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Now · 9:53 PM

Llanrwst Weather & Hourly Forecast

United Kingdom · Wales · LL24 0ZF

Light rain
10°C
Light rain
Feels like: 9°C
💧 Humidity 97% 🌡 Pressure 1018 hPa 💨 Wind 6 km/h 👁 Visibility 9.7 km Clouds 99% ☀️ UV index 0.0 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Llanrwst

Today
Light rain · 10:00 PM Light rain
10° 💧 0.3 mm 💨 6 km/h H 97%1018 hPa
Tomorrow
Mist at night · 1:00 AM Mist at night
10° 💧 0.3 mm 💨 5 km/h H 99%1019 hPa
Light rain · 4:00 AM Light rain
10° 💧 0.3 mm 💨 7 km/h H 99%1020 hPa
Fog · 7:00 AM Fog
10° 💧 0.4 mm 💨 8 km/h H 99%1020 hPa
Light rain · 10:00 AM Light rain
12° 💧 0.9 mm 💨 11 km/h H 93%1021 hPa
Light rain · 1:00 PM Light rain
14° 💧 0.3 mm 💨 12 km/h H 79%1020 hPa
Overcast · 4:00 PM Overcast
13° 💧 0.1 mm 💨 16 km/h H 77%1019 hPa
Overcast · 7:00 PM Overcast
11° 💧 0.2 mm 💨 17 km/h H 87%1017 hPa
Light rain · 10:00 PM Light rain
12° 💧 0.2 mm 💨 19 km/h H 95%1014 hPa
Thursday
Overcast night · 1:00 AM Overcast night
11° 💧 1.5 mm 💨 23 km/h H 96%1011 hPa
Light rain · 4:00 AM Light rain
12° 💧 2.6 mm 💨 20 km/h H 98%1009 hPa
Mostly cloudy · 7:00 AM Mostly cloudy
11° 💧 0.2 mm 💨 17 km/h H 97%1009 hPa
Light rain · 10:00 AM Light rain
11° 💧 0.8 mm 💨 18 km/h H 91%1009 hPa
Light rain · 1:00 PM Light rain
13° 💧 0.9 mm 💨 22 km/h H 79%1009 hPa
Light rain · 4:00 PM Light rain
12° 💧 0.7 mm 💨 21 km/h H 81%1009 hPa
Light rain · 7:00 PM Light rain
11° 💧 0.1 mm 💨 17 km/h H 86%1009 hPa

In Llanrwst and, more broadly, across Conwy: The evening will be under clear skies with temperatures remaining cool, ranging from 15 to 15 degrees Celsius. A slight chance of rain exists, with an expected accumulation of around 1.7 mm, and the likelihood of precipitation reaching its maximum. Winds will be moderate from the northwest, averaging up to 14 mph, with gusts potentially reaching 24 mph. It may feel a bit breezy as the night progresses, so it’s advisable to keep an umbrella handy just in case. Conditions will remain relatively stable for the next few hours, though the presence of some rain and the gusty winds could cause a slight chill in the air. Overall, expect a clear yet breezy evening with cool temperatures.

