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Best time to visit · United Kingdom

Best Time to Visit Fort William

On the climate data, the best time to visit Fort William is June – August, scoring up to 69/100 with highs around 64°F (18°C) and 5.8 in (148 mm) of rain in July. April & May and September are good shoulder-season months. The toughest months are December & January, mainly because of cool days.

Fort William, United Kingdom
Best months
Jun – Aug
Shoulder
Apr & May and Sep
Toughest
Dec & Jan
Warmest
Jul · 64°F
Coldest nights
Feb · 35°F
Wettest
Jan · 7.5 in
Driest
Apr · 3.9 in

Fort William weather by month

Highs run from 42°F to 64°F across the year, and the yearly total is about 71.5 in (1815 mm) of rain.

23°32°41°50°59°68°42°Jan42°Feb45°Mar51°Apr57°May61°Jun64°Jul63°Aug59°Sep53°Oct47°Nov43°Dec0100200
Daily low → high (°F)Monthly rain (mm, right axis)Best months
Monthly climate averages for Fort William, 2001–2025
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Avg high42°F6°C42°F6°C45°F7°C51°F11°C57°F14°C61°F16°C64°F18°C63°F17°C59°F15°C53°F12°C47°F8°C43°F6°C
Avg low36°F2°C35°F2°C37°F3°C40°F5°C45°F7°C50°F10°C53°F12°C52°F11°C49°F10°C45°F7°C40°F5°C37°F3°C
Rain7.5 in191 mm5.5 in140 mm5.3 in134 mm3.9 in100 mm4.9 in125 mm5.2 in131 mm5.8 in148 mm6.5 in166 mm6.0 in152 mm7.0 in177 mm6.6 in167 mm7.2 in184 mm
Humidity96%95%93%89%86%87%88%90%92%94%96%96%
Cloud83%81%79%76%76%83%83%82%79%79%81%80%
Comfort273440556266696561483831

Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~382 m (1,253 ft) to Fort William's ~9 m (30 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.

How we pick the best months

  • Temperature (40 pts): full marks for average daytime highs of 64–81°F (18–27°C); minus 3 points per °C below and 4 per °C above.
  • Rain (25 pts): full marks up to 40 mm (1.6 in) a month, falling to zero at 250 mm (9.8 in).
  • Humidity (15 pts): only counts when it is warm (mean above 18°C); minus 0.75 points per % above 70% relative humidity.
  • Cloud (20 pts): full marks at 30% cloud cover or less, falling to zero at 90%.
Best months: within 6 points of the top (or 85+). Shoulder: within 18 and at least 45. Toughest: within 6 of the lowest. Comfort only; crowds, prices, festivals and openings aren't scored.

Fort William season by season

Winter Dec – Feb

The cold peaks here: highs near 43°F (6°C), and nights reach 35°F (2°C). It's the wettest season, with about 20.3 in (515 mm) of rain, 28% of the year's total. It holds the toughest stretch on our comfort score (December & January), averaging 31/100.

Spring Mar – May

Temperatures climb through the season, from 45°F highs in March to 57°F by May. It's the driest season, with only about 14.1 in (359 mm) of rain, 20% of the year's total. Lows bottom out around 37°F (3°C). April & May score well without being the very best (season average 52/100).

Summer Jun – Aug

The warmest stretch of the year, with highs of 61–64°F (16–18°C). About 17.5 in (445 mm) of rain falls across these months, 25% of the year's total. Lows bottom out around 50°F (10°C). Comfort peaks here: June – August rank with the year's best, and the season averages 67/100.

Autumn Sep – Nov

Temperatures slide from 59°F highs in September to 47°F by November. About 19.5 in (496 mm) of rain falls across these months, 27% of the year's total. Lows bottom out around 40°F (5°C). September score well without being the very best (season average 49/100).

What our curated routes say

Plan by month

By comfort score: 5 Good, 2 Fair and 5 Tough. Tap a month for its own guide.

Fort William weather questions

When is the best time to visit Fort William?

On the climate data, the best time to visit Fort William is June – August, scoring up to 69/100 with highs around 64°F (18°C) and 5.8 in (148 mm) of rain in July. April & May and September are good shoulder-season months. The toughest months are December & January, mainly because of cool days.

What is the rainiest month in Fort William?

January is the wettest month, averaging about 7.5 in (191 mm) of rain. April is the driest, with about 3.9 in (100 mm). The yearly total is around 71.5 in (1815 mm).

What is the coldest month in Fort William?

February is the coldest, with average lows of 35°F (2°C) and highs of 42°F (6°C). The warmest is July, with average highs of 64°F (18°C).

Is Fort William humid in summer?

Not very: summer (June – August) humidity averages 88%, and highs peak around 64°F (18°C), so it rarely feels sticky.

Does it get below freezing in Fort William?

Not on average: even in February, the coldest month, lows average 35°F (2°C). Individual cold snaps can still dip lower.

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