillier days and more cloud cover.Temperature
September's arrival in Grigiškės correlates with a reduction in the average high-temperature, down from a pleasant 22.6°C (72.7°F) in August to a refreshing 17.1°C (62.8°F). Grigiškės observes an average nighttime low-temperature of 8.6°C (47.5°F) during the month of September.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 8.6 days and typically collects 15mm (0.59") of precipitation.Snowfall
In Grigiškės, snow does not fall in June through September.Daylight
The average length of the day in September in Grigiškės is 12h and 43min.On the first day of the month, sunrise is at 06:27 and sunset at 20:11. On the last day of September, in Grigiškės, Lithuania, sunrise is at 07:20 and sunset at 18:57 EEST.
Sunshine
In September, the average sunshine in Grigiškės is 7.7h.UV index
In Grigiškės, Lithuania, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during September translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grigiškės, Lithuania
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (22.9°C).
The month with the lowest average high temperature is January (-3°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is January (-7.1°C).
Average pressure in September
Grigiškės, Lithuania
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1012.6mbar).
Average wind speed in September
Grigiškės, Lithuania
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Grigiškės, Lithuania
- Average humidity in September: 80%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Grigiškės, Lithuania
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is July (38mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in September
Grigiškės, Lithuania
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Grigiškės, Lithuania
- Average snowfall in September: 0mm
The month with the highest snowfall is January (162mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grigiškės, Lithuania
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grigiškės, Lithuania
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 0min).
Average sunshine days in September
Grigiškės, Lithuania
- Average sunshine days in September: 20.6 days
The month with the most sunshine days is September (20.6 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in September
Grigiškės, Lithuania
- 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
Grigiškės, Lithuania
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Grigiškės, Lithuania
- 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).
