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Now · 11:36 PM

Deri Weather & Hourly Forecast

United Kingdom · Wales · CF81 9GA

Mostly clear night
10°C
Mostly clear night
Feels like: 9°C
💧 Humidity 85% 🌡 Pressure 1032 hPa 💨 Wind 2 km/h 👁 Visibility 39.2 km Clouds 23% ☀️ UV index 0.0 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Deri

Tomorrow
Mostly clear night · 12:00 AM Mostly clear night
10° 💧 None 💨 2 km/h H 85%1032 hPa
Mostly cloudy night · 3:00 AM Mostly cloudy night
11° 💧 None 💨 1 km/h H 79%1032 hPa
Overcast night · 6:00 AM Overcast night
13° 💧 None 💨 2 km/h H 75%1032 hPa
Overcast · 9:00 AM Overcast
14° 💧 None 💨 6 km/h H 72%1033 hPa
Overcast · 12:00 PM Overcast
17° 💧 0.1 mm 💨 11 km/h H 82%1033 hPa
Overcast · 3:00 PM Overcast
18° 💧 0.1 mm 💨 7 km/h H 81%1031 hPa
Partly cloudy · 6:00 PM Partly cloudy
18° 💧 0.0 mm 💨 8 km/h H 85%1031 hPa
Partly cloudy night · 9:00 PM Partly cloudy night
15° 💧 None 💨 8 km/h H 97%1032 hPa
Tuesday
Fog at night · 12:00 AM Fog at night
15° 💧 None 💨 8 km/h H 98%1032 hPa
Fog at night · 3:00 AM Fog at night
14° 💧 0.0 mm 💨 4 km/h H 98%1031 hPa
Fog at night · 6:00 AM Fog at night
13° 💧 None 💨 5 km/h H 97%1030 hPa
Fog · 9:00 AM Fog
14° 💧 0.1 mm 💨 3 km/h H 98%1031 hPa
Overcast · 12:00 PM Overcast
16° 💧 0.2 mm 💨 4 km/h H 90%1030 hPa
Overcast · 3:00 PM Overcast
17° 💧 0.1 mm 💨 6 km/h H 85%1029 hPa
Mostly sunny · 6:00 PM Mostly sunny
17° 💧 None 💨 4 km/h H 83%1028 hPa
Partly cloudy night · 9:00 PM Partly cloudy night
14° 💧 None 💨 1 km/h H 94%1028 hPa

In Deri and, more broadly, across Caerphilly: This evening, the sky will be a mix of sun and clouds, with temperatures remaining mild, ranging from 11 to 20 degrees Celsius. Winds will be light, coming from the west at around 6 mph, with gusts reaching up to 14 mph. No precipitation is expected during the night, so conditions will be relatively dry. The gentle breeze and partly clear skies should make for a pleasant evening. Temperatures are likely to stay steady through the next few hours, providing a comfortable end to the day.

15-Day Weather Outlook for Deri

Tuesday, Sep 22Tue Sep 22 Overcast Overcast 17°/13° 💧 None 💨 8 km/h
Wednesday, Sep 23Wed Sep 23 Mostly sunny Mostly sunny 17°/10° 💧 0.8 mm 💨 17 km/h
Thursday, Sep 24Thu Sep 24 Mostly cloudy Mostly cloudy 14°/ 💧 None 💨 14 km/h
Friday, Sep 25Fri Sep 25 Moderate rain Moderate rain 16°/10° 💧 1.6 mm 💨 16 km/h
Saturday, Sep 26Sat Sep 26 Overcast Overcast 14°/10° 💧 None 💨 14 km/h
Sunday, Sep 27Sun Sep 27 Very heavy rain Very heavy rain 17°/13° 💧 9.9 mm 💨 17 km/h
Monday, Sep 28Mon Sep 28 Overcast Overcast 15°/ 💧 0.0 mm 💨 11 km/h
Tuesday, Sep 29Tue Sep 29 Overcast Overcast 17°/ 💧 0.0 mm 💨 18 km/h
Wednesday, Sep 30Wed Sep 30 Partly cloudy Partly cloudy 19°/14° 💧 0.0 mm 💨 12 km/h
Thursday, Oct 1Thu Oct 1 Light rain Light rain 20°/15° 💧 5.7 mm 💨 11 km/h
Friday, Oct 2Fri Oct 2 Overcast Overcast 19°/15° 💧 None 💨 11 km/h
Saturday, Oct 3Sat Oct 3 Partly cloudy Partly cloudy 18°/13° 💧 1.7 mm 💨 15 km/h
Sunday, Oct 4Sun Oct 4 Mostly cloudy Mostly cloudy 17°/11° 💧 0.0 mm 💨 19 km/h
Monday, Oct 5Mon Oct 5 Overcast Overcast 16°/10° 💧 0.1 mm 💨 21 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Deri

