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Now · 8:56 AM

Efail Isaf Weather & Hourly Forecast

United Kingdom · Wales · CF38 1AA

Overcast
18°C
Overcast
Feels like: 18°C
💧 Humidity 91% 🌡 Pressure 1017 hPa 💨 Wind 22 km/h 👁 Visibility 10.0 km Clouds 100% ☀️ UV index 0.2 · Low 🌅 Sunrise 6:28 AM 🌇 Sunset 7:56 PM

Hourly Forecast for Efail Isaf

Today
Overcast · 9:00 AM Overcast
18° 💧 None 💨 22 km/h H 91%1017 hPa
Overcast · 12:00 PM Overcast
20° 💧 None 💨 29 km/h H 81%1017 hPa
Overcast · 3:00 PM Overcast
22° 💧 None 💨 32 km/h H 72%1017 hPa
Overcast · 6:00 PM Overcast
20° 💧 None 💨 29 km/h H 84%1016 hPa
Overcast night · 9:00 PM Overcast night
17° 💧 None 💨 24 km/h H 92%1016 hPa
Tomorrow
Overcast night · 12:00 AM Overcast night
18° 💧 0.4 mm 💨 24 km/h H 86%1014 hPa
Overcast night · 3:00 AM Overcast night
20° 💧 0.5 mm 💨 42 km/h H 97%1011 hPa
Light rain · 6:00 AM Light rain
19° 💧 0.8 mm 💨 21 km/h H 91%1013 hPa
Light rain · 9:00 AM Light rain
17° 💧 0.1 mm 💨 21 km/h H 90%1014 hPa
Overcast · 12:00 PM Overcast
19° 💧 None 💨 28 km/h H 49%1016 hPa
Overcast · 3:00 PM Overcast
20° 💧 None 💨 30 km/h H 52%1017 hPa
Overcast · 6:00 PM Overcast
17° 💧 None 💨 24 km/h H 63%1018 hPa
Mostly cloudy night · 9:00 PM Mostly cloudy night
14° 💧 None 💨 15 km/h H 78%1020 hPa
Saturday
Mostly cloudy night · 12:00 AM Mostly cloudy night
12° 💧 None 💨 10 km/h H 86%1021 hPa
Overcast night · 3:00 AM Overcast night
10° 💧 None 💨 9 km/h H 95%1022 hPa
Overcast night · 6:00 AM Overcast night
💧 None 💨 3 km/h H 98%1023 hPa

In Efail Isaf and, more broadly, across Rhondda Cynon Taf: This morning, the sky is mostly cloudy with mild temperatures ranging from 18 to 22 degrees Celsius. A gentle breeze from the west is expected, with wind speeds reaching up to 20 mph and gusts up to 30 mph. During the afternoon, conditions will remain largely similar, although there is a chance of light rain, accumulating around 0.3 mm, with a maximum probability of 22%. Winds are likely to stay noticeable, still coming from the west at similar speeds. Overall, the day will be relatively mild, with periods of cloudiness and the possibility of brief, light showers later on. It’s advisable to carry an umbrella in case of rain and to be prepared for the breezy conditions.

15-Day Weather Outlook for Efail Isaf

TomorrowTomorrow Light rain Light rain 21°/12° 💧 1.2 mm 💨 41 km/h
Saturday, Sep 5Sat Sep 5 Mostly sunny Mostly sunny 20°/ 💧 None 💨 16 km/h
Sunday, Sep 6Sun Sep 6 Overcast Overcast 24°/11° 💧 None 💨 22 km/h
Monday, Sep 7Mon Sep 7 Light rain Light rain 18°/13° 💧 0.5 mm 💨 33 km/h
Tuesday, Sep 8Tue Sep 8 Light rain Light rain 17°/ 💧 1.5 mm 💨 32 km/h
Wednesday, Sep 9Wed Sep 9 Mostly sunny Mostly sunny 17°/ 💧 None 💨 25 km/h
Thursday, Sep 10Thu Sep 10 Moderate rain Moderate rain 15°/11° 💧 10 mm 💨 16 km/h
Friday, Sep 11Fri Sep 11 Light rain Light rain 17°/ 💧 1.2 mm 💨 13 km/h
Saturday, Sep 12Sat Sep 12 Mostly sunny Mostly sunny 18°/ 💧 None 💨 19 km/h
Sunday, Sep 13Sun Sep 13 Overcast Overcast 19°/ 💧 None 💨 14 km/h
Monday, Sep 14Mon Sep 14 Mostly cloudy Mostly cloudy 19°/ 💧 None 💨 9 km/h
Tuesday, Sep 15Tue Sep 15 Mostly sunny Mostly sunny 21°/ 💧 None 💨 8 km/h
Wednesday, Sep 16Wed Sep 16 Overcast Overcast 20°/ 💧 None 💨 11 km/h
Thursday, Sep 17Thu Sep 17 Overcast Overcast 17°/10° 💧 None 💨 7 km/h
Friday, Sep 18Fri Sep 18 Overcast Overcast 19°/12° 💧 None 💨 13 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Efail Isaf

