Is it safe to climb Grasmoor today and tomorrow?

Today on Grasmoor is rated Marginal and tomorrow Marginal, from the summit forecast. Summit forecast updated 22:15, 18 Oct. The reasons are below, followed by what the rating can't tell you.

Is it safe to climb Grasmoor today?

Marginal Today Monday 19 October

• Wind and gusts: Summit wind up to 36 mph, gusting 45 mph. That is past the Marginal line (wind 25 mph or gusts 45 mph): expect to be pushed about on ridges and the summit.
• Rain: 51% chance of rain, about 2.4 mm in all.
• Cloud: Cloud cover averages 64% and humidity 91% at summit height. The forecast gives no cloud base height; the main peak page estimates one from the valley forecast.
• Temperature and wind chill: Up to 8°C at the summit, down to 3°C, feeling as cold as -2°C in the wind.
• Daylight: Sunrise 07:49, sunset 18:06: 10h 16m of daylight. The longest route listed here takes about 4h 20m there and back by Naismith's rule, before stops.

Is it safe to climb Grasmoor tomorrow?

Marginal Tomorrow Tuesday 20 October

• Wind and gusts: Summit wind up to 26 mph, gusting 33 mph. That is past the Marginal line (wind 25 mph or gusts 45 mph): expect to be pushed about on ridges and the summit.
• Rain: 86% chance of rain, about 6.8 mm in all. A 60% chance or more makes the day Marginal on its own: wet rock is slippery and wet kit chills you faster.
• Cloud: Cloud cover averages 100% and humidity 97% at summit height. Air that close to saturation means the top is likely to be in cloud, so plan to navigate by map and compass. The forecast gives no cloud base height; the main peak page estimates one from the valley forecast.
• Temperature and wind chill: Up to 6°C at the summit, down to 5°C, feeling as cold as 2°C in the wind.
• Daylight: Sunrise 07:51, sunset 18:03: 10h 12m of daylight. The longest route listed here takes about 4h 20m there and back by Naismith's rule, before stops.

Is it safe to climb Grasmoor this weekend?

Poor Saturday 24 October

• Wind and gusts: Summit wind up to 47 mph, gusting 59 mph. That is past the Poor line (wind 40 mph or gusts 65 mph), when walking on exposed ground is hard and a fall more likely.
• Rain: 69% chance of rain, about 5.5 mm in all. A 60% chance or more makes the day Marginal on its own: wet rock is slippery and wet kit chills you faster.
• Cloud: Cloud cover averages 98% and humidity 82% at summit height. The forecast gives no cloud base height; the main peak page estimates one from the valley forecast.
• Temperature and wind chill: Up to 7°C at the summit, down to 2°C, feeling as cold as -5°C in the wind.
• Daylight: Sunrise 07:59, sunset 17:54: 9h 55m of daylight. The longest route listed here takes about 4h 20m there and back by Naismith's rule, before stops.

Poor Sunday 25 October

• Wind and gusts: Summit wind up to 53 mph, gusting 66 mph. That is past the Poor line (wind 40 mph or gusts 65 mph), when walking on exposed ground is hard and a fall more likely.
• Rain: 88% chance of rain, about 19.3 mm in all. A 60% chance or more makes the day Marginal on its own: wet rock is slippery and wet kit chills you faster.
• Cloud: Cloud cover averages 85% and humidity 88% at summit height. The forecast gives no cloud base height; the main peak page estimates one from the valley forecast.
• Temperature and wind chill: Up to 11°C at the summit, down to 4°C, feeling as cold as -2°C in the wind.
• Daylight: Sunrise 07:01, sunset 16:52: 9h 51m of daylight. The longest route listed here takes about 4h 20m there and back by Naismith's rule, before stops.

Weekend forecasts firm up during the week; check again the day before.

What the verdict covers, and what it doesn't

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. That is all it measures: the weather forecast at the summit.

It does not know your fitness or experience, whether you can navigate in cloud with a map and compass, or what you are carrying. It does not see the state of the path, river levels, snow and ice already on the ground, or how the forecast is changing during the day. A Good day can still go wrong if you start late, turn an ankle or lose the path in mist, and a Marginal day can be fine for an experienced party on the easiest route.

On any day, carry waterproofs, warm layers, a hat and gloves, food, water, a head torch and a charged phone, and know how you would navigate if the top is in cloud. Tell someone your route and when you expect to be down. In winter conditions you need an ice axe and crampons and the skill to use them, or a guide.

Route notes for Grasmoor

Lanthwaite Green via Gasgale Gill

From Lanthwaite Green car park. Walk up Gasgale Gill to Coledale Hause, then climb west on to the summit plateau. Graded Moderate: a hill path, rough or rocky in places, below the Hard and Scramble grades. In cloud, take care to stay on the path. About 3h 20m there and back by Naismith's rule (5.5 km one way, 699 m of ascent).

Cinderdale Common via Lad Hows

From Cinderdale Common (roadside, Crummock Water). Climb the steep grassy ridge of Lad Hows above Crummock Water, then follow the edge on to the plateau. Graded Moderate: a hill path, rough or rocky in places, below the Hard and Scramble grades. In cloud, take care to stay on the path. About 2h 15m there and back by Naismith's rule (2.7 km one way, 714 m of ascent).

Braithwaite via Coledale Hause

From Braithwaite / lower Whinlatter Pass car park. A hard mountain walk to the summit from Braithwaite / lower Whinlatter Pass car park. Graded Hard: steeper, rougher or longer than the moderate routes, with more time on high, exposed ground.

Lanthwaite via Gasgale Gill and Coledale Hause

From Lanthwaite Wood National Trust car park. A hard mountain walk to the summit from Lanthwaite Wood National Trust car park. Graded Hard: steeper, rougher or longer than the moderate routes, with more time on high, exposed ground. About 4h 20m there and back by Naismith's rule (7.5 km one way, 820 m of ascent).

Buttermere via Whiteless Pike

From Buttermere village National Trust car park. A hard mountain walk to the summit from Buttermere village National Trust car park. Graded Hard: steeper, rougher or longer than the moderate routes, with more time on high, exposed ground.

Full distances, ascent and times are on the Grasmoor routes page.

In an emergency

Call 999, ask for the police and then mountain rescue. Mountain rescue teams in the UK are volunteers called out through the police. Give your location (a grid reference from a map or phone app if you can), what has happened, how many are in your group and your phone number, then keep the phone free. If you have no signal, try to move to higher ground or text 999; you need to have registered your phone with the emergencySMS service before for a text to work.

Questions about Grasmoor

Is it safe to climb Grasmoor today?

Today, Monday 19 October: light drizzle, up to 8°C at the summit, feeling as cold as -2°C, summit wind 36 mph gusting 45 mph, 51% chance of rain. Rated Marginal. The rating covers the summit weather only; your route, kit and experience matter as much.

Is it safe to climb Grasmoor tomorrow?

Tomorrow, Tuesday 20 October: slight rain, up to 6°C at the summit, feeling as cold as 2°C, summit wind 26 mph gusting 33 mph, 86% chance of rain. Rated Marginal.

How does Peakify decide whether Grasmoor is safe to climb?

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. It does not judge your fitness, kit, navigation or the state of the path.

Who do I call in an emergency on Grasmoor?

Call 999, ask for the police and then mountain rescue. Give your location (a grid reference if you can), what happened and how many are in your group. Stay with the casualty and keep them warm.