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Now · 10:07 AM

Porth Weather & Hourly Forecast

United Kingdom · Wales · CF37 2LL

Overcast
17°C
Overcast
Feels like: 16°C
💧 Humidity 90% 🌡 Pressure 1017 hPa 💨 Wind 10 km/h 👁 Visibility 29.0 km Clouds 100% ☀️ UV index 1.5 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Porth

Today
Overcast · 11:00 AM Overcast
17° 💧 None 💨 14 km/h H 84%1018 hPa
Overcast · 2:00 PM Overcast
17° 💧 None 💨 16 km/h H 70%1018 hPa
Overcast · 5:00 PM Overcast
16° 💧 0.0 mm 💨 19 km/h H 69%1017 hPa
Overcast night · 8:00 PM Overcast night
15° 💧 0.5 mm 💨 18 km/h H 74%1016 hPa
Light rain · 11:00 PM Light rain
14° 💧 1.7 mm 💨 21 km/h H 90%1015 hPa
Tomorrow
Light rain · 2:00 AM Light rain
13° 💧 2.3 mm 💨 18 km/h H 97%1013 hPa
Light rain · 5:00 AM Light rain
13° 💧 3.4 mm 💨 15 km/h H 98%1011 hPa
Light rain · 8:00 AM Light rain
13° 💧 0.5 mm 💨 11 km/h H 97%1010 hPa
Mostly cloudy · 11:00 AM Mostly cloudy
14° 💧 0.2 mm 💨 13 km/h H 85%1011 hPa
Mostly sunny · 2:00 PM Mostly sunny
16° 💧 None 💨 20 km/h H 62%1010 hPa
Mostly sunny · 5:00 PM Mostly sunny
15° 💧 0.0 mm 💨 20 km/h H 60%1011 hPa
Clear night · 8:00 PM Clear night
13° 💧 0.0 mm 💨 15 km/h H 76%1012 hPa
Clear night · 11:00 PM Clear night
12° 💧 0.0 mm 💨 19 km/h H 81%1013 hPa
Wednesday
Mostly clear night · 2:00 AM Mostly clear night
11° 💧 0.0 mm 💨 17 km/h H 88%1014 hPa
Partly cloudy night · 5:00 AM Partly cloudy night
10° 💧 0.0 mm 💨 16 km/h H 90%1015 hPa
Partly cloudy · 8:00 AM Partly cloudy
12° 💧 0.1 mm 💨 15 km/h H 88%1017 hPa

In Porth and, more broadly, across Rhondda Cynon Taf: This morning will start with mostly cloudy skies, and temperatures will be mild, ranging from 17 to 20 degrees Celsius. There is a possibility of light rain later in the day, with an accumulation of about 0.5 mm and the highest chance of rain around 87%. Winds will be moderate, blowing from the west at up to 16 mph, with gusts reaching 23 mph. During the afternoon, the cloud cover is likely to persist, and the risk of rain remains. Temperatures will stay mild, making for a relatively comfortable day despite the cloudiness. It’s advisable to keep an umbrella handy in case the rain arrives, especially during the afternoon hours. Overall, it looks to be a day of subdued weather with mild temperatures and some light rain possible.

15-Day Weather Outlook for Porth

TomorrowTomorrow Overcast Overcast 16°/11° 💧 None 💨 21 km/h
Wednesday, Sep 9Wed Sep 9 Mostly sunny Mostly sunny 17°/ 💧 None 💨 19 km/h
Thursday, Sep 10Thu Sep 10 Heavy rain Heavy rain 17°/ 💧 15 mm 💨 13 km/h
Friday, Sep 11Fri Sep 11 Light rain Light rain 19°/13° 💧 6.6 mm 💨 18 km/h
Saturday, Sep 12Sat Sep 12 Overcast Overcast 17°/ 💧 None 💨 15 km/h
Sunday, Sep 13Sun Sep 13 Light rain Light rain 19°/15° 💧 5.8 mm 💨 23 km/h
Monday, Sep 14Mon Sep 14 Mostly cloudy Mostly cloudy 18°/14° 💧 0.2 mm 💨 23 km/h
Tuesday, Sep 15Tue Sep 15 Light rain Light rain 17°/13° 💧 5.2 mm 💨 26 km/h
Wednesday, Sep 16Wed Sep 16 Mostly sunny Mostly sunny 16°/11° 💧 None 💨 14 km/h
Thursday, Sep 17Thu Sep 17 Overcast Overcast 17°/12° 💧 0.8 mm 💨 27 km/h
Friday, Sep 18Fri Sep 18 Partly cloudy Partly cloudy 16°/ 💧 0.1 mm 💨 13 km/h
Saturday, Sep 19Sat Sep 19 Overcast Overcast 16°/ 💧 0.4 mm 💨 18 km/h
Sunday, Sep 20Sun Sep 20 Light rain Light rain 17°/15° 💧 1.4 mm 💨 23 km/h
Monday, Sep 21Mon Sep 21 Overcast Overcast 18°/15° 💧 0.2 mm 💨 17 km/h
Tuesday, Sep 22Tue Sep 22 Mostly sunny Mostly sunny 13°/13° 💧 None 💨 9 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Porth

