Blackrock

Dún Laoghaire-Rathdown, Leinster, Ireland

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

14°

Overcast

Feels Like: 13°

Min: 13°

Max: 17°

The next few hours will be overcast, with today reaching 16°C and dropping to 13°C. The coming days will be drizzle until night.

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

14° 14° 14° 15° 16° 16° 16° 16° 16° 16° 16° 15° 14° 13° 13° 13° 13° 13° 13° 13° 14° 14° 14° 14°
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
Today
Tomorrow

Daylight Hours

07:25

Sunrise

19:05

Sunset

11 hours 40 minutes of sunlight today

Moon

Waxing Gibbous

18:40

Moonrise

05:36

Moonset

Daily Forecast

Today

13°
17°

Saturday

13°
19°

Sunday

12°
17°

Monday

9°
15°

Tuesday

14°
19°

Wednesday

14°
18°

Thursday

11°
17°

Friday

9°
14°

Saturday

11°
17°

Sunday

14°
18°

Air Quality Data Available

Upgrade to access real-time air quality data for Blackrock.

UV Index

No protection needed
0 Low
Low Extreme

Humidity

80% Humid
Low High

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Blackrock.

View stargazing score

Weather in Blackrock today, September 25, 2026

Blackrock stays under cloudy skies on September 25, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The morning sky stays heavily clouded, with cover near 100% around 08:00. Grey conditions set the early tone before any later change.

The temperature range runs from about 13°C up to 17°C. The air stays humid, with relative humidity between 58% and 81% and the peak around 08:00. Winds stay light, near 3.5 km/h by 15:00, so the day feels still more than breezy.

Expect persistent cloud later on, with amounts around 100% by 13:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 37.2 km on average, though it can drop toward 30.8 km in thicker cloud or showers. Expect sunrise at 07:25, sunset at 19:05, and 11 hours 40 minutes of sunlight today overall.

Overall, Blackrock on September 25, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 17°C.

Frequently asked questions about weather in Blackrock

How warm does it get in Blackrock?

The warmest month in Blackrock is July, with average high temperatures of 18°C. The average temperature during this period is around 16°C.

How cold does it get in Blackrock?

The coldest month in Blackrock is January, with average low temperatures of 3°C. The average temperature during this period is around 5°C.

What is the wettest time of year in Blackrock?

The wettest month in Blackrock is September, with an average of 94mm of precipitation.

What is the driest time of year in Blackrock?

The driest month in Blackrock is May, with an average of 64mm of precipitation.

View full climate insights for Blackrock →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)