Gwynedd Weather Forecast
Gwynedd weather: 45°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
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 45°F (7°C) in Gwynedd with clear. It feels like 42°F. Today runs from 45°F to 68°F. Chance of precipitation is 6%. Sightseeing conditions score 8.3/10 - good conditions.
The best time to visit Gwynedd is July and August. 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 August. The forecast high of 68°F is 3.6°F above the 64°F typical for this month. The best window to be outside is roughly 2 PM to 5 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Gwynedd today at 9.8/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Gwynedd right now
Source: Open-Meteo. Updated 8:01 PM, Aug 23 local time.
See the Gwynedd forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Gwynedd
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | 🌤️ Mainly clear | 68° / 45° | 6% | 8 mph | 5 |
| Mon, Aug 24 | ☁️ Overcast | 71° / 54° | 3% | 12 mph | 4 |
| Tue, Aug 25 | 🌦️ Drizzle | 69° / 55° | 33% · 0,2 in | 13 mph | 4 |
| Wed, Aug 26 | 🌦️ Light drizzle | 73° / 59° | 82% · 0,0 in | 10 mph | 4 |
| Thu, Aug 27 | 🌧️ Heavy drizzle | 66° / 58° | 98% · 0,3 in | 10 mph | 5 |
| Fri, Aug 28 | 🌦️ Light rain | 60° / 57° | 88% · 0,9 in | 17 mph | 5 |
| Sat, Aug 29 | 🌦️ Drizzle | 61° / 57° | 89% · 0,3 in | 13 mph | 3 |
| Sun, Aug 30 | 🌦️ Drizzle | 62° / 55° | 84% · 0,2 in | 10 mph | 3 |
| Mon, Aug 31 | 🌥️ Fog | 66° / 54° | 82% | 7 mph | 4 |
| Tue, Sep 1 | 🌦️ Light drizzle | 65° / 53° | 63% · 0,0 in | 8 mph | 1 |
| Wed, Sep 2 | 🌥️ Fog | 64° / 48° | 61% | 4 mph | 5 |
| Thu, Sep 3 | 🌦️ Light showers | 61° / 53° | 72% · 0,6 in | 14 mph | 4 |
| Fri, Sep 4 | 🌦️ Light showers | 63° / 59° | 71% · 0,4 in | 20 mph | 3 |
| Sat, Sep 5 | 🌦️ Light drizzle | 63° / 55° | 69% · 0,1 in | 13 mph | 4 |
| Sun, Sep 6 | ☀️ Clear sky | -- / -- | — | -- | 3 |
| Mon, Sep 7 | ☀️ Clear sky | -- / -- | — | -- | — |
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).
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.
Air quality and pollen in Gwynedd
Pollen today
Pollen is modelled for Europe only; other regions show no values.
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
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.
Weather by national park in Gwynedd
1 national parks mapped in this atlas
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 45°F (7°C) with clear. Humidity is 90% and wind is 4 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 8:01 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 23, 2026 at 8:01 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
