28 to 34°C
temperature
2497 hours
sunshine per day
891 mm
rain
87 days
dry
278 days
rain
0 days
snow

Climate of Saint-Louis

Saint-Louis has a tropical monsoon climate. You have high temperatures and a lot of rainfall throughout the year. The average annual temperature for Saint-Louis is 58° degrees and there is about 351 inch of rain in a year. It is dry for 66 days a year with an average humidity of 84% and an UV-index of 6.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 28°C and 34°C
  • Night:the average nighttime temperature is between 21°C and 22°C
  • Rain: it rains 278 days and there is a total of approximately 891 mm rainfall
  • Sun hours: throughout the year there are 2497 sun hours
Maximum temperature: between 28°C and 34°C
Warmest month: 34°C in September
Coldest month: 28°C in January
Night temperature: between 21°C and 22°C
Dry days: 87 days
Days with rain: 278 days
Days with snow: 0 days
Total rain sum: 891 mm
Hours of sunshine: 2497 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Saint-Louis.

Precipitation graph

This graph shows the average amount of rainfall per month for Saint-Louis.

Climate table of Saint-Louis

In this climate table you can see at a glance what the average weather per month is for Saint-Louis. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Saint-Louis might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°F) 83 82 83 84 84 86 87 90 93 93 91 86
Night temp. (°F) 72 72 72 72 72 71 70 71 72 72 72 72
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (inch) 46 46 38 40 41 30 24 11 7 7 16 43
Days with rain 28 27 30 29 30 27 26 17 12 11 16 25
Dry days 3 1 1 1 1 3 5 14 18 20 14 6
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 4 5 5 6 7 8 9 9 9 8 6
Wind force (Bft) 2 2 2 1 1 1 1 2 2 2 2 2
UV-index 6 6 6 6 6 6 7 7 7 7 7 6

Best time to visit Saint-Louis

The best time to visit Saint-Louis in French Guiana is from March and June and July. In this period you have a warm temperature and little precipitation. The highest average temperature in Saint-Louis is 93°F in September and the lowest is 82°F in February.

Climate of Saint-Louis by month

What is the average climate in a given month for Saint-Louis? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Saint-Louis weather experiences

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