Summit today
Is it safe to climb Slieve Gallion today?
Slieve Gallion today (updated 03:07, 18 Oct): up to 7°C at the summit, feeling as cold as -1°C, summit wind 8 mph gusting 19 mph, 0% chance of rain. A good day for the hills.
Slieve Gallion weather today
Partly cloudy, up to 7°C at the summit, feeling as cold as -1°C, summit wind 8 mph gusting 19 mph, 0% chance of rain. Rated Good.
Slieve Gallion weather tomorrow
Monday 19 October: light drizzle, up to 8°C at the summit, feeling as cold as 1°C, summit wind 22 mph gusting 27 mph, 22% chance of rain. Rated Good.
Slieve Gallion weather this weekend
Sunday 18 October: partly cloudy, up to 7°C at the summit, feeling as cold as -1°C, summit wind 8 mph gusting 19 mph, 0% chance of rain. Rated Good.
Slieve Gallion summit forecast, next 7 days
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| TodayPartly cloudy | Good | 7°/3° | -1° | 8/19 | 0% |
|---|
| TomorrowLight drizzle | Good | 8°/4° | 1° | 22/27 | 22% |
|---|
| Tue 20Dense drizzle | Marginal | 10°/5° | 1° | 32/40 | 53% |
|---|
| Wed 21Moderate drizzle | Marginal | 8°/-3° | -6° | 32/40 | 65% |
|---|
| Thu 22Light drizzle | Good | 8°/1° | -2° | 22/28 | 54% |
|---|
| Fri 23Overcast | Marginal | 5°/1° | -3° | 25/31 | 63% |
|---|
| Sat 24Moderate rain | Poor | 7°/2° | -3° | 49/61 | 55% |
|---|
Slieve Gallion 14-day weather forecast: days 8 to 14, less certain
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| Sun 25Light drizzle | Poor | 12°/2° | -1° | 42/53 | 69% |
|---|
| Mon 26Dense drizzle | Poor | 12°/4° | 2° | 43/53 | 53% |
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| Tue 27Moderate drizzle | Poor | 7°/3° | -1° | 41/51 | 47% |
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| Wed 28Overcast | Good | 9°/3° | -1° | 23/29 | 41% |
|---|
| Thu 29Light drizzle | Marginal | 9°/4° | 1° | 36/45 | 39% |
|---|
| Fri 30Moderate drizzle | Good | 9°/1° | -1° | 22/30 | 37% |
|---|
| Sat 31Light drizzle | Poor | 9°/1° | -2° | 40/50 | 39% |
|---|
Routes up
Routes coming soon
Cloud inversion · 7 days
The chance of standing above a sea of cloud on Slieve Gallion each morning this week, from overnight temperature, humidity and low cloud below the 527m summit.
Dark sky · 7 days
How dark the sky gets over Slieve Gallion each night this week, from cloud cover, moonlight and local light pollution.
Snow · 7 days
No snow is forecast at the summit in the next 7 days.
Sun today
Sunrise 08:02, sunset 18:22
10h 20m of daylight. Golden hour ends 08:52 and starts 17:30. From the summit you see the sun 07:57 to 18:26.
Nearby summits
Close to Slieve Gallion
About Slieve Gallion
Slieve Gallion is 527 m (1,728 ft) high with 331 m of prominence. It is in Sperrin Mountains, Ireland. OS grid reference H798878. It is the 12th highest of the 40 summits Peakify lists in Sperrin Mountains. The nearest summits are Crockbrack (11 km), Mullaghmore (14 km) and White Mountain (15 km).
How high is Slieve Gallion?
Slieve Gallion is 527 metres high with 331 metres of prominence.
Where is Slieve Gallion?
Slieve Gallion is listed in Sperrin Mountains, Ireland.
Are there routes for Slieve Gallion?
Route data is not available for this mountain yet, but the page still shows summit, weather, and location context.
Is it safe to climb Slieve Gallion today?
Peakify rates each day on the summit 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. Today's and tomorrow's ratings are at the top of this page. The rating covers the weather only: also check your route, daylight, kit and experience, and in winter whether you need an ice axe and crampons.
What is the weather on Slieve Gallion tomorrow?
Monday 19 October: light drizzle, up to 8°C at the summit, feeling as cold as 1°C, summit wind 22 mph gusting 27 mph, 22% chance of rain. Rated Good.
What is the weather on Slieve Gallion this weekend?
Sunday 18 October: partly cloudy, up to 7°C at the summit, feeling as cold as -1°C, summit wind 8 mph gusting 19 mph, 0% chance of rain. Rated Good.
What weather information is shown for Slieve Gallion?
The page includes cached mountain forecast context, snow outlook, dark-sky signals, cloud-inversion information, sunrise, sunset, and summit planning details where available.
Written and kept up to date by the Peakify team. The forecast refreshes every hour; how our forecast works.