15-Day Weather Outlook for Llanrwst

TomorrowTomorrow Overcast Overcast 14°/ 💧 None 💨 19 km/h
Thursday, Sep 17Thu Sep 17 Mostly cloudy Mostly cloudy 13°/10° 💧 None 💨 25 km/h
Friday, Sep 18Fri Sep 18 Light rain Light rain 16°/ 💧 22 mm 💨 35 km/h
Saturday, Sep 19Sat Sep 19 Mostly cloudy Mostly cloudy 17°/14° 💧 0.8 mm 💨 27 km/h
Sunday, Sep 20Sun Sep 20 Partly cloudy Partly cloudy 15°/12° 💧 0.0 mm 💨 26 km/h
Monday, Sep 21Mon Sep 21 Partly cloudy Partly cloudy 20°/12° 💧 0.0 mm 💨 16 km/h
Tuesday, Sep 22Tue Sep 22 Overcast Overcast 17°/16° 💧 0.1 mm 💨 16 km/h
Wednesday, Sep 23Wed Sep 23 Light rain Light rain 14°/13° 💧 1.7 mm 💨 7 km/h
Thursday, Sep 24Thu Sep 24 Partly cloudy Partly cloudy 19°/11° 💧 None 💨 16 km/h
Friday, Sep 25Fri Sep 25 Overcast Overcast 17°/12° 💧 0.7 mm 💨 7 km/h
Saturday, Sep 26Sat Sep 26 Partly cloudy Partly cloudy 17°/12° 💧 None 💨 9 km/h
Sunday, Sep 27Sun Sep 27 Partly cloudy Partly cloudy 20°/15° 💧 0.1 mm 💨 19 km/h
Monday, Sep 28Mon Sep 28 Overcast Overcast 16°/11° 💧 0.1 mm 💨 10 km/h
Tuesday, Sep 29Tue Sep 29 Mostly cloudy Mostly cloudy 15°/11° 💧 1.6 mm 💨 18 km/h
Wednesday, Sep 30Wed Sep 30 Partly cloudy Partly cloudy 16°/ 💧 0.1 mm 💨 8 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Llanrwst

