Gwynedd Climate and Average Weather
Climate of Gwynedd: average temperatures, rainfall and seasons month by month.
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 | 65° | 54° | 6,7 in | ★★★☆☆ |
| September | 60° | 51° | 7,3 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).
Recent extremes in Gwynedd
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
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 | 45 in |
| Merseyside | 53 mi | 52°F | +34°F warmer | 45 in |
| Greater Manchester | 82 mi | 52°F | +34°F warmer | 47 in |
| Manchester | 82 mi | 52°F | +34°F warmer | 47 in |
| Lancashire | 84 mi | 50°F | about the same | 59 in |
Climate by national park in Gwynedd
1 national parks mapped in this atlas
Best time to visit Gwynedd
Go in July. 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 this means for Gwynedd
Today is slightly warmer than average for October. The forecast high of 60°F is 4.5°F above the 56°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 53°F.
What to pack, what to skip
- A packable rain shell - 7 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.
Summary
Gwynedd is a county in Wales. Gwynedd is a county or metropolitan area in the United Kingdom. It has a population of about 120.000.
Right now it is 49°F (9°C) in Gwynedd with clear. It feels like 46°F. Today runs from 42°F to 60°F. Chance of precipitation is 100%. Sightseeing conditions score 6.3/10 - fair - plan around the weather.
The best time to visit Gwynedd is July. The climate is temperate. January, November and December tend to be the least comfortable months. July is the warmest month with average highs near 65°F, while January is the coldest with lows near 35°F.
The closest major airport is Dublin Airport (DUB), about 100 mi away. Nearby highlights include Snowdonia National Park, Lake District National Park, Stonehenge, Avebury and Associated Sites and Stonehenge.
In plain terms. Today is slightly warmer than average for October. The forecast high of 60°F is 4.5°F above the 56°F typical for this month. The best window to be outside is roughly 10 AM to 1 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Gwynedd today at 8.7/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Gwynedd
| Type | County |
|---|---|
| Region | Wales |
| Country | United Kingdom |
| Continent | Europe |
| Coordinates | 52°55′40.8″N 3°59′56″W (52.928, -3.9989) |
| Population | 120.000 |
| Local time | 12:29 AM (UTC+01:00) |
| Best months | July |
| Climate | Temperate |
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.
Explore Gwynedd
Every topic we hold for this place, and the same topic for the places around it.
Climate 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 49°F (9°C) with clear. Humidity is 81% and wind is 3 mph.
When is the best time to visit Gwynedd?
July 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 12:29 AM.
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 October 4, 2026 at 12:29 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
