The highest day temperature in May 2025 was 59°F. The lowest night temperature was 35°F. The average values for day and night temperatures during May were 48.4°F и 43.7°F respectivly.

The average sea surface temperature in May 2025 for Ventspils was 46.7°F. The maximum and minimum values were 43.2°F and 51.8°F respectively.

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation total in May for Ventspils is 1.4 in. It makes may one of the least rainy months of the year.

The average wind speed in May is 10.4 mph. It makes May the most windless month of the year for Ventspils.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ventspils in May is 10.9 hours.