Measurements:
°C
°F
CURRENT WEATHER
19:50
Mystic
58°F
SE 17 mph
Feels like: 54°F
Precip: 3%
World Resorts USA Mystic Weather

7 Day Weather Forecast

10.05
mon
DAY
66°F
E 17 mph
precip
6%
NIGHT
56°F
SE 17 mph
precip
3%
10.06
tue
DAY
56°F
SE 16 mph
precip
1%
NIGHT
52°F
SE 11 mph
precip
2%
10.07
wed
DAY
62°F
NE 12 mph
precip
2%
NIGHT
64°F
NE 22 mph
precip
8%
10.08
thu
DAY
68°F
NE 19 mph
precip
8%
NIGHT
62°F
S 9 mph
precip
4%
10.09
fri
DAY
64°F
SE 14 mph
precip
2%
NIGHT
62°F
E 12 mph
precip
4%
10.10
sat
DAY
62°F
SE 13 mph
precip
3%
NIGHT
56°F
SW 7 mph
precip
12%
10.11
sun
DAY
64°F
N 14 mph
precip
15%
NIGHT
62°F
N 10 mph
precip
46%

Mystic Sea Water Temperature in October, °F

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Mystic was 18.0°F. The maximum and minimum values were 15.7°F and 20.4°F respectively.

Mystic on the Weather Map

Best Time to Visit Mystic
The most sunny months:
November 16 days
October 14 days
December 14 days
The most warm months:
July 83.3 °F
August 81.6 °F
June 76.6 °F
Warmest sea temperature:
August 72.3 °F
July 70.6 °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
more details