Cornwall in June
The weather in June
In June, Cornwall averages daytime highs of 19° and night-time lows of 11° — mild weather by day. Expect around 102 mm of precipitation spread over about 15 wet days, with average cloud cover near 41%.
Days are 5.4° warmer than in May on average, and July is warmer again by about 3.9°. The sea averages 11°, too cold for most swimmers.
June scores 62/100 — fair conditions for sightseeing — and ranks 4th of the twelve months for Cornwall. For the most comfortable weather, consider July, August and September instead.
Around the middle of the month the sun rises at 05:21 and sets at 21:07 local time, giving 15 h 46 min of daylight. Days lengthen by 12 minutes over the month.
Why 62/100?
How the score for June is builtBeach score this month: 12/100 (adds sea temperature and heat).
Comfort peaks for daytime highs between 18° and 25°C (64–77°F).
Around Cornwall this month
Charlottetown
Summerside
Canada's best in June
Midland
Whitchurch–Stouffville
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Cornwall in June: quick answers
Is June a good time to visit Cornwall?
June scores 62/100 for Cornwall, which we rate as fair. Average highs are 19°C with 15 wet days.
How warm is Cornwall in June?
Daytime highs average 19°C and night-time lows 11°C in June.
Does it rain a lot in Cornwall in June?
Cornwall receives about 102 mm of precipitation in June, falling on around 15 days.
Can you swim in Cornwall in June?
The sea averages 11°C in June, cold for most swimmers.