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Weather in Cornwall for June 2026

Your guide to Cornwall weather in June - trends and predictions

    Temperatures

  • Until now, June 2026 in Cornwall has been nearly identical to the historical average, with a temperature of 14.6 °C (showing only a slight deviation of -0.2 °C).

  • The forecast for the next days in Cornwall predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in Cornwall at the beginning of June is 14.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21 °C by the end of June.

    • Rain 🌧️

  • The climate of Cornwall in June is notably wet, with an average of 13 rainy days, and a total of 46.7 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/12°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Cornwall Weather June

Move between months or click on a day
May
July
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
15°
2
Partly cloudy
14°
3
Patchy rain possible
15°
4
Patchy rain possible
14°
5
Patchy rain possible
14°
6
Patchy rain possible
13°
7
Patchy rain possible
15°
8
Patchy rain possible
14°
9
Partly cloudy
14°
10
Patchy rain possible
14°
11
Patchy rain possible
15°
12
Patchy rain possible
16°
13
Light rain shower
15°
14
Light rain shower
16°
15
Patchy rain possible
15°
16
Light rain shower
16°
17
Patchy rain possible
17°
18
Overcast
16°
19
Patchy rain possible
19°
20
Patchy rain possible
16°
21
Sunny
19°
22
Sunny
21°
23
Sunny
21°
24
Sunny
24°
25
Sunny
23°
26
Sunny
25°
27
Sunny
24°
28
Partly cloudy
19°
29
Patchy rain possible
15°
30
Sunny
17°

Temperatures trend during June in Cornwall

See the weather trend as well as the moving average line

June weather in Cornwall day by day

Click on a date for more information
May July
Date Weather Temperatures Rain UV More
1 Jun. Sunny
Sunny
 15° /11° 6.5 mm 3
2 Jun. Partly cloudy
Partly cloudy
 14° /11° 1.4 mm 4
3 Jun. Patchy rain possible
Patchy rain possible
 15° /11° 2.8 mm 3
4 Jun. Patchy rain possible
Patchy rain possible
 14° /10° 5.2 mm 3
5 Jun. Patchy rain possible
Patchy rain possible
 14° /10° 4.5 mm 3
6 Jun. Patchy rain possible
Patchy rain possible
 13° /11° 6.2 mm 3
7 Jun. Patchy rain possible
Patchy rain possible
 15° /11° 3.6 mm 3
8 Jun. Patchy rain possible
Patchy rain possible
 14° /11° 3.6 mm 3
9 Jun. Partly cloudy
Partly cloudy
 14° /11° 1.5 mm 4
10 Jun. Patchy rain possible
Patchy rain possible
 14° /11° 1.6 mm 4
11 Jun. Patchy rain possible
Patchy rain possible
 15° /10° 1.9 mm 3
12 Jun. Patchy rain possible
Patchy rain possible
 16° /12° 2.2 mm 4
13 Jun. Light rain shower
Light rain shower
 15° /11° 5.4 mm 5
14 Jun. Light rain shower
Light rain shower
 16° /11° 3.1 mm 5
15 Jun. Patchy rain possible
Patchy rain possible
 15° /12° 2 mm 5
16 Jun. Light rain shower
Light rain shower
 16° /12° 1.4 mm 4
17 Jun. Patchy rain possible
Patchy rain possible
 17° /12° 0.7 mm 3
18 Jun. Overcast
Overcast
 16° /12° 0 mm 5
19 Jun. Patchy rain possible
Patchy rain possible
 19° /15° 0.2 mm 7.3
20 Jun. Patchy rain possible
Patchy rain possible
 16° /13° 0.2 mm 6.3
21 Jun. Sunny
Sunny
 19° /13° 0 mm 7.7
22 Jun. Sunny
Sunny
 21° /16° 0 mm 7.6
23 Jun. Sunny
Sunny
 21° /17° 0 mm 5
24 Jun. Sunny
Sunny
 24° /18° 0 mm 6
25 Jun. Sunny
Sunny
 23° /19° 0 mm 6
26 Jun. Sunny
Sunny
 25° /18° 0 mm 6
27 Jun. Sunny
Sunny
 24° /18° 0 mm 6
28 Jun. Partly cloudy
Partly cloudy
 19° /15° 0.1 mm 5
29 Jun. Patchy rain possible
Patchy rain possible
 15° /13° 0.5 mm 3
30 Jun. Sunny
Sunny
 17° /13° 0 mm 5
Next
Important Notice
Our weather forecast for Cornwall in June is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cornwall forecast closer to your planned date for the most up-to-date weather information.
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Cornwall in June - FAQ

What are the expected maximum and minimum temperatures in Cornwall during June?

Enjoy moderate daytime temperatures of up to 16° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Cornwall during June?

In June, Cornwall can expect light to moderate rainfall, totaling 46.7 mm across approximately 13 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Cornwall during June?

The average wind speed in Cornwall during June is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

Cornwall water temperatures in June

The average water temperature of the Atlantic Ocean near Cornwall in June is 11.8 °C. At the beginning of June temperatures are around 11.7 °C; by the end of the month they get warmer and reach 12.7 °C.

What is the water temperature in Cornwall in June?
The average water temperature in Cornwall in June is 11.8 °C.
Can you swim in Cornwall in June?
Dangerously cold water: hypothermia risk is high. Only experienced cold-water swimmers with proper gear should consider entering.

June rainfall patterns in Cornwall

Explore the daily rainfall trends and prepare for Cornwalls June weather 💧
Typically, Cornwall has 13 rainy days in June with a total of 46.7 mm of rainfall.

UV exposure in Cornwall during June

Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️
Top locations in Cornwall
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FalmouthLooeNewquayPenzancePerranporthSt AustellSt IvesTruro
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Location coordinates Where is Cornwall?

Get accurate weather forecasts for Cornwall, located at latitude 50.416 and longitude -5.073. Stay updated with localized weather information tailored for Cornwall.

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