Vertical axis: °C · Color based on temperature
Mostly clear night at 12:00 AM
10° Tomorrow 12:00 AM
Mostly cloudy night at 1:00 AM
10° 1:00 AM
Mostly cloudy night at 2:00 AM
10° 2:00 AM
Mostly cloudy night at 3:00 AM
11° 3:00 AM
Overcast night at 4:00 AM
11° Tomorrow 4:00 AM
Overcast night at 5:00 AM
12° 5:00 AM
Overcast night at 6:00 AM
13° 6:00 AM
Partly cloudy at 7:00 AM
13° 7:00 AM
Mostly cloudy at 8:00 AM
13° Tomorrow 8:00 AM
Overcast at 9:00 AM
14° 9:00 AM
Overcast at 10:00 AM
15° 10:00 AM
Overcast at 11:00 AM
16° 11:00 AM
Overcast at 12:00 PM
17° Tomorrow 12:00 PM
Overcast at 1:00 PM
17° 1:00 PM
Overcast at 2:00 PM
18° 2:00 PM
Overcast at 3:00 PM
18° 3:00 PM
Overcast at 4:00 PM
18° Tomorrow 4:00 PM
Mostly cloudy at 5:00 PM
18° 5:00 PM
Partly cloudy at 6:00 PM
18° 6:00 PM
Partly cloudy at 7:00 PM
17° 7:00 PM
Partly cloudy night at 8:00 PM
16° Tomorrow 8:00 PM
Partly cloudy night at 9:00 PM
15° 9:00 PM
Fog at night at 10:00 PM
15° 10:00 PM
Fog at night at 11:00 PM
15° 11:00 PM
Fog at night at 12:00 AM
15° Tuesday 12:00 AM
Fog at night at 1:00 AM
14° 1:00 AM
Fog at night at 2:00 AM
14° 2:00 AM
Fog at night at 3:00 AM
14° 3:00 AM
Fog at night at 4:00 AM
13° Tuesday 4:00 AM
Fog at night at 5:00 AM
13° 5:00 AM
Fog at night at 6:00 AM
13° 6:00 AM
Fog at 7:00 AM
13° 7:00 AM
Fog at 8:00 AM
14° Tuesday 8:00 AM
Fog at 9:00 AM
14° 9:00 AM
Fog at 10:00 AM
14° 10:00 AM
Mist at 11:00 AM
15° 11:00 AM
Overcast at 12:00 PM
16° Tuesday 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° 3:00 PM
Overcast at 4:00 PM
17° Tuesday 4:00 PM
Partly cloudy at 5:00 PM
17° 5:00 PM
Mostly sunny at 6:00 PM
17° 6:00 PM
Partly cloudy at 7:00 PM
15° 7:00 PM
Overcast night at 8:00 PM
15° Tuesday 8:00 PM
Partly cloudy night at 9:00 PM
14° 9:00 PM
Partly cloudy night at 10:00 PM
14° 10:00 PM
Clear night at 11:00 PM
14° 11:00 PM
Mostly cloudy night at 12:00 AM
14° Wednesday 12:00 AM
Partly cloudy night at 1:00 AM
14° 1:00 AM
Partly cloudy night at 2:00 AM
14° 2:00 AM
Mostly clear night at 3:00 AM
14° 3:00 AM
Mostly cloudy night at 4:00 AM
14° Wednesday 4:00 AM
Overcast night at 5:00 AM
14° 5:00 AM
Overcast night at 6:00 AM
14° 6:00 AM
Overcast at 7:00 AM
14° 7:00 AM
Overcast at 8:00 AM
14° Wednesday 8:00 AM
Overcast at 9:00 AM
15° 9:00 AM
Mostly cloudy at 10:00 AM
16° 10:00 AM
Overcast at 11:00 AM
16° 11:00 AM
Overcast at 12:00 PM
16° Wednesday 12:00 PM
Mostly cloudy at 1:00 PM
17° 1:00 PM
Mostly sunny at 4:00 PM
17° 4:00 PM
Mostly sunny at 7:00 PM
13° 7:00 PM
Clear night at 10:00 PM
10° Wednesday 10:00 PM
Mostly cloudy night at 1:00 AM
1:00 AM
Partly cloudy night at 4:00 AM
4:00 AM
Partly cloudy at 7:00 AM
7:00 AM
Mostly cloudy at 10:00 AM
12° Thursday 10:00 AM
Mostly cloudy at 1:00 PM
14° 1:00 PM
Mostly cloudy at 4:00 PM
14° 4:00 PM
Mostly sunny at 7:00 PM
12° 7:00 PM
Partly cloudy night at 10:00 PM
11° Thursday 10:00 PM
Overcast night at 1:00 AM
11° 1:00 AM
Overcast night at 4:00 AM
12° 4:00 AM
Overcast night at 7:00 AM
13° 7:00 AM
Moderate rain at 10:00 AM
14° Friday 10:00 AM
Overcast at 1:00 PM
16° 1:00 PM
Overcast at 4:00 PM
15° 4:00 PM
Partly cloudy at 7:00 PM
13° 7:00 PM
Overcast night at 10:00 PM
10° Friday 10:00 PM
