October weather forecastSaint-Denis, Reunion

October
Weather in October
October provides an upward turn to the weather cycle in Saint-Denis. A slight increase in temperatures is observed, while the amount of rainfall remains relatively low with only 43mm (1.69") recorded. The warmth returns slowly, and the city readopts the lively, outdoor spirit characteristic of its hotter months. A slight increase in daylight hours serves to brighten the city ambiance as it transitions to the final months of the year.Temperature
During October, Saint-Denis observes a subtle ascent to a still warm 26.8°C (80.2°F) from September's 25.8°C (78.4°F) in the average high-temperature. Nighttime temperature in Saint-Denis dips to a mean of 19.6°C (67.3°F) during October.Rainfall
The month with the least rainfall is October, when the rain falls for 7.1 days and typically collects 43mm (1.69") of precipitation.Sea temperature
In Saint-Denis, the average seawater temperature in October is 24.3°C (75.7°F).Note: The allure of a swim in 24.3°C (75.7°F) waters can be influenced by your feelings towards the cold, today's sunshine, the wind's touch, and the ambient warmth. To put it in perspective, Olympic standards demand water temperatures of 25°C (77°F) to 28°C (82.4°F).
Daylight
In Saint-Denis, the average length of the day in October is 12h and 35min.On the first day of October in Saint-Denis, sunrise is at 05:58 and sunset at 18:16. On the last day of the month, sunrise is at 05:35 and sunset at 18:27 +04.
Sunshine
The months with the least sunshine are January and October, with an average of 6.8h of sunshine.UV index
In Saint-Denis, the average daily maximum UV index in October is 11. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 11 in October translates into this advice:
Employ every crucial safety step. Those with fair skin could experience burns in a matter of minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Sunscreen with a sun protection factor of no less than 30 should be used liberally and reapplied frequently on overcast days, including after every swim or outdoor activity. Caution! The mirror effect of sand and water ups the UV radiation strength.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Saint-Denis, Reunion
- Average high temperature in October: 26.8°C
The warmest months (with the highest average high temperature) are January and February (30.1°C).
The month with the lowest average high temperature is July (25.2°C).
- Average low temperature in October: 19.6°C
The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is August (18°C).
Average rainfall in October
Saint-Denis, Reunion
- Average rainfall in October: 43.4mm
The wettest month (with the highest rainfall) is February (351mm).
The driest month (with the least rainfall) is October (43.4mm).
Average rainfall days in October
Saint-Denis, Reunion
- Average rainfall days in October: 7.1 days
The month with the highest number of rainy days is February (14.3 days).
The month with the least rainy days is November (5.9 days).
Average sea temperature in October
Saint-Denis, Reunion
- Average sea temperature in October: 24.3°C
The best month for swimming (with the highest average sea temperature) is March (28.5°C).
The coldest months (with the lowest average sea temperature) are August and September (23.8°C).
Average daylight in October /
Average sunshine in October
Saint-Denis, Reunion
- Average daylight in October: 12h and 36min
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).
- Average sunshine in October: 6h and 48min
The months with the most sunshine are April and December (Average sunshine: 7h and 24min).
The months with the least sunshine are January and October (Average sunshine: 6h and 48min).
Average UV index in October
Saint-Denis, Reunion
- Average UV index in October: 11
The months with the highest UV index are January, February, March, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 6).





