Cornwall (Newquay)
July
Weather in Cornwall for July 2026
Your guide to Cornwall weather in July - trends and predictions
In general, the average temperature in Cornwall at the beginning of July is 15.7 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 18.1 °C by the end of July.
Cornwall experiences moderate rainfall in July, with an average of 9 rainy days and a total precipitation of 71.5 mm.
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Temperatures
Rain 🌧️
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22
Dry days
9
Rainy days
0
Snow days
16°/13°
Temperatures
23 km/h
Avg max wind
82 %
Avg humidity
Cornwall Weather July
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Temperatures trend during July in Cornwall
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July weather in Cornwall day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jul. |  Patchy rain possible | 16° /13° | 0.4 mm | 4 | |
| 2 Jul. | Patchy rain possible | 15° /12° | 0.2 mm | 4 | |
| 3 Jul. | Patchy rain possible | 16° /12° | 0.4 mm | 4 | |
| 4 Jul. | Patchy rain possible | 16° /13° | 0.4 mm | 4 | |
| 5 Jul. | Light rain shower | 16° /13° | 6.6 mm | 4 | |
| 6 Jul. | Light rain shower | 15° /13° | 3.6 mm | 4 | |
| 7 Jul. |  Patchy light drizzle | 16° /13° | 2.4 mm | 4 | |
| 8 Jul. |  Heavy rain | 16° /12° | 12.3 mm | 4 | |
| 9 Jul. | Patchy rain possible | 18° /14° | 0.3 mm | 4 | |
| 10 Jul. |  Partly cloudy | 19° /14° | 0.1 mm | 6 | |
| 11 Jul. | Patchy rain possible | 19° /15° | 0.1 mm | 5 | |
| 12 Jul. | Light rain shower | 19° /15° | 2.8 mm | 5 | |
| 13 Jul. | Patchy rain possible | 19° /14° | 0.5 mm | 5 | |
| 14 Jul. | Patchy rain possible | 17° /13° | 0.9 mm | 4 | |
| 15 Jul. | Light rain shower | 18° /14° | 1.9 mm | 4 | |
| 16 Jul. | Patchy rain possible | 18° /14° | 1.6 mm | 4 | |
| 17 Jul. | Patchy rain possible | 19° /14° | 0.3 mm | 5 | |
| 18 Jul. |  Overcast | 19° /14° | 0.1 mm | 4 | |
| 19 Jul. | Patchy rain possible | 19° /14° | 2.2 mm | 4 | |
| 20 Jul. | Light rain shower | 17° /15° | 8.6 mm | 4 | |
| 21 Jul. | Patchy rain possible | 17° /14° | 1.6 mm | 4 | |
| 22 Jul. | Patchy rain possible | 18° /15° | 1.2 mm | 4 | |
| 23 Jul. | Patchy rain possible | 17° /14° | 0.3 mm | 4 | |
| 24 Jul. | Light drizzle | 18° /14° | 0.5 mm | 4 | |
| 25 Jul. | Light rain shower | 18° /14° | 1.2 mm | 4 | |
| 26 Jul. | Patchy rain possible | 17° /14° | 0.3 mm | 4 | |
| 27 Jul. | Patchy rain possible | 17° /14° | 0.6 mm | 4 | |
| 28 Jul. |  Sunny | 18° /14° | 0.2 mm | 5 | |
| 29 Jul. | Overcast | 18° /14° | 0.8 mm | 4 | |
| 30 Jul. | Partly cloudy | 19° /15° | 0.2 mm | 5 | |
| 31 Jul. | Sunny | 20° /16° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Cornwall in July 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 July - FAQ
What are the expected maximum and minimum temperatures in Cornwall during July?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Cornwall during July?
Moderate rainfall is anticipated in Cornwall during July, with a total of 71.5 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Cornwall during July?
The average wind speed in Cornwall during July is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
Cornwall water temperatures in July
The average water temperature of the Atlantic Ocean near Cornwall in July is 15.2 °C. At the beginning of July temperatures are around 15.2 °C; by the end of the month they stay fairly steady and reach 15.2 °C.
- What is the water temperature in Cornwall in July?
- The average water temperature in Cornwall in July is 15.2 °C.
- Can you swim in Cornwall in July?
- Brisk: quick dips and active swimming are fine, but pack a 2–3 mm spring suit if you plan longer sessions or early-morning outings.
July rainfall patterns in Cornwall
Explore the daily rainfall trends and prepare for Cornwalls July weather 💧
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