Live Weather & Forecast
Weather in Porthmadog
Cymru / Wales, United Kingdom · Real-time conditions & 3-day outlook
13°C
Feels like 12°C
56°F / Feels 53°F
Patchy rain nearby
Porthmadog, Cymru / Wales
🌞 Daytime
Updated: 2026-04-18 16:00
Humidity
62%
Wind
16.6 km/h WNW
Wind Gust
19.3 km/h
Pressure
1024 mb
Visibility
10 km
UV Index
2.3
(Low)
Precipitation
0.06 mm
Cloud Cover
0%
Dew Point
5.9°C
Wind Degree
297°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
142.9 μg/m³
NO₂
1.4 μg/m³
O₃
91 μg/m³
SO₂
1.1 μg/m³
PM 2.5
3.6 μg/m³
PM 10
8.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for Porthmadog, Cymru / Wales
12 AM
9°
Light rain shower
1 AM
9°
Light rain shower
2 AM
9°
Light rain shower
3 AM
8°
Light rain shower
4 AM
8°
Patchy rain nearby
5 AM
8°
Patchy rain nearby
6 AM
8°
Patchy rain nearby
7 AM
8°
Patchy rain nearby
8 AM
8°
Patchy rain nearby
9 AM
8°
Patchy rain nearby
10 AM
8°
Light rain shower
11 AM
9°
Patchy rain nearby
12 PM
9°
Patchy rain nearby
1 PM
9°
Patchy rain nearby
2 PM
10°
Patchy rain nearby
3 PM
10°
Patchy rain nearby
4 PM
13°
Patchy rain nearby
5 PM
11°
Patchy rain nearby
6 PM
10°
Patchy rain nearby
7 PM
10°
Patchy rain nearby
8 PM
8°
Partly Cloudy
9 PM
6°
Partly Cloudy
10 PM
6°
Clear
11 PM
5°
Clear
3-Day Forecast
Daily overview for Porthmadog, Cymru / Wales
Today
Patchy rain nearby
11°
/
5°
🌧️ 99% chance of rain
💧 Avg. humidity: 85%
💨 Max wind: 28.8 km/h
🌧️ Total precip: 2.24 mm
☀️ UV Index: 3
🌅 Sunrise: 06:12 AM
🌇 Sunset: 08:22 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Partly Cloudy
11°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 15.8 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 4.2
🌅 Sunrise: 06:09 AM
🌇 Sunset: 08:24 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Mon, Apr 20
Patchy rain nearby
11°
/
4°
🌧️ 84% chance of rain
💧 Avg. humidity: 65%
💨 Max wind: 15.1 km/h
🌧️ Total precip: 0.45 mm
☀️ UV Index: 3.5
🌅 Sunrise: 06:07 AM
🌇 Sunset: 08:25 PM
🌙 Waxing Crescent
🌑 Moon: 9% lit
Best Time to Visit Porthmadog
Plan your trip to Porthmadog, United Kingdom around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Porthmadog?
Current conditions in Porthmadog: Patchy rain nearby, temperature 13°C, humidity 62%.
What is the best time to visit Porthmadog?
The best time to visit Porthmadog is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Porthmadog?
Porthmadog is located at approximately 52.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Porthmadog?
The wettest period in Porthmadog is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Porthmadog?
For visits to Porthmadog during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Porthmadog in?
Porthmadog is located in United Kingdom, in the state of Cymru / Wales.
What are the public holidays in Porthmadog in 2026?
View the 2026 public holidays for Porthmadog on our Holidays page.
What are the GPS coordinates used for the weather forecast in Porthmadog?
The weather forecast for Porthmadog uses coordinates 52.9256, -4.1297.