Greystones in Summer
In summer (June, July and August), Greystones sees average daytime highs around 16°C and overnight lows near 13°C, with 214 mm of rain over about 38 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 14°C in early June to 16°C by late August. The sky is clear or mostly clear about 10% of the time across summer, and the air most often feels dry.
Summer is Greystones's best season of the year to visit on our travel score. For the whole year in context, see Greystones's year-round climate.
- Avg daytime high
- 16°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 214 mm
- 38 wet days
- Avg wind
- 17 km/h
- Travel score
- 4.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Greystones in Summer
Over the season highs climb from about 14°C in early June to 16°C by late August.
A typical summer day in Greystones reaches about 16°C and drops to 13°C overnight. The warmest of the three months is August, the coolest June.
Greystones weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / 5° | 81 | 14.7 | 0.5 | 7.9 | 1.2 |
| Feb | 8° / 5° | 64 | 12.7 | 0.9 | 9.5 | 1.1 |
| Mar | 9° / 6° | 62 | 12.2 | 0.5 | 11.5 | 1.5 |
| Apr | 10° / 7° | 61 | 12.7 | 0.1 | 13.6 | 2.1 |
| May | 12° / 9° | 58 | 12.3 | 0 | 15.5 | 3.0 |
| Jun | 14° / 11° | 68 | 11.6 | 0 | 16.6 | 4.0 |
| Jul | 16° / 13° | 71 | 13.6 | 0 | 16.2 | 4.5 |
| Aug | 17° / 13° | 75 | 13 | 0 | 14.5 | 4.7 |
| Sep | 15° / 12° | 75 | 12.5 | 0 | 12.4 | 4.2 |
| Oct | 13° / 10° | 92 | 13.7 | 0 | 10.3 | 3.2 |
| Nov | 11° / 8° | 107 | 15.3 | 0.1 | 8.4 | 2.1 |
| Dec | 9° / 6° | 90 | 13.9 | 0.4 | 7.4 | 1.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 10% of the time across summer.
Chance of precipitation in Summer
Greystones gets around 214 mm of rain over 38 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 17 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 16 h 18 min in early June to 13 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.9 kWh/m².
Is summer a good time to visit Greystones?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Greystones for sightseeing.
What to pack for Greystones in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Greystones sees daytime highs around 16°C and nights near 13°C. Worth packing: a warm layer, rain gear and sun protection. About 38 days see rain.
Sea temperature near Greystones in Summer
The nearest coast averages about 14°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 13 km away) is warmest in August at about 15°C and coldest in March near 8°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 9 | 8 | 8 | 9 | 10 | 12 | 14 | 15 | 15 | 14 | 12 | 11 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 9 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 9 | Bracing |
| May | 10 | Bracing |
| Jun | 12 | Bracing |
| Jul | 14 | Bracing |
| Aug | 15 | Bracing |
| Sep | 15 | Bracing |
| Oct | 14 | Bracing |
| Nov | 12 | Bracing |
| Dec | 11 | Bracing |
UV index in Greystones in Summer
Clear-sky midday UV across summer averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Greystones peaks around August 13 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 3 | 5 | 6 | 5 | 6 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 3 | Moderate |
| May | 5 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Low |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Greystones?
Greystones sits at 53.1°N, 6.1°W, 80 m above sea level, in Ireland. The nearest listed city is Bray, 7.0 km away.
Topography around Greystones
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Greystones.
Within 3 km, the terrain around Greystones has only modest variations in elevation — a maximum elevation change of 220 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 721 m; within 80 km, large variations in elevation — a maximum elevation change of 946 m.
The land around Greystones is covered by water (43%) and grassland (25%) within 3 km, water (52%) and grassland (27%) within 16 km, and grassland (46%) and water (32%) within 80 km.
Ireland travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type G
- 230 V · 50 Hz
- Prices
- ≈ 85% of US
- price level, 2025
- GDP per capita
- $131,592
- 2025
- Happiness
- 6.9 / 10
- World Happiness, 2025
- Safe drinking water
- 96%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Greystones (53.1408°, -6.0631°, elevation 80 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.