Guernsey Airport (GCI) 15 Day Weather Forecast, Guernsey United Kingdom
Current weather conditions and 15 day weather forecast for Guernsey Airport in Guernsey, United Kingdom 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 GCI
| 12 September 2026 Sat 17.4 ° C ( 63.3°F )  Clear |
Feels Like : 15 ° C / 59°F Humidity : % 88 Pressure : 1025 mb Wind Speed : 21.2 kmph / 13.2 miles from WSW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 5 |
15-day weather forecast for Guernsey Airport, Guernsey, United Kingdom
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 12 September 2026 Sat | Sunny |
16.4 ° C | 17.5 ° C | 17 ° C | % 83 | 23.4 km/h | 15% |
| 13 September 2026 Sun |  Overcast |
17.4 ° C | 18.2 ° C | 17.7 ° C | % 90 | 23 km/h | 60% |
| 14 September 2026 Mon | Sunny |
18.1 ° C | 20.7 ° C | 19 ° C | % 92 | 16.9 km/h | 21% |
| 15 September 2026 Tue | Sunny |
16.2 ° C | 20.3 ° C | 17.8 ° C | % 83 | 43.2 km/h | 17% |
| 16 September 2026 Wed |  Patchy rain nearby |
14.9 ° C | 16.3 ° C | 15.7 ° C | % 71 | 37.1 km/h | 45% |
| 17 September 2026 Thu | Overcast |
15.1 ° C | 16.7 ° C | 16 ° C | % 73 | 42.8 km/h | 67% |
| 18 September 2026 Fri | Patchy rain nearby |
15.8 ° C | 16.7 ° C | 16.2 ° C | % 71 | 33.8 km/h | 29% |
| 19 September 2026 Sat | Overcast |
16.4 ° C | 17.8 ° C | 17.1 ° C | % 85 | 46.4 km/h | 37% |
| 20 September 2026 Sun | Sunny |
15.1 ° C | 16.5 ° C | 15.7 ° C | % 64 | 27 km/h | 9% |
| 21 September 2026 Mon | Overcast |
15.2 ° C | 15.9 ° C | 15.5 ° C | % 64 | 18.7 km/h | 8% |
| 22 September 2026 Tue | Sunny |
15.3 ° C | 16.6 ° C | 15.9 ° C | % 66 | 12.6 km/h | 8% |
| 23 September 2026 Wed |  Light rain shower |
15.9 ° C | 17.4 ° C | 16.5 ° C | % 84 | 55.4 km/h | 86% |
| 24 September 2026 Thu | Patchy rain nearby |
16 ° C | 17.5 ° C | 16.6 ° C | % 82 | 44.3 km/h | 76% |
| 25 September 2026 Fri | Patchy rain nearby |
15.2 ° C | 16.6 ° C | 15.8 ° C | % 72 | 45 km/h | 72% |
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