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 April 2026 Sat 21.9 ° C ( 71.4°F )  Fog |
Feels Like : 21.9 ° C / 71.4°F Humidity : % 100 Pressure : 1011 mb Wind Speed : 3.6 kmph / 2.2 miles from ENE 
Visibility : 0 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
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 |
|---|---|---|---|---|---|---|---|
| 04 April 2026 Sat |  Patchy rain nearby |
21.4 ° C | 31.9 ° C | 25.3 ° C | % 83 | 7.9 km/h | 89% |
| 05 April 2026 Sun | Patchy rain nearby |
22 ° C | 30.2 ° C | 24.8 ° C | % 88 | 8.6 km/h | 86% |
| 06 April 2026 Mon |  Moderate rain |
21.4 ° C | 30.5 ° C | 24.3 ° C | % 92 | 8.6 km/h | 87% |
| 07 April 2026 Tue | Moderate rain |
22.2 ° C | 28 ° C | 24.1 ° C | % 95 | 6.8 km/h | 85% |
| 08 April 2026 Wed | Moderate rain |
22.5 ° C | 28.3 ° C | 24.7 ° C | % 93 | 7.9 km/h | 88% |
| 09 April 2026 Thu | Patchy rain nearby |
22.3 ° C | 29.8 ° C | 24.9 ° C | % 89 | 9.4 km/h | 86% |
| 10 April 2026 Fri | Patchy rain nearby |
21.4 ° C | 30.7 ° C | 24.6 ° C | % 87 | 8.6 km/h | 84% |
| 11 April 2026 Sat | Patchy rain nearby |
20.9 ° C | 30.8 ° C | 24.7 ° C | % 84 | 8.6 km/h | 79% |
| 12 April 2026 Sun | Patchy rain nearby |
21.4 ° C | 28.5 ° C | 24.2 ° C | % 91 | 7.2 km/h | 85% |
| 13 April 2026 Mon | Patchy rain nearby |
21.6 ° C | 27.1 ° C | 23.9 ° C | % 95 | 6.5 km/h | 89% |
| 14 April 2026 Tue | Moderate rain |
22 ° C | 27.2 ° C | 24 ° C | % 96 | 5.8 km/h | 88% |
| 15 April 2026 Wed | Patchy rain nearby |
22.3 ° C | 27 ° C | 24.1 ° C | % 97 | 6.1 km/h | 79% |
| 16 April 2026 Thu | Moderate rain |
22.5 ° C | 24.3 ° C | 23.1 ° C | % 99 | 2.9 km/h | 87% |
| 17 April 2026 Fri | Patchy rain nearby |
22.3 ° C | 26.6 ° C | 23.8 ° C | % 95 | 2.5 km/h | 85% |
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