Vertical axis: °C · Color based on temperature
Overcast at 11:00 AM
17° Today 11:00 AM
Overcast at 12:00 PM
17° 12:00 PM
Overcast at 1:00 PM
17° 1:00 PM
Overcast at 2:00 PM
17° 2:00 PM
Overcast at 3:00 PM
17° Today 3:00 PM
Overcast at 4:00 PM
17° 4:00 PM
Overcast at 5:00 PM
16° 5:00 PM
Overcast at 6:00 PM
16° 6:00 PM
Overcast at 7:00 PM
15° Today 7:00 PM
Overcast night at 8:00 PM
15° 8:00 PM
Overcast night at 9:00 PM
15° 9:00 PM
Light rain at 10:00 PM
14° 10:00 PM
Light rain at 11:00 PM
14° Today 11:00 PM
Light rain at 12:00 AM
13° 12:00 AM
Light rain at 1:00 AM
13° 1:00 AM
Light rain at 2:00 AM
13° 2:00 AM
Light rain at 3:00 AM
13° Tomorrow 3:00 AM
Light rain at 4:00 AM
13° 4:00 AM
Light rain at 5:00 AM
13° 5:00 AM
Light rain at 6:00 AM
13° 6:00 AM
Light rain at 7:00 AM
13° Tomorrow 7:00 AM
Light rain at 8:00 AM
13° 8:00 AM
Overcast at 9:00 AM
13° 9:00 AM
Overcast at 10:00 AM
13° 10:00 AM
Mostly cloudy at 11:00 AM
14° Tomorrow 11:00 AM
Mostly sunny at 12:00 PM
15° 12:00 PM
Mostly sunny at 1:00 PM
16° 1:00 PM
Mostly sunny at 2:00 PM
16° 2:00 PM
Sunny at 3:00 PM
16° Tomorrow 3:00 PM
Mostly sunny at 4:00 PM
16° 4:00 PM
Mostly sunny at 5:00 PM
15° 5:00 PM
Mostly sunny at 6:00 PM
15° 6:00 PM
Sunny at 7:00 PM
14° Tomorrow 7:00 PM
Clear night at 8:00 PM
13° 8:00 PM
Clear night at 9:00 PM
12° 9:00 PM
Clear night at 10:00 PM
12° 10:00 PM
Clear night at 11:00 PM
12° Tomorrow 11:00 PM
Clear night at 12:00 AM
11° 12:00 AM
Clear night at 1:00 AM
11° 1:00 AM
Mostly clear night at 2:00 AM
11° 2:00 AM
Mostly clear night at 3:00 AM
11° Wednesday 3:00 AM
Mostly clear night at 4:00 AM
11° 4:00 AM
Partly cloudy night at 5:00 AM
10° 5:00 AM
Partly cloudy night at 6:00 AM
10° 6:00 AM
Partly cloudy at 7:00 AM
11° Wednesday 7:00 AM
Partly cloudy at 8:00 AM
12° 8:00 AM
Partly cloudy at 9:00 AM
13° 9:00 AM
Mostly cloudy at 10:00 AM
14° 10:00 AM
Mostly cloudy at 11:00 AM
15° Wednesday 11:00 AM
Mostly cloudy at 12:00 PM
15° 12:00 PM
Overcast at 1:00 PM
16° 1:00 PM
Partly cloudy at 2:00 PM
16° 2:00 PM
Mostly cloudy at 3:00 PM
17° Wednesday 3:00 PM
Mostly cloudy at 4:00 PM
16° 4:00 PM
Mostly cloudy at 5:00 PM
16° 5:00 PM
Overcast at 6:00 PM
15° 6:00 PM
Mostly cloudy at 7:00 PM
14° Wednesday 7:00 PM
Mostly cloudy night at 8:00 PM
13° 8:00 PM
Partly cloudy night at 9:00 PM
12° 9:00 PM
Mostly cloudy night at 10:00 PM
10° 10:00 PM
Overcast night at 11:00 PM
Wednesday 11:00 PM
Overcast night at 12:00 AM
12:00 AM
Overcast night at 1:00 AM
1:00 AM
Overcast night at 4:00 AM
4:00 AM
Overcast at 7:00 AM
Thursday 7:00 AM
Overcast at 10:00 AM
13° 10:00 AM
Partly cloudy at 1:00 PM
16° 1:00 PM
Mostly cloudy at 4:00 PM
17° 4:00 PM
Partly cloudy at 7:00 PM
16° Thursday 7:00 PM
Heavy rain at 10:00 PM
14° 10:00 PM
Light rain at 1:00 AM
14° 1:00 AM
Light rain at 4:00 AM
15° 4:00 AM
Overcast at 7:00 AM
15° Friday 7:00 AM
Partly cloudy at 10:00 AM
17° 10:00 AM
Mostly sunny at 1:00 PM
19° 1:00 PM
Partly cloudy at 4:00 PM
19° 4:00 PM
Sunny at 7:00 PM
16° Friday 7:00 PM
Mostly cloudy night at 10:00 PM
13° 10:00 PM
Overcast night at 1:00 AM
12° 1:00 AM
Mostly clear night at 4:00 AM
10° 4:00 AM
Partly cloudy at 7:00 AM
Saturday 7:00 AM
Mostly sunny at 10:00 AM
15° 10:00 AM
Sunny at 1:00 PM
17° 1:00 PM
Mostly sunny at 4:00 PM
17° 4:00 PM
Mostly sunny at 7:00 PM
15° Saturday 7:00 PM
Overcast night at 10:00 PM
15° 10:00 PM
Overcast night at 1:00 AM
15° 1:00 AM
Light rain at 7:00 AM
16° 7:00 AM
Light rain at 1:00 PM
19° Sunday 1:00 PM
Partly cloudy at 7:00 PM
17° 7:00 PM
Partly cloudy night at 1:00 AM
14° 1:00 AM
Mostly cloudy at 7:00 AM
15° 7:00 AM
Mostly cloudy at 1:00 PM
18° Monday 1:00 PM
Mostly sunny at 7:00 PM
16° 7:00 PM
Light rain at 1:00 AM
16° 1:00 AM
Mostly sunny at 7:00 AM
13° 7:00 AM
Light rain at 1:00 PM
17° Tuesday 1:00 PM
Sunny at 7:00 PM
15° 7:00 PM
Clear night at 1:00 AM
12° 1:00 AM
Mostly sunny at 7:00 AM
11° 7:00 AM
Overcast at 1:00 PM
16° Wednesday 1:00 PM
Mostly cloudy at 7:00 PM
14° 7:00 PM
Mostly cloudy night at 1:00 AM
13° 1:00 AM
Overcast at 7:00 AM
12° 7:00 AM
Overcast at 1:00 PM
17° Thursday 1:00 PM
Mostly sunny at 7:00 PM
15° 7:00 PM
Clear night at 1:00 AM
11° 1:00 AM
Sunny at 7:00 AM
7:00 AM
Partly cloudy at 1:00 PM
16° Friday 1:00 PM
Sunny at 7:00 PM
13° 7:00 PM
Clear night at 1:00 AM
1:00 AM
Partly cloudy at 7:00 AM
7:00 AM
Overcast at 1:00 PM
16° Saturday 1:00 PM
Overcast at 7:00 PM
15° 7:00 PM
Mostly cloudy night at 1:00 AM
15° 1:00 AM
Overcast at 7:00 AM
15° 7:00 AM
Light rain at 1:00 PM
17° Sunday 1:00 PM
Overcast at 7:00 PM
17° 7:00 PM
Partly cloudy night at 1:00 AM
16° 1:00 AM
Partly cloudy at 7:00 AM
15° 7:00 AM
Overcast at 1:00 PM
18° Monday 1:00 PM
Overcast at 7:00 PM
17° 7:00 PM
Mostly clear night at 1:00 AM
13° 1:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Porth

