Summit today
Is it safe to climb Slieveboy today?
Slieveboy today (updated 03:32, 18 Oct): up to 10°C at the summit, feeling as cold as -6°C, summit wind 7 mph gusting 13 mph, 0% chance of rain. A good day for the hills.
Slieveboy weather today
Partly cloudy, up to 10°C at the summit, feeling as cold as -6°C, summit wind 7 mph gusting 13 mph, 0% chance of rain. Rated Good.
Slieveboy weather tomorrow
Monday 19 October: mostly dry, up to 10°C at the summit, feeling as cold as -3°C, summit wind 11 mph gusting 14 mph, 6% chance of rain. Rated Good.
Slieveboy weather this weekend
Sunday 18 October: partly cloudy, up to 10°C at the summit, feeling as cold as -6°C, summit wind 7 mph gusting 13 mph, 0% chance of rain. Rated Good.
Slieveboy summit forecast, next 7 days
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| TodayPartly cloudy | Good | 10°/-3° | -6° | 7/13 | 0% |
|---|
| TomorrowLight drizzle | Good | 10°/-1° | -3° | 11/14 | 6% |
|---|
| Tue 20Slight rain | Marginal | 11°/3° | 1° | 26/36 | 54% |
|---|
| Wed 21Slight rain | Good | 8°/3° | -1° | 18/24 | 58% |
|---|
| Thu 22Light drizzle | Good | 9°/3° | 0° | 16/24 | 55% |
|---|
| Fri 23Light drizzle | Marginal | 7°/3° | -1° | 18/26 | 81% |
|---|
| Sat 24Moderate rain | Marginal | 9°/4° | -1° | 39/48 | 71% |
|---|
Slieveboy 14-day weather forecast: days 8 to 14, less certain
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| Sun 25Moderate drizzle | Marginal | 14°/5° | -1° | 25/38 | 85% |
|---|
| Mon 26Dense drizzle | Marginal | 14°/6° | 3° | 24/30 | 67% |
|---|
| Tue 27A dusting of snow | Marginal | 8°/4° | 0° | 25/36 | 55% |
|---|
| Wed 28Overcast | Good | 11°/5° | 1° | 17/27 | 47% |
|---|
| Thu 29Light drizzle | Good | 11°/7° | 3° | 23/36 | 50% |
|---|
| Fri 30Light drizzle | Good | 11°/4° | 2° | 10/30 | 41% |
|---|
| Sat 31Moderate drizzle | Marginal | 12°/3° | 0° | 28/35 | 40% |
|---|
Routes up
Routes coming soon
Cloud inversion · 7 days
The chance of standing above a sea of cloud on Slieveboy each morning this week, from overnight temperature, humidity and low cloud below the 259m summit.
Dark sky · 7 days
How dark the sky gets over Slieveboy 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 08:03, sunset 18:23
10h 19m of daylight. Golden hour ends 08:54 and starts 17:31. From the summit you see the sun 08:00 to 18:26.
Nearby summits
Close to Slieveboy
About Slieveboy
Slieveboy is 259 m (850 ft) high with 105 m of prominence. It is in Sperrin Mountains, Ireland. OS grid reference C559032. It is the 36th highest of the 40 summits Peakify lists in Sperrin Mountains. The nearest summits are Crockdooish (3.1 km), Straid Hill (3.1 km) and Letterlogher (5.2 km).
How high is Slieveboy?
Slieveboy is 259 metres high with 105 metres of prominence.
Where is Slieveboy?
Slieveboy is listed in Sperrin Mountains, Ireland.
Are there routes for Slieveboy?
Route data is not available for this mountain yet, but the page still shows summit, weather, and location context.
Is it safe to climb Slieveboy 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 Slieveboy tomorrow?
Monday 19 October: mostly dry, up to 10°C at the summit, feeling as cold as -3°C, summit wind 11 mph gusting 14 mph, 6% chance of rain. Rated Good.
What is the weather on Slieveboy this weekend?
Sunday 18 October: partly cloudy, up to 10°C at the summit, feeling as cold as -6°C, summit wind 7 mph gusting 13 mph, 0% chance of rain. Rated Good.
What weather information is shown for Slieveboy?
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.
