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.
Saint Georges Weather in September
Saint Georges in September sees very high daytime temperatures of 33°C (91°F) and nighttime lows of 23°C (73°F). With just 42 mm (1.7 in) of rainfall on average, it's the driest month of the year.
Rainfall in Saint Georges in September
The month is known for having the least rain of the year. Make the most of the sunshine and clear skies. Typically around 6 days of rainfall are expected, averaging 42 mm (1.7 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Saint Georges in September
September in Saint Georges brings typical temperatures with highs around 33°C (91°F) and lows of 23°C (73°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 23°C (73°F), evenings stay pleasantly warm.
Sunshine in Saint Georges in September
The days are predominantly sunny, with an estimated total of around 246 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, August and September typically offer the best circumstances for Saint Georges.
Saint Georges Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
33°C (91°F)
Chance of Rain
19%
Precipitation
42 mm (1.7 in)
Rainy days
6 days
Sunshine
246 hours
Percentage Sunshine
Saint Georges Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Georges - and find the best time to visit.
Daily Historical Temperatures
44-year average (1977-2025)
Based on our historical records, temperatures in Saint Georges typically stay consistent throughout September, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in September
Historical weather records for Saint Georges in September
Browse day-by-day weather records for Saint Georges spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Saint Georges historical weather extremes in September
The extremes listed below come from historical weather data collected in Saint Georges from 2004 through 2026.
- The hottest September day on record in Saint Georges reached 37°C (99°F) (September 19, 2009).
- The coldest September day was on September 8, 2004, with a maximum of 26°C (79°F).
- The lowest overnight temperature recorded in September was 19°C (66°F) (September 27, 2005).
Best Places in French Guiana in September
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 September →
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 Saint Georges in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Saint Georges in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Saint Georges 3-Day Forecast
More climate data for Saint Georges
See the full Saint Georges climate overview or explore weather in French Guiana.
Popular in September
Where to go in September - average daytime high across popular destinations.
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