Is Saint-Louis hot in August?
Days are typically warm at 25.5°C, while nights average 18°C.
Reunion · 1991–2020 normal
Typical August weather in Saint-Louis: 25.5°C by day, 18°C at night, 59 mm of rain over 9.4 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, August scores 81 out of 100 (July leads the year at 81). Daylight is calculated as 11 h 23 from latitude -21.29°. Open-water sea temperature is 23.3°C (11 km from the place centre).
August at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 25.5°C, while nights average 18°C.
The measured monthly average is 59 mm across about 9 wet days.
There are about 11 h 23 between sunrise and sunset at mid-month, calculated from the place latitude.
August ranks 2 of 12 in our weather comparison; July ranks first.
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The nearest open-water NOAA OISST 1991–2020 cell averages 23.3°C in August. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
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The weather comparison for Saint-Louis is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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