Overcast night at 1:00 AM
10° 1:00 AM
Overcast night at 4:00 AM
11° 4:00 AM
Overcast night at 7:00 AM
11° 7:00 AM
Overcast at 10:00 AM
12° Saturday 10:00 AM
Overcast at 1:00 PM
14° 1:00 PM
Overcast at 7:00 PM
14° 7:00 PM
Overcast night at 1:00 AM
13° 1:00 AM
Very heavy rain at 7:00 AM
13° Sunday 7:00 AM
Partly cloudy at 1:00 PM
17° 1:00 PM
Overcast at 7:00 PM
14° 7:00 PM
Overcast night at 1:00 AM
12° 1:00 AM
Overcast night at 7:00 AM
Monday 7:00 AM
Mostly sunny at 1:00 PM
15° 1:00 PM
Mostly cloudy night at 7:00 PM
11° 7:00 PM
Overcast night at 1:00 AM
1:00 AM
Overcast night at 7:00 AM
Tuesday 7:00 AM
Overcast at 1:00 PM
17° 1:00 PM
Mostly cloudy night at 7:00 PM
17° 7:00 PM
Mostly cloudy night at 1:00 AM
16° 1:00 AM
Overcast night at 7:00 AM
14° Wednesday 7:00 AM
Mostly cloudy at 1:00 PM
19° 1:00 PM
Partly cloudy night at 7:00 PM
18° 7:00 PM
Light rain at 1:00 AM
15° 1:00 AM
Overcast night at 7:00 AM
15° Thursday 7:00 AM
Mostly cloudy at 1:00 PM
20° 1:00 PM
Partly cloudy night at 7:00 PM
19° 7:00 PM
Overcast night at 1:00 AM
16° 1:00 AM
Overcast night at 7:00 AM
15° Friday 7:00 AM
Overcast at 1:00 PM
19° 1:00 PM
Overcast night at 7:00 PM
19° 7:00 PM
Partly cloudy night at 1:00 AM
15° 1:00 AM
Partly cloudy night at 7:00 AM
13° Saturday 7:00 AM
Mostly sunny at 1:00 PM
18° 1:00 PM
Mostly clear night at 7:00 PM
18° 7:00 PM
Mostly cloudy night at 1:00 AM
13° 1:00 AM
Clear night at 7:00 AM
11° Sunday 7:00 AM
Sunny at 1:00 PM
17° 1:00 PM
Clear night at 7:00 PM
14° 7:00 PM
Clear night at 1:00 AM
11° 1:00 AM
Overcast night at 7:00 AM
10° Monday 7:00 AM
Partly cloudy at 1:00 PM
16° 1:00 PM

AIR QUALITY FORECAST

Air Quality Forecast for Deri

Hourly forecast · Updated every 2 hours
Good
Nearest forecast value 12:00 AM
PM2.5 Fine particles Good 2,5µg/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 6,0µg/m³

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

O₃ Ozone Good 32,4µg/m³

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

NO₂ Nitrogen dioxide Good 9,5µg/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 Deri

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 3,2Moderate Unavailable
Tomorrow UV 4,0Moderate 😊Good
Tuesday UV 3,8Moderate 🙂Fair
Wednesday UV 3,1Moderate 🙂Fair
Thursday UV 3,4Moderate 🙂Fair
Friday UV 5,0Moderate Unavailable
Saturday UV 4,0Moderate Unavailable
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 Deri

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

Tonight's Stargazing & Shooting Stars

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

82/100Best-hour score
BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 9:11 PM–5:03 AM
Cloud cover 23% Real hourly forecast for the best viewing hour.
Moonlight 68% First Quarter · Moon about 2° above the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 44° 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 min45%
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
ACTIVE NOW
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 Deri were last refreshed today at 11:36 PM. The current forecast period extends through 22/09/2026 at 9:00 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.