Measurements:
°C
°F
Mystic
96°F
E 13 mph
Feels like: 108°F
Precip: 3%
World Resorts USA Mystic Weather May Weather in Mystic

Mystic Weather: May

Average Day Temperature: 65.2°F
Average Night Temperature: 52.0°F
Sea Water Temperature: 51.8°F
Number of Sunny Days: 10 days
Sunshine Hours: 14.0 - 14.9 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.1 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 84°F. The lowest night temperature was 41°F. The average values for day and night temperatures during May were 66.1°F и 52.4°F respectivly.

Mystic Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Mystic was 50.9°F. The maximum and minimum values were 46.0°F and 56.2°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Mystic is 1.1 in.

Wind Speed in May, mph

The average wind speed in May is 8.5 mph.

Average Sunny Hours Per Day

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 Mystic in May is 7.6 hours.

Best Time to Visit Mystic
The most sunny months:
November 16 days
October 14 days
September 14 days
The most warm months:
July 82.8 °F
August 81.2 °F
June 76.6 °F
Warmest sea temperature:
August 72.2 °F
July 70.7 °F
September 70.2 °F
The most cold months:
January 34.7 °F
February 35.9 °F
December 40.1 °F
The most rainy months:
October 4 days
July 3 days
November 3 days
The most windy months:
January 10 mph
December 10 mph
March 10 mph

Mystic on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Mystic
Local time: 14:15
15 jul, wednesday
1500 96°F
E
13 mph
1800 90°F
SE
9 mph
2100 80°F
SE
7 mph
16 jul, thursday
0000 74°F
S
6 mph
0300 72°F
SE
2 mph
0600 72°F
SE
3 mph
0900 78°F
E
4 mph
1200 84°F
E
6 mph