Weather in Cornwall for July 2026
Until now, July 2026 in Cornwall has been nearly identical to the historical average, with a temperature of 27.8 °C (showing only a slight deviation of 0.2 °C).
The forecast for the upcoming days in Cornwall predicts a temperature of 25.4 °C, which is slightly above the historical average.
In general, the average temperature in Cornwall at the beginning of July is 27.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.6 °C by the end of July.
Cornwall experiences heavy rainfall in July, with over 20 rainy days and an average total precipitation 136.4 mm.
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Cornwall Weather July
Temperatures trend during July in Cornwall
July weather in Cornwall day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jul. |  Moderate or heavy rain shower | 28° /18° | 14.2 mm | 7 | |
| 2 Jul. | Moderate or heavy rain shower | 27° /17° | 1.6 mm | 8 | |
| 3 Jul. |  Patchy rain possible | 28° /18° | 0.5 mm | 7 | |
| 4 Jul. | Patchy rain possible | 27° /16° | 1.5 mm | 7 | |
| 5 Jul. |  Partly cloudy | 29° /16° | 0.1 mm | 8 | |
| 6 Jul. | Partly cloudy | 29° /18° | 1.8 mm | 8 | |
| 7 Jul. | Moderate or heavy rain shower | 27° /18° | 21.3 mm | 7 | |
| 8 Jul. |  Overcast | 28° /16° | 0 mm | 7 | |
| 9 Jul. | Patchy rain possible | 27° /16° | 7.5 mm | 7 | |
| 10 Jul. | Moderate or heavy rain shower | 24° /17° | 19.2 mm | 7 | |
| 11 Jul. |  Heavy rain at times | 28° /16° | 2.7 mm | 8 | |
| 12 Jul. | Overcast | 28° /15° | 1.1 mm | 8 | |
| 13 Jul. | Moderate or heavy rain shower | 29° /18° | 6.1 mm | 7 | |
| 14 Jul. | Patchy rain possible | 29° /18° | 0.3 mm | 7 | |
| 15 Jul. | Overcast | 29° /18° | 4.3 mm | 8 | |
| 16 Jul. | Moderate or heavy rain shower | 28° /19° | 5.5 mm | 8 | |
| 17 Jul. | Patchy rain possible | 28° /16° | 4.4 mm | 7 | |
| 18 Jul. | Heavy rain at times | 24° /14° | 3.8 mm | 6 | |
| 19 Jul. | Partly cloudy | 25° /14° | 0 mm | 7 | |
| 20 Jul. |  Sunny | 28° /14° | 0 mm | 7.4 | |
| 21 Jul. | Sunny | 26° /16° | 10.2 mm | 4.6 | |
| 22 Jul. | Patchy rain possible | 18° /12° | 3.5 mm | 1.8 | |
| 23 Jul. | Sunny | 23° /11° | 0.2 mm | 7.1 | |
| 24 Jul. | Sunny | 26° /13° | 0 mm | 7 | |
| 25 Jul. | Sunny | 28° /14° | 0 mm | 7 | |
| 26 Jul. | Sunny | 30° /18° | 0 mm | 7 | |
| 27 Jul. | Patchy rain possible | 28° /20° | 4.3 mm | 6 | |
| 28 Jul. | Patchy rain possible | 20° /13° | 2.5 mm | 5 | |
| 29 Jul. | Patchy rain possible | 15° /11° | 0.3 mm | 4 | |
| 30 Jul. | Sunny | 24° /10° | 0 mm | 6 | |
| 31 Jul. | Sunny | 27° /12° | 0 mm | 7 | |
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Cornwall in July - FAQ
What are the expected maximum and minimum temperatures in Cornwall during July?
How much rainfall should be expected in Cornwall during July?
What are the typical wind conditions in Cornwall during July?
July rainfall patterns in Cornwall
UV exposure in Cornwall during July
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Where is Cornwall?Get accurate weather forecasts for Cornwall, located at latitude 45.018 and longitude -74.728. Stay updated with localized weather information tailored for Cornwall.