Vertical axis: °C · Color based on temperature
Overcast at 9:00 AM
18° Today 9:00 AM
Overcast at 10:00 AM
18° 10:00 AM
Overcast at 11:00 AM
19° 11:00 AM
Overcast at 12:00 PM
20° 12:00 PM
Overcast at 1:00 PM
21° Today 1:00 PM
Overcast at 2:00 PM
23° 2:00 PM
Overcast at 3:00 PM
22° 3:00 PM
Overcast at 4:00 PM
21° 4:00 PM
Overcast at 5:00 PM
21° Today 5:00 PM
Overcast at 6:00 PM
20° 6:00 PM
Overcast at 7:00 PM
19° 7:00 PM
Overcast night at 8:00 PM
18° 8:00 PM
Overcast night at 9:00 PM
17° Today 9:00 PM
Overcast night at 10:00 PM
17° 10:00 PM
Overcast night at 11:00 PM
18° 11:00 PM
Overcast night at 12:00 AM
18° 12:00 AM
Light rain at 1:00 AM
19° Tomorrow 1:00 AM
Light rain at 2:00 AM
20° 2:00 AM
Overcast night at 3:00 AM
20° 3:00 AM
Light rain at 4:00 AM
20° 4:00 AM
Light rain at 5:00 AM
19° Tomorrow 5:00 AM
Light rain at 6:00 AM
19° 6:00 AM
Light rain at 7:00 AM
17° 7:00 AM
Overcast at 8:00 AM
16° 8:00 AM
Light rain at 9:00 AM
17° Tomorrow 9:00 AM
Overcast at 10:00 AM
18° 10:00 AM
Overcast at 11:00 AM
19° 11:00 AM
Overcast at 12:00 PM
19° 12:00 PM
Overcast at 1:00 PM
20° Tomorrow 1:00 PM
Overcast at 2:00 PM
20° 2:00 PM
Overcast at 3:00 PM
20° 3:00 PM
Overcast at 4:00 PM
20° 4:00 PM
Overcast at 5:00 PM
19° Tomorrow 5:00 PM
Overcast at 6:00 PM
17° 6:00 PM
Overcast at 7:00 PM
16° 7:00 PM
Overcast night at 8:00 PM
15° 8:00 PM
Mostly cloudy night at 9:00 PM
14° Tomorrow 9:00 PM
Partly cloudy night at 10:00 PM
13° 10:00 PM
Mostly cloudy night at 11:00 PM
13° 11:00 PM
Mostly cloudy night at 12:00 AM
12° 12:00 AM
Mostly cloudy night at 1:00 AM
12° Saturday 1:00 AM
Overcast night at 2:00 AM
10° 2:00 AM
Overcast night at 3:00 AM
10° 3:00 AM
Overcast night at 4:00 AM
4:00 AM
Overcast night at 5:00 AM
Saturday 5:00 AM
Overcast night at 6:00 AM
6:00 AM
Overcast at 7:00 AM
7:00 AM
Mostly cloudy at 8:00 AM
11° 8:00 AM
Partly cloudy at 9:00 AM
14° Saturday 9:00 AM
Mostly cloudy at 10:00 AM
16° 10:00 AM
Partly cloudy at 11:00 AM
17° 11:00 AM
Partly cloudy at 12:00 PM
18° 12:00 PM
Partly cloudy at 1:00 PM
19° Saturday 1:00 PM
Mostly sunny at 2:00 PM
20° 2:00 PM
Mostly sunny at 3:00 PM
20° 3:00 PM
Partly cloudy at 4:00 PM
19° 4:00 PM
Partly cloudy at 5:00 PM
19° Saturday 5:00 PM
Partly cloudy at 6:00 PM
18° 6:00 PM
Mostly cloudy at 7:00 PM
16° 7:00 PM
Partly cloudy night at 8:00 PM
13° 8:00 PM
Mostly clear night at 9:00 PM
12° Saturday 9:00 PM
Mostly clear night at 10:00 PM
11° 10:00 PM
Mostly clear night at 11:00 PM
11° 11:00 PM
Mostly clear night at 12:00 AM
11° 12:00 AM
Mostly clear night at 1:00 AM
11° Sunday 1:00 AM
Mostly cloudy night at 2:00 AM
11° 2:00 AM
Mostly cloudy night at 3:00 AM
11° 3:00 AM
Overcast night at 4:00 AM
11° 4:00 AM
Overcast night at 5:00 AM
11° Sunday 5:00 AM
Overcast night at 6:00 AM
11° 6:00 AM
Overcast at 7:00 AM
12° 7:00 AM
Overcast at 8:00 AM
13° 8:00 AM
Overcast at 9:00 AM
15° Sunday 9:00 AM
Overcast at 10:00 AM
17° 10:00 AM
Overcast at 11:00 AM
19° 11:00 AM
Mostly cloudy at 12:00 PM
22° 12:00 PM
Mostly cloudy at 1:00 PM
23° Sunday 1:00 PM
Light rain at 2:00 PM
24° 2:00 PM
Overcast at 3:00 PM
24° 3:00 PM
Overcast at 4:00 PM
24° 4:00 PM
Overcast at 5:00 PM
22° Sunday 5:00 PM
Overcast at 6:00 PM
21° 6:00 PM
Overcast at 7:00 PM
18° 7:00 PM
Overcast night at 8:00 PM
16° 8:00 PM
Partly cloudy night at 9:00 PM
15° Sunday 9:00 PM
Partly cloudy night at 10:00 PM
14° 10:00 PM
Partly cloudy night at 11:00 PM
14° 11:00 PM
Mostly clear night at 12:00 AM
14° 12:00 AM
Partly cloudy night at 1:00 AM
15° Monday 1:00 AM
Overcast night at 2:00 AM
15° 2:00 AM
Overcast night at 3:00 AM
16° 3:00 AM
Overcast night at 4:00 AM
15° 4:00 AM
Overcast night at 5:00 AM
15° Monday 5:00 AM
Overcast night at 6:00 AM
15° 6:00 AM
Overcast at 7:00 AM
16° 7:00 AM
Overcast at 8:00 AM
16° 8:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Efail Isaf

