Letterkenny weather in November

In November, Letterkenny sees average daytime highs of 10°C and overnight lows near 6°C, with 110 mm of precipitation across 18.8 wet days and about 8.1 hours of daylight. It is the 8th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 11°C in the first days to 9°C by the end. The sky is clear or mostly clear about 6% of the time in November, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of November to 7 h 24 min by month's end. Set against the rest of the year, November is Letterkenny's 6th-clearest and 5th-windiest month. For the whole year in context, see Letterkenny's year-round climate.

Daytime high
10°
8th warmest
Overnight low
6th coldest
Precipitation
110 mm
18.8 wet days
Daylight
8 h 06 min
8:14 AM – 4:18 PM
Cloud cover
79%
6th clearest
Wind
18 km/h
5th windiest
Solar energy
0.7 kWh/m²
Travel score
1.6
out of 10

Letterkenny is town in County Donegal, Ireland.

Density
472/km²
people per km²

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

Temperature in November

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 11°C in the first days to 9°C by the end.

A typical November day in Letterkenny reaches about 10°C in the afternoon and slips back to 6°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 13°C. Set against its neighbours, November runs about 3°C cooler than October and about 2°C warmer than December.

10°15°151015202530
Avg high (°C)Avg low (°C)
1117
2117
3116
4116
5116
6106
7106
8106
9106
10106
11106
12106
13106
14106
15106
16105
1795
1895
1995
2095
2195
2295
2395
2495
2595
2695
2795
2895
2995
3094

How November really feels in Letterkenny

Once humidity and wind are folded in, November averages 0 days that feel above 32°C and 0 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
0
wind chill below the day's low

November sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Letterkenny weather by month

How November compares with the rest of the year at a glance. November is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 10818.527.60.8
Feb / 9115.91.89.31.0
Mar / 88171.311.41.5
Apr11° / 8016.10.313.82.3
May14° / 8615.9015.83.3
Jun16° / 10°92160173.9
Jul17° / 12°10118016.54.3
Aug17° / 12°10517.8014.74.3
Sep15° / 10°8815.5012.53.9
Oct13° / 10517.1010.22.8
Nov10° / 11018.80.38.11.6
Dec / 11318.11.270.9

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in November.

Beyond those clear spells, partly cloudy skies cover about 13% of November, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11882
21882
31981
41981
51981
61981
71882
81882
91981
101981
111981
121981
131981
141981
151981
161981
171882
181882
191981
201981
211981
221981
231981
241981
251981
261981
271981
281981
291981
301981

Chance of precipitation in November

Any precipitationSnow

Letterkenny gets around 110 mm of rain and snow over 18.8 wet days in November. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 63% and peaks near 64% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1621
2631
3631
4631
5641
6641
7641
8641
9641
10641
11641
12641
13641
14641
15641
16631
17631
18631
19621
20621
21621
22611
23611
24611
25611
26612
27612
28612
29612
30612

Humidity in November

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, November 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%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in November

Winds average 18 km/h in November.

Across November, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze

Sunrise & sunset in November

DaylightNight

Daylight runs from about 9 hours at the start of November to 7 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over November. Sunrise moves from 7:44 AM to 8:39 AM, and sunset from 4:45 PM to 4:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:444:45
28.97:464:43
38.97:484:41
48.87:504:39
58.77:524:37
68.77:544:35
78.67:564:33
88.57:584:31
98.58:004:30
108.48:034:28
118.48:054:26
128.38:074:24
138.28:094:23
148.28:104:21
158.18:124:20
168.18:144:18
178.08:164:17
187.98:184:15
197.98:204:14
207.88:224:12
217.88:244:11
227.78:264:10
237.78:274:09
247.68:294:07
257.68:314:06
267.58:334:05
277.58:344:04
287.58:364:03
297.48:384:02
307.48:394:01

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 0.7 kWh/m².

For context, solar energy here swings from a low near 0.42 kWh/m² to a high of 4.85 kWh/m² in May across the year — November's 0.7 kWh/m² sits near the bottom.

00.511.52151015202530
Solar energy (kWh/m²)Level
11.0Dim
21.0Dim
31.0Dim
40.9Dim
50.9Dim
60.9Dim
70.9Dim
80.8Dim
90.8Dim
100.8Dim
110.8Dim
120.8Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.7Dim
180.7Dim
190.6Dim
200.6Dim
210.6Dim
220.6Dim
230.6Dim
240.6Dim
250.6Dim
260.6Dim
270.5Dim
280.5Dim
290.5Dim
300.5Dim
Planning a trip in November

Is November a good time to visit Letterkenny?

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

1.6
Sightseeing
8th-best month of the year
Beach & pool
never really warm enough

November is a weaker month for outdoor sightseeing in Letterkenny.

What to pack for Letterkenny in November

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

In November, Letterkenny sees daytime highs around 10°C and nights near 6°C. Pack a warm layer and rain gear. About 19 days see rain.

a warm layerrain gear

Sea temperature near Letterkenny in November

The nearest coast averages about 12°C in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 45 km away) is warmest in August at about 15°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
Apr9Bracing
May11Bracing
Jun13Bracing
Jul15Bracing
Aug15Cool
Sep15Bracing
Oct13Bracing
Nov12Bracing
Dec10Bracing

UV index in Letterkenny in November

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Letterkenny peaks around May 24 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowMay 24UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5High
Jun5High
Jul5High
Aug5Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Letterkenny?

Letterkenny sits at 55.0°N, 7.7°W, 8 m above sea level, in Ireland. The nearest listed city is Londonderry County Borough, 28 km away.

Londonderry County BoroughDerryOmaghColeraineSligoBallymenaAntrimPortadown

Topography around Letterkenny

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

Within 3 km, the terrain around Letterkenny has only modest variations in elevation — a maximum elevation change of 199 m around an average of 73 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 452 m; within 80 km, large variations in elevation — a maximum elevation change of 706 m.

The land around Letterkenny is covered by grassland (60%) and trees (25%) within 3 km, grassland (72%) and trees (20%) within 16 km, and grassland (53%) and water (38%) within 80 km.

3 km
199 m
16 km
452 m
80 km
706 m
treesgrasslandcroplandartificial surfaceswater
November weather nearby: Londonderry County Borough 28 km · Derry 28 km · Omagh 48 km · Coleraine 71 km · Sligo 89 km · Ballymena 94 km · Antrim 101 km · Portadown 101 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 Letterkenny (54.95°, -7.7333°, elevation 8 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).