September
Weather in September
September in Saint-Joseph brings the first signs of spring as the sea temperature climbs back to 23.6°C (74.5°F). The weather narrative describes a slight escalation from August, signaling warmer months ahead. This upward trend in sea temperature develops through October. Daylight hours too, start stretching out, replacing the short winter days. The arrival of spring breathes a fresh surge of vitality into the city.
Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 23.6°C (74.5°F) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 25°C (77°F) and 28°C (82.4°F).)
On the first day of September, sunrise is at 06:26 and sunset at 18:08. On the last day of the month, sunrise is at 05:58 and sunset at 18:15 +04.
Sea temperature
September is the month with the coldest seawater in Saint-Joseph, with an average sea temperature of 23.6°C (74.5°F).Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 23.6°C (74.5°F) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 25°C (77°F) and 28°C (82.4°F).)
Daylight
In Saint-Joseph, Reunion, the average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:26 and sunset at 18:08. On the last day of the month, sunrise is at 05:58 and sunset at 18:15 +04.
Updated: Jul 22, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the month with the coldest sea water?
The month with the coldest seawater is September, with an average sea temperature of 23.6°C (74.5°F).
How warm is the water in September?
In September, the average sea temperature is 23.6°C (74.5°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.6°C (74.5°F) water may be enjoyable.
What is the average length of the day in September?
In September, the average day length is 11h and 59min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 06:26 and sunset at 18:08. On the last day of the month, sunrise is at 05:58 and sunset at 18:15 +04.
Average sea temperature in September
Saint-Joseph, Reunion
- Average sea temperature in September: 23.6°C
The best months for swimming (with the highest average sea temperature) are February and March (28.3°C).
The coldest month (with the lowest average sea temperature) is September (23.6°C).
Average daylight in September
Saint-Joseph, Reunion
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
