The highest day temperature in May 2026 was 87°F. The lowest night temperature was 36°F. The average values for day and night temperatures during May were 62.7°F и 49.0°F respectivly.

The average sea surface temperature in May 2026 for Bristol was 57.4°F. The maximum and minimum values were 54.2°F and 65.4°F respectively.

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

Precipitation total in May for Bristol is 2.1 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 9.3 mph. It makes May one of the most windless months of the year for Bristol.

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 Bristol in May is 7.4 hours.