Keswick (Lake District) weather by month

The best time to visit Keswick (Lake District) is May to July — 90/100 in May, 17°C and 13 rainy days. The best season is summer, June to August (86/100 on average).

The worst month is December at 53/100 — cold, soaked, clean air. See December →

Updated September 2026 · climate normals from ERA5 reanalysis

Planning the wider trip? Best time to visit United Kingdom →

Keswick🇬🇧 United Kingdom · British Isles · Trekking90
  1. 56Jan
  2. 61Feb
  3. 71Mar
  4. 81Apr
  5. 90May
  6. 89Jun
  7. 87Jul
  8. 83Aug
  9. 78Sep
  10. 68Oct
  11. 60Nov
  12. 53Dec

Best season: June to August (86/100 on average) · worst December (53/100)

Days
17°C
Nights
7°C
Wet days
13
Sun
10.6 h
Humidity
79%
Daylight
16 h
Keswick, United Kingdom
Photo: Rodion Kutsaiev · Pexels

Keswick, month by month

Comfort score out of 100 for the kind of trip Keswick is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan56D8°C15 d3 hBusy1
Feb61C8°C17 d5 hBusy1
Mar71B10°C16 d7 hShoulder2
Apr81A13°C12 d9 hPeak2
May90S17°C13 d11 hPeak2
Jun89A19°C16 d11 hBusy1
Jul87A20°C18 d10 hPeak2
Aug83A19°C18 d9 hPeak2
Sep78B17°C18 d7 hBusy2
Oct68C14°C18 d5 hBusy2
Nov60C10°C17 d3 hQuiet3
Dec53D9°C19 d2 hPeak2

What's on in Keswick through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

March
  • Easter bank holidays3–6 AprHoliday
  • Derwentwater launch season20 Mar – 1 Nov (usually)Season
May
  • Keswick Mountain Festival15–17 MayFestival
July
  • English school holidays18 Jul – 1 SepHoliday
October
  • Borrowdale in autumn5 Oct – 5 Nov (usually)Nature
November
  • Flood season1 Nov – 15 Feb (usually)Hazard
December
  • Keswick Victorian Fayre1–10 Dec (usually)Festival

Everything on in Keswick through the year →

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)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Traveller notes on Keswick

What people who have been say about the place — the year-round notes first, then month by month.

Keswick-forum threads on rainy days confirm real precipitation is a standing feature of a January visit, posters calling the forecast changeable enough to shift radically within the same day, let alone across a week. Regulars describe conditions as capable of running cold and clear with frost but no real accumulation, or mild, wet and genuinely windy, both entirely plausible in the same month. Posters call any snow that does fall as typically confined to higher ground, rarely settling for long at lake level or in town. Regulars recommend Keswick or Ambleside as the sensible base, both offering real indoor options like museums and theatre for a washout day. Posters call the Derwent Water circular and shorter walks to Catbells and Latrigg worth doing even in imperfect conditions. Regulars recommend an hourly forecast over anything issued days out. The record: 7.5C days feeling like 4C, 1.8C nights, an extraordinarily high 134.8mm across over 15 days and 90 percent humidity.
KeswickJanuaryRegular · January · 1 month ago · Read more on Tripadvisor ↗
Keswick-forum threads on likely late-February weather describe the honest answer as genuinely anything, posters calling temperatures a touch above freezing with cloud and some rain the most probable outcome, though recent years have swung as far as full snow cover below minus ten and, other years, sunny days above ten. Regulars call February the peak month locally for the likelihood of snow, though posters note rain remains the more probable single-day outcome. Posters describe daylight as genuinely limited, running from around half seven to five, the sun often dropping before official sunset behind the fells. Regulars call the Lake District's microclimates real, rain in the southern lakes compatible with sun in the north the same day. Posters recommend basing along the central corridor between Ambleside and Keswick, the one road that almost always stays open. The record: 8.4C days feeling like 4C, 2.7C nights, an extraordinarily high 138.4mm across 17 days and 87 percent humidity.
KeswickFebruaryRegular · February · 1 month ago · Read more on Tripadvisor ↗
Keswick-forum threads comparing late October and early April describe the two as surprisingly similar in unpredictability, posters calling neither month a real guarantee of settled weather. Regulars describe April as capable of genuine extremes, one visitor recalling a year where April broke records for both heat and, separately, cold and rain. Posters call six inches of snow at higher spots like Skiddaw House entirely possible even while daffodils bloom in sunshine a few miles away at valley level. Regulars recommend real layers and a proper waterproof regardless of forecast, the high fells capable of turning genuinely dangerous for anyone underprepared. Posters call bright spells a real possibility even on an otherwise grey day, weather shifting fast enough to reward patience. Regulars recommend checking a same-day forecast rather than trusting anything issued days out. The record: 12.7C days feeling like 10C, 3.7C nights, 76.3mm across over 12 days and 79 percent humidity.
KeswickAprilRegular · April · 1 month ago · Read more on Tripadvisor ↗
May in the Lakes is the month for daylight, and the forum's crowd advice is about which weekend. The first May bank holiday is the quietest of them, because there is no school week attached; late May, around the 23rd to the 25th, is English half term and genuinely crowded. The other correction regulars make is about where the crowds are - busy means the town centres, Ambleside, Bowness and to a degree Keswick, while the fells themselves can give you a full day and a handful of people. Keswick's own May fixture is the Mountain Festival. The record: 16.8C days that feel like 15C, 6.8C nights, 13.4 precipitation days carrying 76mm, 10.6 hours of sun and a 16.1-hour day.
BusyMeansTheTownCentres · May · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · June · 1 month ago · Read more on Tripadvisor ↗
Keswick-forum threads on September weather are direct conditions here genuinely can go either way, early-month stretches sometimes delivering still, settled days while other years bring a properly unsettled run, nothing guaranteed. Posters call the fells a real factor for hikers, conditions at higher elevation running noticeably harsher than the valley floor, a proper fleece, gloves and a warm hat standing advice even for a lunch stop. Regulars are consistent layering is the only real strategy that works, outer layers needing to be genuinely waterproof rather than just warm given how often a shower rolls through. Posters call September on average a reasonably favorable month by Lake District standards, though individual trips can land on either extreme. Regulars recommend checking a specialist mountain forecast before any serious fell walk. The record: 17.3C days feeling like 16C, 9.1C nights, an extraordinarily high 178mm across nearly 18 days and 85 percent humidity.
KeswickSeptemberRegular · September · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe December low-level temperatures typically in the 3-9C range, with rain more likely earlier in the month and the Christmas week itself often turning cold, crisp and dry by comparison. Posters note a real chance of snowfall in the popular tourist areas, though nothing severe enough to typically cause snow-in situations, while snow and ice at low elevation remain uncommon overall - rain and low cloud are the bigger practical obstacle for higher-level walks, though dry, bright days are just as plausible. Posters consistently recommend Keswick as an excellent, well-located and comparatively affordable base for a December Lake District visit, with easy access to the wider area from the nearby motorway. Posters do flag short daylight hours, with darkness setting in by around 4pm.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗

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