Tal y Fan weather tomorrow, this weekend and 14-day summit forecast
610 m · Snowdonia
Tal y Fan is the last hill at the northern end of the Carneddau, a rocky ridge above the Conwy valley with standing stones near Bwlch y Ddeufaen.
Tal y Fan today (updated 02:25, 18 Oct): up to 9°C at the summit, feeling as cold as 1°C, summit wind 24 mph gusting 30 mph, 45% chance of rain. A good day for the hills.
Tal y Fan weather today, tomorrow and this weekend
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Good Today Monday 19 October
Slight rain, up to 9°C at the summit, feeling as cold as 1°C, summit wind 24 mph gusting 30 mph, 45% chance of rain. Rated Good. Sunrise 07:49, sunset 18:11.
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Good Tomorrow Tuesday 20 October
Overcast, up to 10°C at the summit, feeling as cold as -3°C, summit wind 23 mph gusting 29 mph, 59% chance of rain. Rated Good. Sunrise 07:51, sunset 18:09.
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Poor Saturday 24 October
Slight rain, up to 6°C at the summit, feeling as cold as -3°C, summit wind 57 mph gusting 72 mph, 76% chance of rain. Rated Poor. Sunrise 07:59, sunset 18:00.
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Marginal Sunday 25 October
Moderate drizzle, up to 11°C at the summit, feeling as cold as -1°C, summit wind 35 mph gusting 49 mph, 78% chance of rain. Rated Marginal. Sunrise 07:00, sunset 16:58.
Best day of the next seven: Monday 19 October, with summit gusts around 30 mph and a 45% chance of rain. Peakify picks it as the day with the lightest gusts, after a penalty for any chance of rain over 40%.
Tal y Fan 14-day summit weather forecast
Every day the cache holds from today, at summit height. Temperatures in °C, wind and gusts in mph, rain as the day's highest chance. Days 8 to 14 are marked less certain: forecasts lose skill quickly beyond a week, so read them as a trend.
| Day | Verdict | Weather | High / low | Feels like | Wind / gust | Rain | Snow |
|---|---|---|---|---|---|---|---|
| Today | Good | Slight rain | 9° / 4° | 1° | 24 / 30 mph | 45% | — |
| Tomorrow | Good | Overcast | 10° / 1° | -3° | 23 / 29 mph | 59% | — |
| Wed 21 Oct | Marginal | Slight rain | 6° / -2° | -5° | 34 / 43 mph | 86% | — |
| Thu 22 Oct | Marginal | Light drizzle | 8° / 0° | -4° | 31 / 38 mph | 70% | — |
| Fri 23 Oct | Marginal | Light drizzle | 5° / 0° | -3° | 30 / 37 mph | 98% | — |
| Sat 24 Oct | Poor | Slight rain | 6° / 1° | -3° | 57 / 72 mph | 76% | — |
| Sun 25 Oct | Marginal | Moderate drizzle | 11° / 2° | -1° | 35 / 49 mph | 78% | — |
| Days 8 to 13: less certain | |||||||
| Mon 26 Oct | Poor (less certain) | Moderate rain showers | 12° / 8° | 7° | 55+ / 69+ mph | 67% | — |
| Tue 27 Oct | Poor (less certain) | Moderate drizzle | 11° / 4° | 0° | 42 / 54 mph | 64% | — |
| Wed 28 Oct | Good (less certain) | Partly cloudy | 9° / 3° | 0° | 24 / 34 mph | 50% | — |
| Thu 29 Oct | Marginal (less certain) | Overcast | 9° / 4° | 1° | 25 / 40 mph | 44% | — |
| Fri 30 Oct | Marginal (less certain) | Slight rain showers | 9° / 5° | 1° | 25 / 40 mph | 47% | — |
| Sat 31 Oct | Marginal (less certain) | Moderate drizzle | 11° / 8° | 5° | 33 / 42 mph | 43% | — |
The cached forecast has no freezing level; snow is the model's summit snowfall for the day.
How the Tal y Fan summit forecast is made
The numbers come from the Open-Meteo weather model for the summit's position at 610 m, in the mountain's local time. A valley forecast would understate the summit badly, so the wind is worked out at summit height from the model's upper-air winds: the standard 10 m wind sits over the model's smoothed ground and is roughly half what an exposed top gets.
Peakify rates each day Good, Marginal or Poor from the forecast summit wind, gusts, chance of rain and wind chill. Wind of 40 mph or gusts of 65 mph make it Poor; wind of 25 mph, gusts of 45 mph, a 60% chance of rain or a feels-like temperature of -8°C or below make it Marginal. The verdict is the same one shown on the main peak page and in the Peakify app.
"Feels like" is the coldest apparent temperature of the day, which combines air temperature, wind and humidity. On a windy summit it can be well below the air temperature, so pack for that figure, not the high.
For a second opinion before a big day, read the Met Office mountain forecast or MWIS for the area. They are written by forecasters and cover hazards such as cloud on the tops and visibility that a model table can't.
Questions about Tal y Fan
What is the Tal y Fan weather tomorrow?
Tuesday 20 October: overcast, up to 10°C at the summit, feeling as cold as -3°C, summit wind 23 mph gusting 29 mph, 59% chance of rain. Rated Good.
What is the Tal y Fan weather this weekend?
Saturday 24 October: slight rain, up to 6°C at the summit, feeling as cold as -3°C, summit wind 57 mph gusting 72 mph, 76% chance of rain. Rated Poor. Sunday 25 October: moderate drizzle, up to 11°C at the summit, feeling as cold as -1°C, summit wind 35 mph gusting 49 mph, 78% chance of rain. Rated Marginal.
Is there a 14-day Tal y Fan weather forecast?
Yes. This page lists up to 14 days of summit weather for Tal y Fan, each with a Good, Marginal or Poor verdict. Days 8 to 14 are less certain: use them to spot a settled or stormy spell, not to plan a day.
Where does the Tal y Fan summit forecast come from?
From the Open-Meteo weather model for the summit's position at 610 m, refreshed every few hours. Wind is worked out at summit height from the model's upper-air winds, because the standard 10 m wind is roughly half what a summit gets.