Hourly forecast · Updated every 2 hours
Good
Nearest forecast value 9:00 AM
PM2.5 Fine particles Good 4,4µg/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 7,4µg/m³

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

O₃ Ozone Good 48,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,3µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Efail Isaf

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 4,8Moderate 😊Good
Tomorrow UV 4,6Moderate 🙂Fair
Saturday UV 4,5Moderate 🙂Fair
Sunday UV 4,6Moderate 🙂Fair
Monday UV 4,0Moderate 😊Good
Tuesday UV 4,0Moderate Unavailable
Wednesday UV 5,0Moderate Unavailable
Hourly UV index today
9:00 AMUV 0,8 10:00 AMUV 1,6 11:00 AMUV 2,8 12:00 PMUV 4,0 1:00 PMUV 4,8 2:00 PMUV 4,6 3:00 PMUV 3,8 4:00 PMUV 2,7 5:00 PMUV 1,5 6:00 PMUV 0,6 7:00 PMUV 0,2
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

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 Efail Isaf

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 9:00 AM 10:00 AM 11:00 AM 12:00 PM Today 1:00 PM 2:00 PM 3:00 PM 4:00 PM Today 5:00 PM 6:00 PM 7:00 PM 8:00 PM Today 9:00 PM 10:00 PM 11:00 PM 12:00 AM Tomorrow 1:00 AM 2:00 AM 3:00 AM 4:00 AM Tomorrow 5:00 AM 6:00 AM 7:00 AM 8:00 AM Tomorrow 9:00 AM 10:00 AM 11:00 AM 12:00 PM Tomorrow 1:00 PM 2:00 PM 3:00 PM 4:00 PM Tomorrow 5:00 PM 6:00 PM 7:00 PM 8:00 PM Tomorrow 9:00 PM 10:00 PM 11:00 PM 12:00 AM Saturday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Saturday 5:00 AM 6:00 AM 7:00 AM 8:00 AM Saturday 9:00 AM 10:00 AM 11:00 AM 12:00 PM Saturday 1:00 PM 2:00 PM 3:00 PM 4:00 PM Saturday 5:00 PM 6:00 PM 7:00 PM 8:00 PM Saturday 9:00 PM 10:00 PM 11:00 PM 12:00 AM Sunday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Sunday 5:00 AM 6:00 AM 7:00 AM 8:00 AM Sunday 9:00 AM 10:00 AM 11:00 AM 12:00 PM Sunday 1:00 PM 2:00 PM 3:00 PM 4:00 PM Sunday 5:00 PM 6:00 PM 7:00 PM 8:00 PM Sunday 9:00 PM 10:00 PM 11:00 PM 12:00 AM Monday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Monday 5:00 AM 6:00 AM 7:00 AM 8:00 AM
Sustained wind Max gusts
Internal PR simulation: 3.49 Population: 590

Forecast data for Efail Isaf were last refreshed today at 8:55 AM. The current forecast period extends through 05/09/2026 at 6:00 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.