Long-term weather forecast
Long-term weather forecast

September weather forecast and Climate
Vilnius, Lithuania

  • The average high temperature in September: 16.4°C

The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (-3.5°C).

  • The average low temperature in September: 7.7°C

The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-8.7°C).

  • The average humidity in September: 78.5%

The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is April (65.5%).

  • The average rainfall in September: 65.2mm

The wettest month (with the highest rainfall) is July (79.3mm).
The driest month (with the lowest rainfall) is February (34.4mm).

  • The average rainfall days in September: 9.7 days

The month with the highest number of rainy days is January (21.7 days).
The month with the lowest number of rainy days is September (9.7 days).

  • The average daylight in September: 13h

Months with the longest days are June and July (Average daylight: 17h).
The month with shortest days is December (Average daylight: 7h).

  • The average sunshine in September: 4.7h

The month with most sunshine is May (Average sunshine: 7.8h).
The month with least sunshine is December (Average sunshine: 0.8h).

  • The average UV index in September: 3

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January and December (UV index 0).