Ennis weather in December

In December, Ennis sees average daytime highs of 9°C and overnight lows near 4°C, with 106 mm of precipitation across 15.9 wet days and about 7.4 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 9°C through the month. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels dry.

Daylight stretches from about 7 h 42 min at the start of December to 7 h 24 min by month's end. Set against the rest of the year, December is Ennis's 5th-clearest and 2nd-windiest month. For the whole year in context, see Ennis's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
106 mm
15.9 wet days
Daylight
7 h 24 min
8:51 AM – 4:13 PM
Cloud cover
78%
5th clearest
Wind
16 km/h
2nd windiest
Solar energy
0.53 kWh/m²
Travel score
1.4
out of 10

Ennis is town in County Clare, Ireland.

Air quality
Moderate
PM2.5 11.8 µg/m³ · 2010

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 9°C through the month.

A typical December day in Ennis reaches about 9°C in the afternoon and slips back to 4°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 12°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
195
295
394
494
594
694
794
894
994
1094
1194
1294
1394
1494
1594
1694
1794
1894
1994
2084
2184
2284
2384
2484
2584
2684
2784
2884
2984
3084
3184

How December really feels in Ennis

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 8 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
8
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Ennis weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9716.10.47.91.2
Feb / 8313.20.59.51.4
Mar10° / 7813.30.411.52.1
Apr13° / 7413.4013.63.0
May15° / 7513.6015.54.0
Jun17° / 10°7412.4016.54.9
Jul18° / 12°7913.7016.15.1
Aug18° / 12°9114.3014.55.1
Sep17° / 10°7712.8012.44.6
Oct14° / 9314.5010.33.3
Nov11° / 10115.60.18.42.0
Dec / 10615.90.37.41.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52377
62377
72278
82278
92179
102278
112278
122278
132278
142278
152278
162278
172179
182179
192179
202179
212080
222179
232179
242179
252080
262080
272080
282080
292080
302080
312080

Chance of precipitation in December

Any precipitationSnow

Ennis gets around 106 mm of rain and snow over 15.9 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 51% and peaks near 53% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1511
2511
3521
4521
5521
6521
7521
8521
9521
10511
11511
12511
13511
14511
15501
16501
17501
18501
19501
20501
21501
22501
23501
24511
25511
26511
27522
28522
29522
30522
31532

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1117light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 42 min at the start of December to 7 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 8:34 AM to 8:57 AM, and sunset from 4:17 PM to 4:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.78:344:17
27.78:354:17
37.78:374:16
47.68:384:16
57.68:394:15
67.68:414:15
77.58:424:14
87.58:434:14
97.58:444:14
107.58:454:14
117.58:464:13
127.48:474:13
137.48:484:13
147.48:494:13
157.48:504:13
167.48:514:13
177.48:514:14
187.48:524:14
197.48:534:14
207.48:534:14
217.38:544:15
227.38:554:15
237.38:554:16
247.48:554:16
257.48:564:17
267.48:564:18
277.48:564:18
287.48:564:19
297.48:564:20
307.48:574:21
317.48:574:22

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.53 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.53 kWh/m² to a high of 4.81 kWh/m² in June across the year — December's 0.53 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
90.6Dim
100.6Dim
110.5Dim
120.5Dim
130.5Dim
140.5Dim
150.5Dim
160.5Dim
170.5Dim
180.5Dim
190.5Dim
200.5Dim
210.5Dim
220.5Dim
230.5Dim
240.5Dim
250.5Dim
260.5Dim
270.5Dim
280.5Dim
290.5Dim
300.5Dim
310.6Dim
Planning a trip in December

Is December a good time to visit Ennis?

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

1.4
Sightseeing
10th-best month of the year
0.0
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Ennis.

What to pack for Ennis in December

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

In December, Ennis sees daytime highs around 9°C and nights near 4°C. Pack a warm layer and rain gear. About 16 days see rain.

a warm layerrain gear

Sea temperature near Ennis in December

The nearest coast averages about 10°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 41 km away) is warmest in August at about 16°C and coldest in February near 9°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
Feb9Bracing
Mar9Bracing
Apr10Bracing
May12Bracing
Jun14Bracing
Jul16Cool
Aug16Cool
Sep15Cool
Oct14Bracing
Nov12Bracing
Dec10Bracing

UV index in Ennis in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ennis peaks around August 12 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 12UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Ennis in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Ennis is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (July, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ennis's WHO annual average of 11.8 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 915 µg/m³Oct 229 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar15Moderate
Apr15Moderate
May13Moderate
Jun11Good
Jul9Good
Aug11Good
Sep11Good
Oct9Good
Nov10Good
Dec11Good
Location & terrain

Where is Ennis?

Ennis sits at 52.8°N, 9.0°W, 3 m above sea level, in Ireland. The nearest listed city is Limerick, 32 km away.

LimerickGalwayTraleeKillarneyAthloneCluain MealaBallincolligCork

Topography around Ennis

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ennis.

Within 3 km, the terrain around Ennis has only modest variations in elevation — a maximum elevation change of 74 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 268 m; within 80 km, large variations in elevation — a maximum elevation change of 937 m.

The land around Ennis is covered by grassland (53%) and trees (29%) within 3 km, grassland (70%) and trees (22%) within 16 km, and grassland (65%) and water (22%) within 80 km.

3 km
74 m
16 km
268 m
80 km
937 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Limerick 32 km · Galway 48 km · Tralee 80 km · Killarney 94 km · Athlone 95 km · Cluain Meala 102 km · Ballincollig 110 km · Cork 111 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 Ennis (52.8436°, -8.9864°, elevation 3 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).