Temperature
Cold by day, cold at night.
47°Ftypical January high
Typical range
January climate
January in Cornwall
United Kingdom · England
Cold days.
Some tradeoffs
Daytime high
47°F
Lows around 39°F
Rain
Frequent rain
Sun
4.5 h/day
Air feel
Very dry
Sea temp
51°F
Too cold for swimming
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 14 wet days, more than in most months.
45%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine is limited, with cloud often dominating.
4.5 hJanuary sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryJanuary Heat feel
Easy airWarm airHumid air
Hourly temperature pattern
In January, afternoons feel about 36° and nights feel near 33°.
Very coldColdCoolNight hours
Clear sky
Mostly cloudy skies this month.
25%January Clear sky
Clear skyCloud
Wind pattern
Breezy January days can feel brisker in open spots.
11 mphJanuary Breezy
Sea temperature
51°FJanuary sea temp
More detailIncludes daypart comfort
Typical January day
January late afternoons are around 45°F, easing to about 43°F in early evening.
Avg temp Typical range
Morning43°F
Rain20%
Cloud76%
Humid airLow
Sun intensityMinimal
Midday46°F
Rain26%
Cloud77%
Humid airLow
Sun intensityLow
Late afternoon45°F
Rain22%
Cloud74%
Humid airLow
Sun intensityMinimal
Early evening43°F
Rain18%
Cloud72%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 47 | 39 | 3.4 | 14 | 4.5 | 88 | 51 |
| Feb | 47 | 39 | 3.0 | 12 | 6.0 | 86 | 49 |
| Mar | 50 | 40 | 2.9 | 13 | 7.7 | 84 | 49 |
| Apr | 54 | 42 | 2.9 | 13 | 10.5 | 81 | 51 |
| May | 59 | 47 | 3.2 | 13 | 11.5 | 81 | 54 |
| Jun | 64 | 52 | 3.1 | 13 | 11.8 | 82 | 58 |
| Jul | 67 | 55 | 3.2 | 13 | 11.4 | 83 | 61 |
| Aug | 66 | 55 | 3.1 | 13 | 10.5 | 85 | 63 |
| Sep | 63 | 52 | 2.6 | 11 | 9.0 | 86 | 63 |
| Oct | 58 | 49 | 3.9 | 15 | 6.7 | 88 | 60 |
| Nov | 52 | 44 | 3.6 | 15 | 5.2 | 88 | 56 |
| Dec | 48 | 40 | 3.8 | 15 | 4.2 | 88 | 53 |
Similar climates
Similar
Similar travel styleAberystwythUnited KingdomSimilar travel styleArcachonFranceSimilar travel styleBiarritzFranceSimilar travel styleBrightonUnited Kingdom
Want a side-by-side climate view? Compare Cornwall with Aberystwyth.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 11, 2026
Data & methodology