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 11:00 AM
PM2.5 Fine particles Good 1,7µg/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 3,8µg/m³

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

O₃ Ozone Fair 78,4µg/m³

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

NO₂ Nitrogen dioxide Good 1,4µg/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 Porth

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 3,7Moderate 🙂Fair
Tomorrow UV 3,6Moderate 🙂Fair
Wednesday UV 2,7Low 🙂Fair
Thursday UV 1,5Low 🙂Fair
Friday UV 5,0Moderate 🙂Fair
Saturday UV 6,0High Unavailable
Sunday UV 5,0Moderate Unavailable
Hourly UV index today
11:00 AMUV 2,7 12:00 PMUV 2,4 1:00 PMUV 3,7 2:00 PMUV 3,7 3:00 PMUV 3,1 4:00 PMUV 1,8 5:00 PMUV 0,9 6:00 PMUV 0,4 7:00 PMUV 0,1
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 Porth

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

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

8/100Best-hour score
No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.
Cloud cover 100% Real hourly forecast for the best viewing hour.
Moonlight 17% Waning Crescent · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 20° high at the best hour.
Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.
Chance ≥1 meteor in 30 minNot meaningful
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 Porth were last refreshed today at 10:07 AM. The current forecast period extends through 09/09/2026 at 8:00 AM. 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.