Clwydian Range and Berwyns midge forecast

Mountain encounter guidance · Beta

Midges today and through the forecast week: check likely nuisance on the walk in, on the slopes and near the tops.

Clwydian Range and Berwyns by day

Compare approaches, mid-slopes and summit ground. A higher score means more potential nuisance, not better weather.

How to read this forecast →

Thursday 15 October 2026

Encounter risk
1Low

Clwydian Range and Berwyns at a glance

Why? Some calm spells, but the combined forecast conditions still suggest little midge activity.

Midges shouldn't be much bother across the area. Still-air hollows by water can have a few even on a quiet day.

Read the full mountain forecast →

Approach

Paths, glens and wetter lower ground

1Low

Why? Some calm spells, but the combined forecast conditions still suggest little midge activity.

Peak period
No distinct peak
Calm part of the day
13%

Mid-slopes

Open hillside between the approach and tops

0Low

Why? Some calm spells, but the combined forecast conditions still suggest little midge activity.

Peak period
No distinct peak
Calm part of the day
13%

Summit

Exposed upper mountain ground

0Low

Why? Few calm spells: wind helps limit midge activity. Sheltered spots may differ.

Peak period
No distinct peak
Calm part of the day
0%

An experimental encounter forecast, not a trap count. Local wet ground, woodland and wind shelter can change conditions sharply.

Beta. An encounter guide, not a measured insect count or a probability of being bitten. Local wet ground, woodland and wind shelter can change conditions sharply. Check the full mountain weather before choosing a route.

Weather data: Open-Meteo (CC BY 4.0). Adapted by Mountain Weather.

Forecast run: 14 October 2026 at 15:27 UTC.

Midges in the Clwydian Range and Berwyns

Open ridges in the Clwydians and moorland tops in the Berwyns contrast with more sheltered valleys and wooded approaches. Use the height bands to separate these parts of a walk.

Check timing if you plan an evening outing or a long pause below the ridge. The regional score does not describe every valley or forest track individually.

What makes a midge day?

Wind and shelter

Calmer spells and sheltered terrain are more favourable. A still glen, woodland edge or lee slope can feel very different from open ground nearby.

Moisture and timing

Mild, damp weather can support activity. Check the peak period for each height band, rather than treating the whole day as equally favourable. All times are local.

Height and exposure

Wetter lower ground is often more productive, but a calm spell can still allow midges high on the hill. Summit height alone is not a guarantee of relief.

Midges on the hill

Each area separates approaches, mid-slopes and summits. The overall score reflects the most affected height band, so a breezy summit does not hide nuisance on the walk in. See how the forecast works.

For wider seasonal context, VisitScotland's midge guide explains the influence of still, damp weather and dawn or dusk. That general advice is separate from our weather-led regional forecasts.

Useful before you head out

For advice on treating bites or a serious reaction, use current NHS insect bite and sting guidance.

What is a mountain midge forecast?

It estimates how favourable the forecast weather is for encountering biting midges. It is an encounter guide, not a measured insect count.

When is midge season in the UK?

Midge activity is most often associated with the warmer months, particularly in damp western and northern areas. The exact start and end vary with local weather and habitat.

Do midges occur on mountain summits?

They can. Exposed, breezy summits are often less favourable than sheltered lower ground, but elevation is not a guaranteed cut-off during a mild, calm spell.

How can walkers reduce midge encounters?

Check the forecast timing, favour airier locations where appropriate, cover exposed skin and carry a suitable insect repellent. Always make route decisions around the full mountain forecast, not midges alone.

For outdoor websites and trip planners

Midge guidance for your visitors

Help walkers and campers check the likely nuisance alongside the mountain weather. Midge forecasts are available with our paid API plans, with coverage and access confirmed before integration.