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Monthly climate in Saint-Denis, Réunion

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Saint-Denis features a tropical savanna climate (As).Temperatures typically range between 19 °C (66 °F) and 24 °C (75 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 29 °C (84 °F).The average annual precipitation amounts to about 1361 mm (53.6 inches) and receives 232 rainy days on the 1 mm (0.04 inches) threshold annually.Saint-Denis enjoys an average of 4034 hours of sunshine throughout the year, and daylight varies from 10 hours 52 minutes to 13 hours 21 minutes per day.

Monthly average temperatures in Saint-Denis, Réunion §

The warmest months in Saint-Denis are January, February and March, with daily mean temperatures ranging from 24 to 24 °C (75 - 75 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 19 to 19 °C (66 - 67 °F) throughout the day. On average each year, Saint-Denis experiences 111 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saint-Denis, Réunion.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 29°C
(84°F)		 28°C
(83°F)		 29°C
(84°F)		 28°C
(82°F)		 25°C
(78°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 25°C
(78°F)		 27°C
(80°F)		 28°C
(83°F)
Mean maximum 28°C
(83°F)		 27°C
(82°F)		 27°C
(82°F)		 26°C
(80°F)		 25°C
(77°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 24°C
(75°F)		 25°C
(77°F)		 26°C
(78°F)		 27°C
(81°F)
Average high 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(77°F)		 23°C
(74°F)		 22°C
(71°F)		 21°C
(70°F)		 21°C
(70°F)		 22°C
(71°F)		 23°C
(73°F)		 24°C
(75°F)		 26°C
(79°F)
Daily mean 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(73°F)		 21°C
(70°F)		 19°C
(67°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(67°F)		 20°C
(69°F)		 21°C
(71°F)		 23°C
(74°F)
Average low 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(71°F)		 19°C
(67°F)		 18°C
(64°F)		 17°C
(62°F)		 16°C
(62°F)		 17°C
(63°F)		 18°C
(65°F)		 20°C
(67°F)		 21°C
(71°F)
Mean minimum 21°C
(69°F)		 21°C
(70°F)		 20°C
(69°F)		 19°C
(67°F)		 17°C
(63°F)		 16°C
(61°F)		 15°C
(59°F)		 14°C
(58°F)		 15°C
(60°F)		 16°C
(61°F)		 17°C
(63°F)		 19°C
(67°F)
Minimum 19°C
(66°F)		 20°C
(69°F)		 19°C
(67°F)		 18°C
(65°F)		 16°C
(62°F)		 14°C
(58°F)		 14°C
(57°F)		 13°C
(56°F)		 14°C
(58°F)		 16°C
(60°F)		 15°C
(59°F)		 18°C
(65°F)

Compare climate in Saint-Denis with other places

Compare temperature, precipitation, sunshine, UV index in Saint-Denis, Réunion with other places around the world.

Monthly average precipitation in Saint-Denis, Réunion §

Saint-Denis usually has the most precipitation in January, February and March, with an average of 23 rainy days and 211 mm (8.3 inches) of precipitation per month.The driest months in Saint-Denis are July, August and September. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint-Denis, Réunion.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 195 (7.7) 197 (7.8) 241 (9.5) 147 (5.8) 74 (2.9) 67 (2.6) 51 (2.0) 48 (1.9) 47 (1.9) 78 (3.1) 113 (4.4) 104 (4.1)
Average precipitation days (≥ 1 mm) 19 24 26 23 19 20 18 13 14 15 20 21

Monthly sunshine hours in Saint-Denis, Réunion §

The sunniest months in Saint-Denis are October, November and December, when the sun shines an average of 12 hours 16 minutes a day.Least sunny months in Saint-Denis: January, June and July receive an average of 9 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint-Denis, Réunion.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 304 334 351 315 320 301 313 329 333 364 371 393
Mean daily daylight hours 13h 13m 12h 46m 12h 10m 11h 35m 11h 6m 10h 52m 10h 59m 11h 24m 11h 58m 12h 34m 13h 5m 13h 21m

Solar UV radiation in Saint-Denis, Réunion §

Saint-Denis experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure.May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Saint-Denis UV Index data.

Average daily maximum UV levels by month for Saint-Denis, Réunion.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 16 16 14 12 9 7 8 10 11 13 14 15