Gwynedd Weather Forecast
Gwynedd weather: 74°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Gwynedd weather in July
Weather map for Gwynedd
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in Gwynedd month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 43° | 35° | 7,7 in | ★☆☆☆☆ |
| February | 46° | 38° | 7,6 in | ★★☆☆☆ |
| March | 50° | 39° | 5,5 in | ★★☆☆☆ |
| April | 55° | 42° | 5,9 in | ★★★☆☆ |
| May | 60° | 47° | 4,4 in | ★★★★☆ |
| June | 62° | 52° | 7,0 in | ★★★☆☆ |
| July | 65° | 54° | 3,9 in | ★★★★☆ |
| August | 64° | 54° | 5,4 in | ★★★★☆ |
| September | 62° | 51° | 8,7 in | ★★★☆☆ |
| October | 56° | 47° | 7,9 in | ★★☆☆☆ |
| November | 49° | 41° | 9,0 in | ★★☆☆☆ |
| December | 47° | 41° | 12,1 in | ★☆☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit Gwynedd
Go in July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, November and December - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- A packable rain shell - 6 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, November and December - historically the least comfortable months here.
How Gwynedd compares with nearby places
Annual averages, and the difference against Gwynedd.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Liverpool | 53 mi | 52°F | +34°F warmer | 46 in |
| Merseyside | 53 mi | 52°F | +34°F warmer | 46 in |
| Greater Manchester | 82 mi | 52°F | +34°F warmer | 48 in |
| Manchester | 82 mi | 52°F | +34°F warmer | 48 in |
| Lancashire | 84 mi | 50°F | about the same | 59 in |
See the Gwynedd forecast by time range
Gwynedd weather - more answers
Explore Gwynedd
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Gwynedd?
Gwynedd is a county in Wales. Its coordinates are 52.928, -3.9989. It lies in Europe.
What is the weather like in Gwynedd right now?
It is currently 74°F (23°C) with partly cloudy. Humidity is 38% and wind is 9 mph.
When is the best time to visit Gwynedd?
July and August offer the most comfortable conditions in Gwynedd, which has a temperate climate. January, November and December are usually the hardest months for outdoor plans.
What time zone is Gwynedd in?
Gwynedd observes Europe/London (UTC+01:00). The local time is 7:30 PM.
How many people live in Gwynedd?
Gwynedd has a population of approximately 120.000.
What is the nearest airport to Gwynedd?
The closest airports are Dublin Airport (DUB), 100 mi away, London Heathrow Airport (LHR), 181 mi away and London Gatwick Airport (LGW), 203 mi away.
What are the top things to do in Gwynedd?
Popular options include Snowdonia National Park, Lake District National Park, Stonehenge, Avebury and Associated Sites, Stonehenge, British Museum and River Thames.
What places are in Gwynedd?
Gwynedd covers 1 places in this atlas, including Snowdonia National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (uk-regions) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 25, 2026 at 7:30 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
