Guernsey Weather Fox

Seven day Guernsey weather forecast for 08 December 2025

Monday and Tuesday

Weather

Although the whole week will be very mild for winter, these two days will take the highest temperatures (14-15°C for the daily maxima, no less than 12°C for the nightly minima). As is so often though the source of winter warmth is also the source of moisture and murk. Thus, the sky will be overcast, with patchy drizzle and the risk of hill fog (mainly in the morning and night time and the night time). Winds will be Strong force 6 S’ly for the majority of the time, only easing to moderate force 4 SW’ly on Tuesday night, when the cloud will also fragment to real the waning moon.

Surf and the Water

Monday’s 4 foot waves will be replaced by super-powerful 8-10 footers on Tuesday. Both days super-clean… the west coast being best on Monday and then the north coast on Tuesday. Tides will be high around breakfast time and low in the late afternoons. Monday’s high being 9.2m and Tuesday’s 8.9m. Both days great for windsurfing and kitesurfing, but not great for swimming.

Wednesday to Friday

Weather

This portion of the week will have gentler winds the first part… light force 3 WSW’ly on Wednesday, backing fresh force 5 SSE’ly through Thursday and then increasing fresh moderate force 4 SSW’lyon Friday. This all comes with the movement of a ridge of high pressure, which generally also means dry air through a greater depth of atmosphere. Thus, although it will be cloudy just as often as it’s sunny (in fact probably more often), the cloud will only be thin, so drizzle and hill fog will be much less likely, than on the previous days. Furthermore, it won’t be so essential to seek shelter any more, but if you do still wish to eliminate the wind then the east coast will be your preferred zone on Wednesday, followed by the weather coast on Thursday and Friday. Daily temperatures likely peaking between 12 and 13°C, nightly minima probably 10°C.

Surf and the Water

The surf should be pretty clean throughout, with waves generally between 5 and 8 feet on the west coast (possibly also good on the north coast on Friday). Windsurfing and kitesurfing conditions will probably be best on Thursday. Swiumming conditions best on Wednesday, especially on the east coast. Tides will be high in the late mornings (8.4m, 7.9m and 7.5m respectively). Low tides will be towards dinnertime.

The Weekend

Weather

It currently looks as though low pressure will be firmly anchored over Northwest Britain, and high-pressure over continental Europe, giving us a fresh force five (but very mild) SSW’ly wind both days. Being on the boundary of these two weather regimes, means that there will be the risk of some rain pushing in from the north but it will most likely be held off by the opposing forces from the south. Current computer model predictions are that Saturday will be dry and bright but Sunday cloud and wetter. I wouldn’t be at all surprised though if it turns out that Sunday is just fine this Saturday. Either way, Max temperature is in the low teens, only a degree or two temperatures lower.

Surf and the Water

Tides will be low around dawn and high in the early afternoons (7.2m Saturday and 7.1m Sunday). The surfing and windsport conditions will be pretty fantastic throughout. Wave heights most likely 4-6 feet on the west coast.

The next forecast update will be on Thursday evening…

Previous Weather Fox Forecasts

Tide Tables
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Ormering
Lihou Causeway

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