Vertical axis: °C · Color based on temperature
Light rain at 10:00 PM
10° Today 10:00 PM
Light rain at 11:00 PM
11° 11:00 PM
Light rain at 12:00 AM
11° 12:00 AM
Mist at night at 1:00 AM
10° 1:00 AM
Fog at night at 2:00 AM
Tomorrow 2:00 AM
Light rain at 3:00 AM
10° 3:00 AM
Light rain at 4:00 AM
10° 4:00 AM
Light rain at 5:00 AM
10° 5:00 AM
Mist at night at 6:00 AM
10° Tomorrow 6:00 AM
Fog at 7:00 AM
10° 7:00 AM
Light rain at 8:00 AM
10° 8:00 AM
Light rain at 9:00 AM
11° 9:00 AM
Light rain at 10:00 AM
12° Tomorrow 10:00 AM
Light rain at 11:00 AM
12° 11:00 AM
Light rain at 12:00 PM
13° 12:00 PM
Light rain at 1:00 PM
14° 1:00 PM
Light rain at 2:00 PM
13° Tomorrow 2:00 PM
Overcast at 3:00 PM
13° 3:00 PM
Overcast at 4:00 PM
13° 4:00 PM
Mostly cloudy at 5:00 PM
13° 5:00 PM
Mostly cloudy at 6:00 PM
12° Tomorrow 6:00 PM
Overcast at 7:00 PM
11° 7:00 PM
Overcast night at 8:00 PM
11° 8:00 PM
Light rain at 9:00 PM
11° 9:00 PM
Light rain at 10:00 PM
12° Tomorrow 10:00 PM
Mostly cloudy night at 11:00 PM
11° 11:00 PM
Mostly cloudy night at 12:00 AM
11° 12:00 AM
Overcast night at 1:00 AM
11° 1:00 AM
Light rain at 2:00 AM
12° Thursday 2:00 AM
Light rain at 3:00 AM
12° 3:00 AM
Light rain at 4:00 AM
12° 4:00 AM
Light rain at 5:00 AM
12° 5:00 AM
Light rain at 6:00 AM
12° Thursday 6:00 AM
Mostly cloudy at 7:00 AM
11° 7:00 AM
Partly cloudy at 8:00 AM
10° 8:00 AM
Light rain at 9:00 AM
11° 9:00 AM
Light rain at 10:00 AM
11° Thursday 10:00 AM
Light rain at 11:00 AM
12° 11:00 AM
Light rain at 12:00 PM
12° 12:00 PM
Light rain at 1:00 PM
13° 1:00 PM
Light rain at 2:00 PM
13° Thursday 2:00 PM
Light rain at 3:00 PM
12° 3:00 PM
Light rain at 4:00 PM
12° 4:00 PM
Light rain at 5:00 PM
12° 5:00 PM
Light rain at 6:00 PM
12° Thursday 6:00 PM
Light rain at 7:00 PM
11° 7:00 PM
Mostly clear night at 8:00 PM
10° 8:00 PM
Mostly clear night at 9:00 PM
10° 9:00 PM
Mostly clear night at 10:00 PM
10° Thursday 10:00 PM
Mostly clear night at 11:00 PM
10° 11:00 PM
Partly cloudy night at 12:00 AM
10° 12:00 AM
Mostly clear night at 1:00 AM
10° 1:00 AM
Partly cloudy night at 2:00 AM
Friday 2:00 AM
Partly cloudy night at 3:00 AM
3:00 AM
Mostly cloudy night at 4:00 AM
4:00 AM
Overcast night at 5:00 AM
5:00 AM
Overcast night at 6:00 AM
Friday 6:00 AM
Overcast at 7:00 AM
7:00 AM
Overcast at 8:00 AM
10° 8:00 AM
Mostly cloudy at 9:00 AM
11° 9:00 AM
Overcast at 10:00 AM
11° Friday 10:00 AM
Overcast at 11:00 AM
12° 11:00 AM
Overcast at 12:00 PM
12° 12:00 PM
Light rain at 1:00 PM
12° 1:00 PM
Light rain at 4:00 PM
14° Friday 4:00 PM
Overcast at 7:00 PM
16° 7:00 PM
Mostly cloudy night at 10:00 PM
16° 10:00 PM
Mostly cloudy night at 1:00 AM
16° 1:00 AM
Mostly cloudy night at 4:00 AM
16° Saturday 4:00 AM
Mostly cloudy at 7:00 AM
16° 7:00 AM
Overcast at 10:00 AM
16° 10:00 AM
Overcast at 1:00 PM
17° 1:00 PM
Mostly cloudy at 4:00 PM
16° Saturday 4:00 PM
Sunny at 7:00 PM
15° 7:00 PM
Mostly cloudy night at 10:00 PM
14° 10:00 PM
Partly cloudy night at 1:00 AM
13° 1:00 AM
Partly cloudy night at 4:00 AM
12° Sunday 4:00 AM
Mostly sunny at 7:00 AM
12° 7:00 AM
Mostly sunny at 10:00 AM
14° 10:00 AM
Mostly sunny at 1:00 PM
15° 1:00 PM
Partly cloudy at 4:00 PM
15° Sunday 4:00 PM
Partly cloudy at 7:00 PM
13° 7:00 PM
Partly cloudy night at 10:00 PM
12° 10:00 PM
Partly cloudy night at 1:00 AM
12° 1:00 AM
Partly cloudy night at 4:00 AM
14° Monday 4:00 AM
Partly cloudy at 7:00 AM
15° 7:00 AM
Overcast at 10:00 AM
17° 10:00 AM
Partly cloudy at 1:00 PM
20° 1:00 PM
Mostly cloudy at 7:00 PM
17° Monday 7:00 PM
Partly cloudy night at 1:00 AM
17° 1:00 AM
Partly cloudy at 7:00 AM
16° 7:00 AM
Overcast at 1:00 PM
17° 1:00 PM
Partly cloudy at 7:00 PM
16° Tuesday 7:00 PM
Overcast night at 1:00 AM
14° 1:00 AM
Light rain at 7:00 AM
13° 7:00 AM
Overcast at 1:00 PM
14° 1:00 PM
Overcast at 7:00 PM
13° Wednesday 7:00 PM
Partly cloudy night at 1:00 AM
11° 1:00 AM
Overcast night at 7:00 AM
11° 7:00 AM
Mostly cloudy at 1:00 PM
19° 1:00 PM
Overcast at 7:00 PM
16° Thursday 7:00 PM
Clear night at 1:00 AM
12° 1:00 AM
Overcast night at 7:00 AM
12° 7:00 AM
Overcast at 1:00 PM
17° 1:00 PM
Overcast at 7:00 PM
14° Friday 7:00 PM
Partly cloudy night at 1:00 AM
14° 1:00 AM
Overcast night at 7:00 AM
12° 7:00 AM
Overcast at 1:00 PM
17° 1:00 PM
Overcast at 7:00 PM
15° Saturday 7:00 PM
Overcast night at 1:00 AM
15° 1:00 AM
Overcast night at 7:00 AM
15° 7:00 AM
Overcast at 1:00 PM
20° 1:00 PM
Partly cloudy at 7:00 PM
17° Sunday 7:00 PM
Overcast night at 1:00 AM
14° 1:00 AM
Overcast night at 7:00 AM
11° 7:00 AM
Overcast at 1:00 PM
16° 1:00 PM
Overcast at 7:00 PM
14° Monday 7:00 PM
Overcast night at 1:00 AM
13° 1:00 AM
Partly cloudy night at 7:00 AM
11° 7:00 AM
Mostly cloudy at 1:00 PM
15° 1:00 PM
Mostly clear night at 7:00 PM
12° Tuesday 7:00 PM
Mostly clear night at 1:00 AM
10° 1:00 AM
Overcast night at 7:00 AM
7:00 AM
Partly cloudy at 1:00 PM
16° 1:00 PM

