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
| 24 April 2026 Fri 25.8 ° C ( 78.4°F )  Patchy rain nearby |
Feels Like : 28.3 ° C / 82.9°F Humidity : % 81 Pressure : 1014 mb Wind Speed : 3.6 kmph / 2.2 miles from NNE 
Visibility : 10 km Precipitation (rainfall) : 0.07 mm Cloud (%) : 66 |
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 |
|---|---|---|---|---|---|---|---|
| 24 April 2026 Fri |  Moderate rain |
21.4 ° C | 28 ° C | 23.1 ° C | % 96 | 5.4 km/h | 97% |
| 25 April 2026 Sat | Patchy rain nearby |
20.9 ° C | 29.3 ° C | 23.7 ° C | % 91 | 5.8 km/h | 89% |
| 26 April 2026 Sun | Moderate rain |
21 ° C | 30.8 ° C | 24.2 ° C | % 90 | 7.2 km/h | 84% |
| 27 April 2026 Mon | Patchy rain nearby |
20.7 ° C | 30.8 ° C | 24.5 ° C | % 87 | 8.6 km/h | 88% |
| 28 April 2026 Tue | Moderate rain |
21.4 ° C | 27.9 ° C | 24 ° C | % 93 | 6.5 km/h | 77% |
| 29 April 2026 Wed | Patchy rain nearby |
21.7 ° C | 26.9 ° C | 23.8 ° C | % 96 | 7.2 km/h | 80% |
| 30 April 2026 Thu | Patchy rain nearby |
21.7 ° C | 30.2 ° C | 24.4 ° C | % 92 | 7.6 km/h | 84% |
| 01 May 2026 Fri | Patchy rain nearby |
22.5 ° C | 28.3 ° C | 24.2 ° C | % 95 | 7.9 km/h | 86% |
| 02 May 2026 Sat | Patchy rain nearby |
22.2 ° C | 27.1 ° C | 24.2 ° C | % 95 | 6.8 km/h | 83% |
| 03 May 2026 Sun | Patchy rain nearby |
21.7 ° C | 29.2 ° C | 24.4 ° C | % 91 | 8.6 km/h | 75% |
| 04 May 2026 Mon | Patchy rain nearby |
21.6 ° C | 29.3 ° C | 24.2 ° C | % 92 | 7.6 km/h | 81% |
| 05 May 2026 Tue | Patchy rain nearby |
21.8 ° C | 27.2 ° C | 23.5 ° C | % 96 | 8.3 km/h | 89% |
| 06 May 2026 Wed | Patchy rain nearby |
21.7 ° C | 27.7 ° C | 23.9 ° C | % 93 | 7.9 km/h | 86% |
| 07 May 2026 Thu | Moderate rain |
21.4 ° C | 27.3 ° C | 23.6 ° C | % 96 | 6.5 km/h | 89% |
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