Sea Temperature in Grand-Case in September

Complete information on the sea temperature range in the Caribbean Sea in Grand-Case in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Grand-Case. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Grand-Case in September

28°C

MINIMUN

29.5°C

AVERAGE

31°C

MAXIMUM

Historical Data of Water Temperature in September in Grand-Case

Water Temperature Chart for Caribbean Sea in Grand-Case in September

Sea Temperature Table in Grand-Case in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	29°C	29°C	29°C	29.0°C
Sep 2	29°C	29°C	28°C	28.8°C
Sep 3	29°C	28°C	30°C	29.3°C
Sep 4	29°C	31°C	30°C	29.8°C
Sep 5	29°C	31°C	30°C	29.8°C
Sep 6	29°C	31°C	29°C	29.8°C
Sep 7	29°C	29°C	30°C	29.5°C
Sep 8	29°C	29°C	29°C	29.3°C
Sep 9	29°C	31°C	31°C	30.0°C
Sep 10	29°C	30°C	31°C	30.0°C
Sep 11	29°C	29°C	29°C	29.3°C
Sep 12	30°C	28°C	31°C	29.8°C
Sep 13	29°C	29°C	31°C	29.8°C
Sep 14	29°C	31°C	31°C	30.0°C
Sep 15	29°C	29°C	30°C	29.5°C
Sep 16	29°C	29°C	30°C	29.3°C
Sep 17	29°C	30°C	31°C	30.0°C
Sep 18	29°C	29°C	29°C	29.0°C
Sep 19	29°C	30°C	29°C	29.5°C
Sep 20	29°C	30°C	31°C	29.8°C
Sep 21	29°C	30°C	28°C	29.3°C
Sep 22	30°C	28°C	28°C	29.3°C
Sep 23	29°C	29°C	30°C	29.8°C
Sep 24	30°C	29°C	29°C	29.5°C
Sep 25	30°C	28°C	31°C	29.8°C
Sep 26	30°C	30°C	29°C	30.0°C
Sep 27	30°C	30°C	31°C	30.5°C
Sep 28	30°C	28°C	29°C	29.3°C
Sep 29	30°C	31°C	28°C	29.8°C

Grand-Case Climate and Swimming Opportunities in September

31°C

Average Day Air Temperature

25°C

Average Night Air Temperature

110 mm

Precipitation Amount per Month

13 days

Number of Rainy Days

12 hrs

Daylight
per Day

8 hrs

Sunshine
per Day

16 km/h

Average Wind Speed

77%

Average
humidity

Grand-Case lies within in Sint Maarten. The average daytime temperature in Grand-Case in September is 88°F (31°C), while the nighttime average is 77°F (25°C). There are typically 13 rainy days during the month, with a total precipitation of 4.3 inches (110 mm). The daylight duration in September in Grand-Case is 12 hours, with an average of 8 hours of sunshine per day. The average wind speed in September is 10 mph (16 km/h), and the humidity level is around 77%.

The water temperature in Grand-Case in September ranges from 82°F to 86°F (28°C to 30°C). At the beginning of the month, the average temperature is around 84°F (29°C), shifting to 86°F (30°C) by mid-September and reaching 86°F (30°C) in the last ten days. Overall, the average sea temperature in Grand-Case for September is 86°F (30°C). The water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Grand-Case

What is the sea temperature in Grand-Case in September?

The water temperature in the Caribbean Sea in Grand-Case in September ranges from 82°F to 86°F (28°C to 30°C).

Is it possible to swim in the Caribbean Sea in Grand-Case in September?

The average sea temperature in Grand-Case in September is 86°F (30°C), and the air temperature is 88°F (31°C), so the water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.