Oban weather in May

May in Oban: cool, rainy, with clean air — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Oban🇬🇧 United Kingdom · British Isles · City78
  1. 39Jan
  2. 43Feb
  3. 58Mar
  4. 71Apr
  5. 78May
  6. 81Jun
  7. 79Jul
  8. 73Aug
  9. 65Sep
  10. 53Oct
  11. 48Nov
  12. 35Dec

#3 of 12 months in Oban · #820 of 1413 destinations to visit in May · comfort 78/100 (tier B)

Days
14°C
Nights
8°C
Wet days
15
Sun
10.1 h
Humidity
80%
Daylight
16 h
Oban, United Kingdom
Photo: A G · Pexels

Traveller notes on Oban in May

Notes from nearby Fort William (50 km away)

Oban doesn't have its own notes for May yet — these are about Fort William, close enough to share the season.

Early May is about the last of Fort William's midge-free window - they do not normally get going until late May or June and the blanket hatches wait for summer, though regulars note they have been starting earlier year on year. Ben Nevis is a separate problem. In May most of the path is clear but there are still snowfields on the summit and ice in the sheltered places, and reports describe a sunny start turning, three-quarters of the way up, into poor visibility, real cold and deep snow. Midges do not like height, so the hill is the one place you are safe from them whatever the month. The record: 15.6C days that feel like 14C, 7C nights, 14.6 precipitation days carrying 104.2mm, 9.6 hours of sun and a 16.5-hour day.
SnowfieldsOnTheSummit · May · 1 month ago · about Fort William · Read more on Tripadvisor ↗

Other months in Oban

Forum posters describe December in Oban and the wider Scottish Highlands as cold, damp and short on daylight - on a cloudy, rainy day it can feel like it barely gets light at all. Posters are direct that this isn't the tourist season, with a number of B&Bs and smaller businesses closing for the winter while their owners take their own holiday. Posters visiting nearby islands warn that up to 16 hours of darkness calls for real wet-weather gear, patience for cold and wet conditions, and something to keep you entertained indoors. Posters do note Oban itself holds up better than more remote spots thanks to its shops, bars and restaurants offering somewhere to spend the long evening hours. Posters generally rate December as genuinely challenging weather-wise for Oban, workable as a town base even if outlying island day trips become more of a gamble.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗
Forum posters call May-June the best window for this part of Scotland: long daylight hours, before peak season crowds, and often the best weather odds of the year, even if the classic 'four seasons in a day' pattern (locals joke it's sometimes three in June alone) still applies. One poster recalled a June with 'wall to wall sunshine' breaking local heat records, though that's treated as a lucky outlier rather than the norm. June is also singled out as prime timing for the boat trips out to Mull, Iona and Staffa, since smaller seasonal ferry services are still running at full schedule before they wind down later in the year.
Tripadvisor community · June · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Oban's card on the map.

Oban climate normals — May

Daytime high14°C / 56°F🙂 cool
Nighttime low8°C / 46°F
Feels like (high)12°C / 54°F
Sea temperature11°C / 52°F🥶 cold sea
Rainfall113 mm / 4.4 in🌧 rainy
Rainy days15 days
Humidity80%💦 very humid
Dew point7°C / 45°F
Sunshine10.1 h/day
Daylight16.4 h
Wind18 km/h / 11 mph
Air quality (US AQI)38🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Oban in May

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyLate-May half-term in United Kingdom, school holidays in 3 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Oban's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherOban's weather peaks May–July, best around June.

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Best weatherFair weatherToughest weather

What's on in Oban in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Midge season

    25 May – 15 Sep · usuallyInsects & disease

    West-coast midges are out from late May to about mid-September and they are worst at dusk in still, damp weather. A breeze off the sound is the only thing that reliably stops them. Source ↗

What's on around the world in May →

Nearby, and something's on

Within 300 km of Oban — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Oban?

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Oban in May — FAQ

Is May a good time to visit Oban?
May in Oban: cool, rainy, with clean air — a great time to visit. It ranks #3 of 12 months for Oban on SeasonMap's comfort score (78/100).
What is the weather like in Oban in May?
In May, Oban averages a daily high of 13.6°C and a low of 7.7°C, with about 112.9 mm of rain over roughly 15.2 rainy days.
What is the air quality in Oban in May?
Oban has a mean US Air Quality Index of about 38 in May.

Within 300 km: Isle of Skye's Skye Live on 7–9 May, and Aviemore's Ospreys at Loch Garten around 1 Apr – 31 Aug.