Grand-Santi Airport (GSI) 15 Day Weather Forecast, Grand-Santi French Guiana
Current weather conditions and 15 day weather forecast for Grand-Santi Airport in Grand-Santi, French Guiana including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at GSI
| 04 June 2026 Thu 22.2 ° C ( 71.9°F )  Patchy light drizzle |
Feels Like : 17.5 ° C / 63.5°F Humidity : % 98 Pressure : 1016 mb Wind Speed : 3.6 kmph / 2.2 miles from ENE 
Visibility : 5 km Precipitation (rainfall) : 0.36 mm Cloud (%) : 85 |
15-day weather forecast for Grand-Santi Airport, Grand-Santi, French Guiana
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 03 June 2026 Wed |  Patchy rain nearby |
22.1 ° C | 30.8 ° C | 24.9 ° C | % 87 | 7.9 km/h | 83% |
| 04 June 2026 Thu | Patchy rain nearby |
21.6 ° C | 30.3 ° C | 24.5 ° C | % 89 | 7.2 km/h | 94% |
| 05 June 2026 Fri |  Moderate rain |
21.5 ° C | 28.4 ° C | 24.1 ° C | % 92 | 6.5 km/h | 96% |
| 06 June 2026 Sat | Patchy rain nearby |
21.5 ° C | 32.2 ° C | 24.6 ° C | % 87 | 6.8 km/h | 91% |
| 07 June 2026 Sun | Moderate rain |
20.8 ° C | 29.3 ° C | 24 ° C | % 91 | 7.6 km/h | 96% |
| 08 June 2026 Mon | Patchy rain nearby |
21.2 ° C | 25.5 ° C | 22.5 ° C | % 98 | 7.2 km/h | 98% |
| 09 June 2026 Tue | Patchy rain nearby |
21.4 ° C | 24.9 ° C | 22.9 ° C | % 97 | 5 km/h | 95% |
| 10 June 2026 Wed | Patchy rain nearby |
21.5 ° C | 28.4 ° C | 23.9 ° C | % 93 | 6.8 km/h | 94% |
| 11 June 2026 Thu | Patchy rain nearby |
21.9 ° C | 30.7 ° C | 24.4 ° C | % 89 | 6.8 km/h | 85% |
| 12 June 2026 Fri | Patchy rain nearby |
21.2 ° C | 30.5 ° C | 24.1 ° C | % 92 | 6.1 km/h | 93% |
| 13 June 2026 Sat | Patchy rain nearby |
21.1 ° C | 31.7 ° C | 24.8 ° C | % 84 | 6.8 km/h | 73% |
| 14 June 2026 Sun | Patchy rain nearby |
21.1 ° C | 31.2 ° C | 24.6 ° C | % 87 | 6.5 km/h | 88% |
| 15 June 2026 Mon | Patchy rain nearby |
21.3 ° C | 29.1 ° C | 24.2 ° C | % 92 | 5.8 km/h | 94% |
| 16 June 2026 Tue | Moderate rain |
21.7 ° C | 28.2 ° C | 23.8 ° C | % 95 | 7.6 km/h | 96% |
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