Keswick (Lake District) weather in May
United Kingdom

May in Keswick: cool, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Keswick · #164 of 1383 destinations to visit in May · comfort 90/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Keswick in May
Other months in Keswick
Keswick's forum is upfront that June can go either way — hot and sunny some years, cold and wet others — and that the Lake District is one of England's wettest regions regardless, with conditions on the fells changing within minutes. Regulars still rate it a good month: long daylight into nearly 10pm leaves plenty of time for a fell walk after dinner.
Add your own note from Keswick's card on the map.
Keswick climate normals — May
| Daytime high | 17°C / 62°F | 🙂 cool |
|---|---|---|
| Nighttime low | 7°C / 44°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 76 mm / 3 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 16.1 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Keswick 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.
Peak crowdsKeswick Mountain Festival, Late-May half-term in United Kingdom, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Keswick'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 weatherKeswick's weather peaks May–July.
May includes Keswick Mountain Festival.
Best weatherFair weatherToughest weather
What's on in Keswick in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Derwentwater launch season
20 Mar – 1 Nov · usuallySummer season opensClosuresThe launches round the lake run a full timetable from spring to the end of October and a skeleton one after. The jetties for Catbells and Lodore are how most people get to those walks. Source ↗
- Festival
Keswick Mountain Festival
15–17 MayMajor festivalCrowdedA weekend of trail races, swims, talks and music on the shore of Derwentwater in mid-May, before the school holidays arrive. The town is full and the fells above it are not. Source ↗
Nearby, and something's on
Within 300 km of Keswick — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Keswick?
Keswick in May — FAQ
- Is May a good time to visit Keswick?
- May in Keswick: cool, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Keswick on SeasonMap's comfort score (90/100).
- What is the weather like in Keswick in May?
- In May, Keswick averages a daily high of 16.8°C and a low of 6.8°C, with about 76 mm of rain over roughly 13.4 rainy days.
- What is the air quality in Keswick in May?
- Keswick has a mean US Air Quality Index of about 42 in May.
Other months in Keswick
Compare Keswick in May
Warmer or cooler than Keswick in May
Similar destinations in Northern Europe — May
Within 300 km: Manchester's Whit Friday band contests around 15 May – 20 Jun, and Edinburgh's Blossom in the Meadows around 5 Apr – 5 May.