Saint John’s in september: average Weather, Temperature and Climate
Weather in Saint John’s in september 2025
The weather in Saint John's in the month of september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
85°F
Moderate rain at times
46% of time
29%
12%
10%
Weather at 12pm
85°F
Moderate rain at times
34% of time
33%
21%
11%
Weather at 6pm
85°F
Moderate rain at times
40% of time
27%
18%
15%
Weather at 3am
85°F
45%
34%
10%
7%
Evolution of daily average temperature and precipitation in Saint John’s in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Saint John’s in september.
The climate of Saint John’s in september is tolerable
In september in Saint John's, the climate is wet (with 8.3in of precipitation over 10 days). It should be noted an improvement from the previous month since in august it receives an average of 8in of precipitation over 10 days.
The climate comfortable here the month of september. Temperatures are up to 85°F. On average, the recorded minimum temperature is 85°F. Thus, the mean temperature average on this month of september in Saint John's is 85°F. Note that these seasonal averages are in contrast with those observed in Saint John's in the month of september with a maximum record of 90°F in 2021 and a minimum record of 72°F in 2020. You can expect to have about 2 days with temperatures up to 86°F, or 7 of the month.
On this month of september, day length in Saint John's is generally 12:13. Sunrise is at 05:56 and sunset is at 18:09.
With a correct climate, this month is okay (but not good) to go in this city.
Seasonal average climate and temperature of Saint John’s in september
Check below seasonal norms These datas are generated from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 85°F | ||||
| Lowest temperature | 85°F | ||||
| Highest record temperature | 90°F (2021) | ||||
| Lowest record temperature | 72°F (2020) | ||||
| Number of days at +86°F | 2 day(s) (7%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 83°F | ||||
| Highest sea temperature | 87°F | ||||
| Wind | |||||
| Wind speed | 24km/h | ||||
| Wind temperature | 85°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 8.3in | ||||
| Number of days with rainfall | 10 day(s) (35%) | ||||
| Record daily rainfall | 7.4in (2017) | ||||
| Other climate data | |||||
| Humidity | 78% | ||||
| Visibility | 9.42km | ||||
| Cloud cover | 40% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:56 | ||||
| Time of sunset | 18:09 | ||||
| Length of day | 12:13 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Saint John’s in september 2024:
83°F to 85°F
85°F to 85°F
85°F to 85°F
85°F to 85°F
83°F to 85°F
85°F to 85°F
85°F to 85°F
85°F to 85°F
85°F to 85°F
83°F to 85°F
83°F to 85°F
85°F to 85°F
81°F to 85°F
85°F to 85°F
85°F to 85°F
85°F to 85°F
85°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
85°F to 85°F
85°F to 85°F
83°F to 85°F
85°F to 85°F
85°F to 86°F
85°F to 86°F
85°F to 86°F
85°F to 85°F
85°F to 85°F
83°F to 85°F
Map: other cities on Antigua and Barbuda in september
Cities near Saint John’s:
| Potters village in september | tolerable weather |
| Jolly Harbour in september | tolerable weather |
| All Saints in september | tolerable weather |
| Liberta in september | tolerable weather |
| English Harbour in september | tolerable weather |
| Codrington in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Saint John’s
perfect weather
good
tolerable
bad
very bad
Weather data for Saint John’s in september:
Weather data for Saint John’s for september are derived from an average of the weather forecast since 2009 in Saint John’s. There is a margin of error and these forecasts are to be considered as general information only. The weather in Saint John’s can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Saint John’s.