Swimming in Castries in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Castries in september 2025.
In september, according to seasonal norms, the sea temperature in Castries is:
Minimum: 84°F
Average: 86°F
Maximum: 87°F
Other useful seasonal weather averages in september:
- Outside temperature: 84°F to 87°F
- Most common weather: "Moderate rain at times"
- The wind blows at 18mph
- It rains a total of 6.2in, over 9 day(s).
Should we swim in Castries in september?
Yes! The water temperature in Castries in september is ideal
In september, swimming is ideal on the beaches around Castries! With water reaching 87°F at most and 86°F on average, spending time in the water is very pleasant.
Note also that in september, the climate is good with an average outside temperature of 86°F, 6.2in of precipitation (over 9 days) and 74.48 % humidity.
Water and normal seasonal temperatures in Castries in september
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 85°F | ||
| Wind speed | 11.8mph | ||
| Wind temperature | 85°F | ||
| Precipitation | 6.2in | ||
| Number of days of rain | 9 jour(s) (28%) | ||
| Humidity | 75% | ||
| Visibility in kilometers | 9.52km | ||
| Cloud cover | 42% | ||
| Our opinion | ideal swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Castries
Swim elsewhere in Saint Lucia in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Soufrière in september | 86°F | 88°F | ideal swimming |