Castries in september: average Weather, Temperature and Climate
Weather in Castries in september 2025
The weather in Castries in the month of september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 7
Weather at 6am
85°F
Partly Cloudy
36% of time
33%
13%
9%
Weather at 12pm
88°F
Moderate rain at times
39% of time
26%
21%
13%
Weather at 6pm
85°F
Moderate rain at times
40% of time
25%
18%
12%
Weather at 3am
83°F
47%
26%
12%
10%
Evolution of daily average temperature and precipitation in Castries in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Castries in september.
The climate of Castries in september is good
the weather in Castries in september is wet (with 6.2in of rainfall over 9 days). It should be noted an improvement from the previous month since in august it receives an average of 6.6in of precipitation over 10 days.
The climate quite good in this city this month. The high seasonal norm is 88°F. The seasonal minimum is 85°F. Thus, the mean temperature average on this month of september in Castries is 86°F. Note that seasonal normals are in contrast with those observed in Castries in september with a maximum record of 95°F in 2011 and a minimum record of 79°F in 2016. You can expect to have 86°F or more for all the month.
On this month of september, day length in Castries is generally 12:12. Sunrise is at 05:53 and sets at 18:05.
With a correct climate, the month of september is okay (but not good) to go there.
Seasonal average climate and temperature of Castries in september
Check below seasonal norms These statistics are compiled from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 86°F | ||||
| Highest temperature | 88°F | ||||
| Lowest temperature | 85°F | ||||
| Highest record temperature | 95°F (2011) | ||||
| Lowest record temperature | 79°F (2016) | ||||
| Number of days at +86°F | 24 day(s) (80%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 84°F | ||||
| Highest sea temperature | 87°F | ||||
| Wind | |||||
| Wind speed | 19km/h | ||||
| Wind temperature | 85°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 6.2in | ||||
| Number of days with rainfall | 9 day(s) (28%) | ||||
| Record daily rainfall | 4.1in (2016) | ||||
| Other climate data | |||||
| Humidity | 75% | ||||
| Visibility | 9.52km | ||||
| Cloud cover | 42% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:53 | ||||
| Time of sunset | 18:05 | ||||
| Length of day | 12:12 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Castries in september 2024:
81°F to 83°F
81°F to 83°F
77°F to 81°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 85°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
83°F to 85°F
81°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
Map: other cities in Saint Lucia in september
Cities near Castries:
| Anse-La-Raye in september | good weather |
| Gros Islet in september | good weather |
| Dennery in september | good weather |
| Praslin Bay in september | good weather |
| Soufrière in september | good weather |
| Micoud in september | good weather |
| Choiseul in september | good weather |
| Laborie in september | good weather |
| Vieux Fort in september | good weather |
Click over cities on the map for information about the weather in september.
Castries
perfect weather
good
tolerable
bad
very bad
Weather data for Castries in september:
Weather data for Castries for september are derived from an average of the weather forecast since 2009 in Castries. There is a margin of error and these forecasts are to be considered as general information only. The weather in Castries 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 Castries.