AIR QUALITY FORECAST

Air Quality Forecast for Llanrwst

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 10:00 PM
PM2.5 Fine particles Good 0,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 0,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 75,4µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Llanrwst

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 3,0Moderate 🙂Fair
Tomorrow UV 2,9Low 🙂Fair
Thursday UV 2,1Low 🙂Fair
Friday UV 2,4Low 🙂Fair
Saturday UV 3,3Moderate 🙂Fair
Sunday UV 5,0Moderate Unavailable
Monday UV 5,0Moderate Unavailable
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Llanrwst

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 10:00 PM 11:00 PM 12:00 AM 1:00 AM Tomorrow 2:00 AM 3:00 AM 4:00 AM 5:00 AM Tomorrow 6:00 AM 7:00 AM 8:00 AM 9:00 AM Tomorrow 10:00 AM 11:00 AM 12:00 PM 1:00 PM Tomorrow 2:00 PM 3:00 PM 4:00 PM 5:00 PM Tomorrow 6:00 PM 7:00 PM 8:00 PM 9:00 PM Tomorrow 10:00 PM 11:00 PM 12:00 AM 1:00 AM Thursday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Thursday 6:00 AM 7:00 AM 8:00 AM 9:00 AM Thursday 10:00 AM 11:00 AM 12:00 PM 1:00 PM Thursday 2:00 PM 3:00 PM 4:00 PM 5:00 PM Thursday 6:00 PM 7:00 PM 8:00 PM 9:00 PM Thursday 10:00 PM 11:00 PM 12:00 AM 1:00 AM Friday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Friday 6:00 AM 7:00 AM 8:00 AM 9:00 AM Friday 10:00 AM 11:00 AM 12:00 PM 1:00 PM Friday 4:00 PM 7:00 PM 10:00 PM 1:00 AM Saturday 4:00 AM 7:00 AM 10:00 AM 1:00 PM Saturday 4:00 PM 7:00 PM 10:00 PM 1:00 AM Sunday 4:00 AM 7:00 AM 10:00 AM 1:00 PM Sunday 4:00 PM 7:00 PM 10:00 PM 1:00 AM Monday 4:00 AM 7:00 AM 10:00 AM 1:00 PM Monday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Tuesday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Wednesday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Thursday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Friday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Saturday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Sunday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Monday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Tuesday 7:00 PM 1:00 AM 7:00 AM 1:00 PM
Sustained wind Max gusts
NIGHT SKY · LLANRWST, WALES

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

51/100Best-hour score
BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 9:33 PM–4:49 AM
Cloud cover 52% Real hourly forecast for the best viewing hour.
Moonlight 18% Waxing Crescent · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 41° high at the best hour.
Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min43%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Llanrwst were last refreshed today at 9:53 PM. The current forecast period extends through 17/09/2026 at 7:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.