Scotland Midge Forecast · Loch Lomond & the Trossachs

Arrochar Midge Forecast

7-day and hour-by-hour midge forecast for Arrochar, with the best time to be outdoors.

Updated 15:02 · refreshed every 3 hours

Midge map Today

Midge forecast map of ScotlandShetland
  • Very Low0–19
  • Low20–39
  • Moderate40–59
  • High60–79
  • Very High80–100

Midge kit

Midge protection essentials

Midge levels look low around Arrochar this week, but a still, damp evening changes everything. These live in our rucksack from May to September.

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7-day midge forecast for Arrochar

DayMidge levelWorst hourBest time outdoorsDuskTempWindRain
Today26 Sep 6Very Low 15:00 07:00–21:00 6 19:08 8–10°C 9–15 mph 12.9 mm
Tomorrow27 Sep 2Very Low 18:00 07:00–21:00 3 19:05 7–10°C 9–19 mph 36 mm
Monday28 Sep 7Very Low 18:00 07:00–21:00 8 19:02 3–10°C 1–11 mph 0 mm
Tuesday29 Sep 0Very Low 04:00 07:00–21:00 0 19:00 4–12°C 5–18 mph 5.6 mm
Wednesday30 Sep 5Very Low 08:00 07:00–21:00 0 18:57 10–14°C 9–18 mph 28.6 mm
Thursday1 Oct 2Very Low 19:00 07:00–21:00 3 18:55 7–10°C 10–17 mph 3.7 mm
Friday2 Oct 5Very Low 18:00 07:00–21:00 5 18:52 6–9°C 5–16 mph 4.1 mm

Nearby places

Midges vary a lot over short distances. Here is the forecast nearby for Today.

Midges in Loch Lomond & the Trossachs

Loch Lomond & the Trossachs National Park has plenty of sheltered lochside woodland, and the eastern shore and West Highland Way camping spots can be very midgy in summer. Evenings by the water are worst, and a light breeze off the loch makes a big difference.

Midge hotspots

  • East Loch Lomond camping areas and Rowardennan
  • The West Highland Way from Drymen to Tyndrum
  • Loch Katrine, Loch Venachar and Trossachs lochs at dusk
  • Arrochar and Loch Long

Where to escape them

  • Open hill tops such as Ben Lomond or Ben A'an in a breeze
  • Stirling and the Forth valley
  • Busier villages such as Luss and Balloch in the daytime

See the full Loch Lomond & the Trossachs midge forecast

When are midges worst in Loch Lomond & the Trossachs?

The typical midge level week by week, from our model run over 2023, 2024, 2025 weather at Balloch (Loch Lomond).

Midgiest weeks: w/c 13 Jul, w/c 15 Jun, w/c 27 Jul.

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Arrochar midge FAQ

Are the midges bad in Arrochar right now?

Today's forecast for Arrochar is Very Low (6/100). Best time outdoors: 07:00–21:00. The forecast updates every three hours.

When is midge season in Arrochar?

As across most of Scotland, midges in Loch Lomond & the Trossachs are usually active from late May until September, peaking in July and August. Calm, damp, overcast evenings are the worst.

Where can I avoid midges in Loch Lomond & the Trossachs?

Head for breezy, open ground. Local options include: Open hill tops such as Ben Lomond or Ben A'an in a breeze; Stirling and the Forth valley. Midges struggle to fly in more than a light breeze.