Guernsey Weather Fox

7-day Forecast. Starting Monday 06/09/2021

Monday

Weather

Hot and muggy again, with a similar sticky feeling to Sunday, but with winds settling into a gentle ENE’ly, we should lose most of the mist and fog much earlier in the day. Then, with sunshine dominating the late morning and the afternoon, we should hit a max temp of about 25°C. If that feels a little too much for you, then simply head to the east or north coast, where an onshore breeze will refresh you to some extent.

Surf and the Water

The best chance of some clean rideable surf will be in the evening. Apart from that, we are just looking at another lovely day for swimming, kayaking and paddle-boarding (Probably best to let the fog clear first though). The tide will be low at 1:20pm and it will be high at 7am and 7:20pm (just under 9m).

Tuesday

Weather

With that breeze strengthening to a moderate force 4 E’ly, we will be in for a full day of dry continental air, meaning that we can expect flawless blue skies and a scorchio max of about 26°C. Those really high temperatures will be in the western (particularly the southwestern) parts of the island, so stay out east if you prefer to feel a little cooler. If you are hitting the beach for a full-day of sun-bathing and sea-swimming then I can tell you that the UV won’t be quite as intense as in the last four months, but it might just about scrape a 6, so it would still be wise to cover up or get greased up quite regularly.

Surf and the Water

The west-coast surf should still be about 2 feet on this day. Tiny as that is, it would be the biggest it’s been for a very long time. However, the swell models are struggling at the moment, without any serious weather-systems in our part of the Atlantic, so it’s another case of hope for the best but prepare for the worst. Anyway, surf or no surf, the E’ly wind will mean that the west coast is generally the best coast to get yourselves in the water for some refreshment. I’m not sure that the wind will quite be strong enough for a bit of kite-surfing, but there is certainly the chance of a half-decent session on either the east or north coast.

Wednesday to Friday

Weather

Wednesday should bring the showery (perhaps thundery) breakdown that you will probably be glad of. It would be nice if we could squeeze in another half day of pure sunshine, but that’s probably wishful thinking, because it looks as though the first downpour will probably be on us by late morning. Then, with an alternating pattern of bright spells and showers, we will probably accumulate 5-10mm of rain through the rest of the day and hit a top temp of 23°C. Through Thursday and Friday, the wind will be a gentle SW’ly (rather than the gentle S’ly of Wednesday) and this will probably lead to a reduction in temperature, despite the fact that we will see much more sunshine and far fewer showers. Max temps on those days will probably be 21°C and 20°C respectively.

Surf and the Water

Through Wednesday and Thursday, the west-coast surf will be 1 foot at best, but there’s a good chance of it jumping up to 2 feet by the end of Friday. The large spring tides will continue, with highs of around 9.5m in the early to mid-mornings, and lows in the mid-afternoons.

The Weekend

Weather

As a low pressure system is expected to move into Biscay, we shall probably see winds back to a S’ly direction on Saturday, bringing more in the way of sunshine than showers (temperatures peaking at around 20-21°C again). Then on Sunday, although rather uncertain at this stage, the wind will probably back SE’ly as the depression pushes right into Brittany. With that close proximity, the showers are likely to be heavier and much more frequent, meaning that this might well be the wettest day of the forecast.

Surf and the Water

There are two potential sources of swell for the west coast; firstly there is a mid-Atlantic low of no significant depth, which will have been in the right position for the last couple of days to have generated some 1-2 foot waves; secondly hurricane Larry will have been spinning much more dramatically but also much further to the southwest, so there is the hope of some much more powerful 3-4 foot waves from that. The tides will still be on the large side, with highs of around 9m in the late mornings and with lows in the late afternoons.

The next forecast update will be on Tuesday or Wednesday…

Previous Weather Fox Forecasts

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