Greystones weather in January

In January, Greystones sees average daytime highs of 8°C and overnight lows near 5°C, with 81 mm of precipitation across 14.7 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 14% of the time in January, and the air most often feels dry.

Daylight stretches from about 7 h 24 min at the start of January to 8 h 36 min by month's end. Set against the rest of the year, January is Greystones's 8th-clearest and 1st-windiest month. For the whole year in context, see Greystones's year-round climate.

Daytime high
11th warmest
Overnight low
2nd coldest
Precipitation
81 mm
14.7 wet days
Daylight
7 h 48 min
8:39 AM – 4:28 PM
Cloud cover
73%
8th clearest
Wind
26 km/h
1st windiest
Solar energy
0.74 kWh/m²
Travel score
1.2
out of 10

Greystones is town in County Wicklow, Ireland.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 8°C through the month.

A typical January day in Greystones reaches about 8°C in the afternoon and slips back to 5°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 11°C. Set against its neighbours, January runs on par with December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
185
285
385
485
585
685
785
885
985
1085
1185
1285
1385
1485
1585
1685
1785
1885
1985
2085
2185
2285
2385
2485
2585
2685
2785
2885
2985
3085
3185

Greystones weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8114.70.57.91.2
Feb / 6412.70.99.51.1
Mar / 6212.20.511.51.5
Apr10° / 6112.70.113.62.1
May12° / 5812.3015.53.0
Jun14° / 11°6811.6016.64.0
Jul16° / 13°7113.6016.24.5
Aug17° / 13°7513014.54.7
Sep15° / 12°7512.5012.44.2
Oct13° / 10°9213.7010.33.2
Nov11° / 10715.30.18.42.1
Dec / 9013.90.47.41.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43169
53169
63169
73169
83169
93169
103169
113169
123169
133169
143169
153169
162971
172971
182971
192971
202872
212773
222773
232674
242674
252674
262674
272872
282872
292872
302773
312773

Chance of precipitation in January

Any precipitationSnow

Greystones gets around 81 mm of rain and snow over 14.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 47% and peaks near 51% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1492
2502
3502
4502
5512
6512
7512
8502
9502
10502
11492
12492
13482
14482
15472
16471
17461
18461
19461
20451
21451
22452
23442
24442
25442
26442
27442
28442
29442
30442
31452

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 26 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 25 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
126breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1426breezy
1526breezy
1626breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2325breezy
2425breezy
2525breezy
2625breezy
2725breezy
2825breezy
2925breezy
3025breezy
3125breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 7 h 24 min at the start of January to 8 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over January. Sunrise moves from 8:46 AM to 8:21 AM, and sunset from 4:09 PM to 4:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.48:464:09
27.48:464:10
37.48:464:11
47.48:464:12
57.58:454:13
67.58:454:14
77.58:454:15
87.58:444:17
97.68:444:18
107.68:434:19
117.68:434:21
127.78:424:22
137.78:414:24
147.78:414:25
157.88:404:27
167.88:394:28
177.98:384:30
187.98:374:31
197.98:364:33
208.08:354:35
218.08:344:36
228.18:334:38
238.18:324:40
248.28:314:42
258.28:294:43
268.38:284:45
278.38:274:47
288.48:254:49
298.48:244:50
308.58:224:52
318.68:214:54

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.74 kWh/m².

For context, solar energy here swings from a low near 0.57 kWh/m² to a high of 5.44 kWh/m² in June across the year — January's 0.74 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.6Dim
20.6Dim
30.6Dim
40.6Dim
50.6Dim
60.6Dim
70.6Dim
80.6Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.8Dim
180.8Dim
190.8Dim
200.8Dim
210.8Dim
220.8Dim
230.8Dim
240.9Dim
250.9Dim
260.9Dim
270.9Dim
281.0Dim
291.0Dim
301.0Dim
311.0Dim
Planning a trip in January

Is January a good time to visit Greystones?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.2
Sightseeing
11th-best month of the year
Beach & pool
never really warm enough

January is a weaker month for outdoor sightseeing in Greystones.

What to pack for Greystones in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Greystones sees daytime highs around 8°C and nights near 5°C. Pack a warm layer and rain gear. Worth having: a heavy coat and a windbreaker. About 15 days see rain.

a warm layerrain geara heavy coata windbreaker

Sea temperature near Greystones in January

The nearest coast averages about 9°C in January — 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.

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May10Bracing
Jun12Bracing
Jul14Bracing
Aug15Bracing
Sep15Bracing
Oct14Bracing
Nov12Bracing
Dec11Bracing

UV index in Greystones in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5High
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

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.

DublinSouth DublinTallaght

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.

3 km
220 m
16 km
721 m
80 km
946 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Bray 7.0 km · Dún Laoghaire 18 km · Sandyford 18 km · Rathfarnham 23 km · Templeogue 24 km · Dublin 25 km · South Dublin 25 km · Tallaght 26 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
Roman Catholic 69%none 15%Protestant 4%Orthodox 2%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).