Discover French Guiana
Very few tourists make it to this small South American country. It's a shame, because nature in French Guiana is still pure and unspoiled.
Kourou Weather in August
With daytime temperatures of 31°C (88°F) and nighttime lows of 24°C (75°F), August in Kourou brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 110 mm (4.3 in) falls on average.
Rainfall in Kourou in August
Typically, you can expect about 10 days of rain this month, with 110 mm (4.3 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Kourou in August
In August, Kourou gets very high temperatures, with highs of 31°C (88°F). Nights cool to around 24°C (75°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Kourou in August
Expect sunny days throughout the month, with an estimated 230 hours of sunshine. This makes it a pleasant time to visit Kourou.Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, September and October typically offer the best weather for Kourou.
Kourou Temperature in August
Min Temperature
24°C (75°F)
Max Temperature
31°C (88°F)
Chance of Rain
33%
Precipitation
110 mm (4.3 in)
Rainy days
10 days
Sunshine
230 hours *
Percentage Sunshine
*
* Data from: Cayenne, French Guiana (42 KM, 26 Miles).
Kourou Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kourou - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Kourou typically stay consistent throughout August, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in August
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather records for Kourou in August
Browse day-by-day weather records for Kourou spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kourou historical weather extremes in August
According to our 34 years of weather records for Kourou, the following extremes were recorded between 1992 and 2026.
- On August 31, 2024, temperatures climbed to 35°C (95°F), marking the warmest August day on record.
- Kourou experienced its chilliest August day on August 12, 1999, reaching only 24°C (75°F).
- Kourou registered its coldest August night on August 3, 1997, with temperatures dropping to 21°C (70°F).
Best Places in French Guiana in August
Find out more about the weather in French Guiana and which places have the best travel conditions in this month. See all of French Guiana in August →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Kourou in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Kourou in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Kourou 3-Day Forecast
More climate data for Kourou
See the full Kourou climate overview or explore weather in French Guiana.
Popular in August
Where to go in August - average daytime high across popular destinations.
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