See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
14°
Light Rain
Feels Like: 14°
Min: 12°
Max: 16°
The next few hours will be overcast, with today reaching 16°C and dropping to 12°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:24
Sunrise
19:05
Sunset
Moon
Waxing Gibbous
18:40
Moonrise
05:36
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Greystones.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Greystones.
View stargazing scoreWeather in Greystones today, September 25, 2026
Greystones looks damp on September 25, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The morning carries the wetter risk, with rain chances near 62% and the highest odds around 05:00. Cloud is also thick early on, peaking near 100% around 05:00.
The temperature range runs from about 12°C up to 16°C. Moisture in the air spans 64%-83%, with the highest values around 09:00. Winds stay light, near 3.5 km/h by 18:00, so the day feels still more than breezy.
The afternoon should feel quieter than the damp start, with rain probability easing to about 0% after morning values near 62%. Cloud cover stays around 100% by 13:00. Visibility holds near 35.9 km, though it can fall to 30.1 km. Expect sunrise at 07:24, sunset at 19:05, and 11 hours 40 minutes of sunlight today overall.
The practical takeaway for Greystones on September 25, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 16°C.
Frequently asked questions about weather in Greystones
How warm does it get in Greystones?
The warmest month in Greystones is August, with average high temperatures of 17°C. The average temperature during this period is around 15°C.
How cold does it get in Greystones?
The coldest month in Greystones is January, with average low temperatures of 5°C. The average temperature during this period is around 7°C.
What is the wettest time of year in Greystones?
The wettest month in Greystones is November, with an average of 106mm of precipitation.
What is the driest time of year in Greystones?
The driest month in Greystones is May, with an average of 56mm of precipitation.
