Gwynedd (Barmouth)
July
Weather in Gwynedd for July 2026
Your guide to Gwynedd weather in July - trends and predictions
So far, July 2026 in Gwynedd shows a warmer trend than usual by 3 °C.
The forecast for the next days in Gwynedd predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in Gwynedd at the beginning of July is 15.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 17.4 °C by the end of July.
Gwynedd experiences heavy rainfall in July, with over 20 rainy days and an average total precipitation 112.4 mm.
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Temperatures
Rain 🌧️
More
8
Dry days
23
Rainy days
0
Snow days
18°/11°
Temperatures
14 km/h
Avg max wind
82 %
Avg humidity
Gwynedd Weather July
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Temperatures trend during July in Gwynedd
See the weather trend as well as the moving average line
July weather in Gwynedd day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jul. |  Moderate rain at times | 16° /11° | 3.5 mm | 3 | |
| 2 Jul. |  Patchy rain possible | 15° /8° | 4.4 mm | 4 | |
| 3 Jul. | Patchy rain possible | 15° /8° | 3.9 mm | 5 | |
| 4 Jul. |  Heavy rain at times | 15° /10° | 8.1 mm | 3 | |
| 5 Jul. |  Overcast | 16° /11° | 2.3 mm | 3 | |
| 6 Jul. | Moderate or heavy rain shower | 15° /10° | 7.7 mm | 3 | |
| 7 Jul. | Moderate or heavy rain shower | 17° /10° | 3.3 mm | 5 | |
| 8 Jul. | Patchy rain possible | 19° /8° | 0.2 mm | 6 | |
| 9 Jul. | Moderate or heavy rain shower | 21° /11° | 5.8 mm | 6 | |
| 10 Jul. | Heavy rain at times | 21° /12° | 3.7 mm | 6 | |
| 11 Jul. |  Sunny | 22° /12° | 2.4 mm | 6 | |
| 12 Jul. | Sunny | 23° /12° | 1.5 mm | 6 | |
| 13 Jul. | Patchy rain possible | 21° /10° | 0.4 mm | 5 | |
| 14 Jul. | Overcast | 19° /10° | 1.5 mm | 5 | |
| 15 Jul. | Moderate or heavy rain shower | 19° /10° | 15 mm | 5 | |
| 16 Jul. | Moderate rain at times | 19° /10° | 2 mm | 5 | |
| 17 Jul. | Overcast | 19° /12° | 0.6 mm | 5 | |
| 18 Jul. | Patchy rain possible | 19° /11° | 0.7 mm | 5 | |
| 19 Jul. | Patchy rain possible | 20° /11° | 1 mm | 5 | |
| 20 Jul. | Sunny | 19° /12° | 0 mm | 6.8 | |
| 21 Jul. | Sunny | 20° /12° | 0 mm | 6.7 | |
| 22 Jul. | Sunny | 20° /11° | 0 mm | 6.5 | |
| 23 Jul. | Sunny | 19° /12° | 0 mm | 6.7 | |
| 24 Jul. | Sunny | 20° /13° | 0 mm | 6.4 | |
| 25 Jul. | Sunny | 18° /13° | 3.9 mm | 5 | |
| 26 Jul. | Patchy rain possible | 16° /13° | 7.1 mm | 4 | |
| 27 Jul. | Patchy rain possible | 17° /12° | 0.1 mm | 5 | |
| 28 Jul. | Sunny | 18° /12° | 0.1 mm | 5 | |
| 29 Jul. |  Partly cloudy | 18° /13° | 0 mm | 5 | |
| 30 Jul. | Patchy rain possible | 18° /15° | 0.5 mm | 5 | |
| 31 Jul. | Patchy rain possible | 17° /14° | 15.9 mm | 4 | |
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Important Notice
Our weather forecast for Gwynedd 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 Gwynedd forecast closer to your planned date for the most up-to-date weather information.
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Gwynedd in July - FAQ
What are the expected maximum and minimum temperatures in Gwynedd during July?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Gwynedd during July?
Significant rainfall exceeding 112.4 mm is expected in Gwynedd during July, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Gwynedd during July?
The average wind speed in Gwynedd during July is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in Gwynedd
Explore the daily rainfall trends and prepare for Gwynedds July weather 💧
Typically, Gwynedd has 23 rainy days in July with a total of 112.4 mm of rainfall.
UV exposure in Gwynedd during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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