Measurements:
°C
°F
CURRENT WEATHER
08:38
St John's
86°F
NW 16 mph
Feels like: 94°F
Precip: 7%
World Resorts Antigua and Barbuda St John's Weather

7 Day Weather Forecast

08.19
wed
DAY
88°F
W 17 mph
precip
8%
NIGHT
84°F
W 19 mph
precip
25%
08.20
thu
DAY
88°F
W 17 mph
precip
6%
NIGHT
84°F
W 20 mph
precip
24%
08.21
fri
DAY
88°F
W 19 mph
precip
24%
NIGHT
84°F
W 19 mph
precip
41%
08.22
sat
DAY
88°F
W 16 mph
precip
16%
NIGHT
84°F
W 19 mph
precip
23%
08.23
sun
DAY
88°F
W 19 mph
precip
21%
NIGHT
86°F
W 17 mph
precip
10%
08.24
mon
DAY
88°F
W 19 mph
precip
12%
NIGHT
84°F
SW 19 mph
precip
10%
08.25
tue
DAY
88°F
SW 19 mph
precip
10%
NIGHT
84°F
SW 10 mph
precip
34%

St John's Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for St John's was 28.8°F. The maximum and minimum values were 28.6°F and 29.0°F respectively.

St John's on the Weather Map

Best Time to Visit St John's
The most sunny months:
March 6 days
January 5 days
February 5 days
The most warm months:
September 89.5 °F
August 89.1 °F
October 88.9 °F
Warmest sea temperature:
September 88.5 °F
October 88.3 °F
August 87.6 °F
The most cold months:
February 83.0 °F
March 83.3 °F
January 83.6 °F
The most rainy months:
October 6 days
November 5 days
September 5 days
The most windy months:
July 17 mph
February 17 mph
January 17 mph
more details