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.
The climate of Cornwall in July is notably wet, with an average of 13 rainy days, and a total of 53.5 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
18
Dry days
13
Rainy days
0
Snow days
17°/14°
Temperatures
24 km/h
Avg max wind
81 %
Avg humidity
Cornwall Weather July
Move between months or click on a day
Temperatures trend during July in Cornwall
See the weather trend as well as the moving average line
July weather in Cornwall day by day
Click on a date for more information
| 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° /15° | 0.9 mm | 5 | |
| Next | |||||
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.
Change Month
Cornwall in July - FAQ
What are the expected maximum and minimum temperatures in Cornwall during July?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 14°. 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 53.5 mm spread over approximately 13 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 24 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 💧
Top locations in Cornwall
Select a location for an accurate weather forecast
More Locations Quick links
More Cornwall weather pages
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.