Latvia is located in a temperate climate zone; the weather is dictated by air masses from the Atlantic, the Baltic Sea and the Gulf of Riga. The climate is characterised by high and low pressure changes and a considerably large amount of precipitation.

Weather conditions are rather inconsistent and hard to forecast. There is precipitation approximately 180 days of the year, on average every other day (taking into consideration that it rains rarely during summer, but more frequently during autumn, and that it tends to snow several days consecutively in winter), with the average amount of precipitation around 500-800 mm.

Summers are sunny and warm with an average temperature of +19o C; July and August are the hottest months.
Spring and autumn weather conditions vary and tend to be rather damp with an average temperature of +10o C. 
There is usually snow in winter from December to March; the coldest winter month is January with an average temperature of -6o C. 

There are 6-7 hours of daylight during winter in Latvia, but 17-18 hours of daylight in June depending on the position of the sun over the horizon.

Differences in Air Temperature Indicators Characteristic to Latvia's Regions