AI-generatedCarndonagh at a glance
- Best time
- Jun – Sep
- Warmest month
- Aug · 17°
- Warmest sea
- Aug · 14.8°
- Sunshine a year
- 1,310 h
- Rain a year
- 1,018 mm
- Climate
- Maritime
- Time zone
- UTC+0 / UTC+1
- Elevation
- 32 m
Climate in Carndonagh
Carndonagh has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 17 °C, while January is the coolest at 8 °C. With around 1,310 hours of sunshine a year, Carndonagh is rather dull; May is the sunniest month with 6.5 hours a day.
Holiday weather through the year
Best time to visit Carndonagh
The best time to visit Carndonagh is from June to September. The sea stays too cool for a classic beach holiday: even in August it only reaches 14.8 °C. The wettest month is December with 101 mm of precipitation.
Carndonagh through the seasons
How the weather changes over the seasons, with averages for each.
Carndonagh in spring
Mar – May
Poor
- 10–13 °C by day
- Sea 9 °C
- 5.1 h of sun a day
- 45 rainy days in all
Carndonagh in summer
Jun – Aug
Fair
- 15–17 °C by day
- Sea 14 °C
- 5.0 h of sun a day
- 49 rainy days in all
Carndonagh in autumn
Sep – Nov
Poor
- 11–16 °C by day
- Sea 13 °C
- 2.7 h of sun a day
- 50 rainy days in all
Carndonagh in winter
Dec – Feb
Poor
- 8–9 °C by day
- Sea 9 °C
- 1.6 h of sun a day
- 51 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Carndonagh for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: June – September
Where to go in OctoberSea temperature in October
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 13°
- Afternoon, 16:00: about 13°
- Evening, 20:00: about 11°
- Night, 23:00: about 10°
07:5718:33
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:34–08:47 · evening 17:42–18:55
- Blue hour
- Morning 07:20–07:34 · evening 18:55–19:09
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Carndonagh compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 14° at the start of the month to 12° at the end. The sea cools from 14° to 13°. The days get 2.2 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 14° | 12° |
| Night-time low | 10° | 8° |
| Sea | 14° | 13° |
| Daylight | 11.6 h | 9.5 h |
What is the weather like in Carndonagh in October?
In October, Carndonagh is cool: daytime highs average 13 °C, and nights cool down to about 9 °C. The sea averages 13.3 °C – swimming is only for the hardy. The sun is scarce, with only about 2.6 hours a day. It rains often – on about 17 days, adding up to 101 mm. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, October is not an ideal month for a holiday in Carndonagh.
More details for October
- Daylight
- 10 h 36 min07:57 – 18:33
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 29 km/haverage daily peakAll months
- Cloud cover
- 78 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1offset from UTC
How the score comes together
- Temperatureweight 50 %58 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %7 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
- Windproof jacket
Compare two months in Carndonagh
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Carndonagh: score 58 against 31. In July, days are 4 °C warmer than in October. The sea is 1 °C warmer in July. The sun shines 2 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 31 | 58better |
| Daytime high | 13° | 17° |
| Night-time low | 9° | 12° |
| Sea | 13.3° | 13.9° |
| Sunshine | 2.6 h | 4.7 hbetter |
| Rainy days | 17 | 17 |
| Rainfall | 101 mm | 84 mmbetter |
Based on the climate averages 1996–2025.
Carndonagh month by month
The typical weather for every month at a glance.
3January8° · Sea 9° · 1.3 h
In January, Carndonagh is cold: daytime highs average 8 °C, and nights cool down to about 4 °C. The sea averages 9.0 °C – swimming is only for the hardy. The sun is scarce, with only about 1.3 hours a day. It rains often – on about 18 days, adding up to 92 mm. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, January is not an ideal month for a holiday in Carndonagh.
Carndonagh in January8February9° · Sea 8° · 2.4 h
In February, Carndonagh is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sea averages 8.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2.4 hours a day. It rains often – on about 16 days, adding up to 83 mm. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, February is not an ideal month for a holiday in Carndonagh.
Carndonagh in February17March10° · Sea 8° · 3.4 h
In March, Carndonagh is cold: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 8.4 °C – swimming is only for the hardy. The sun is scarce, with only about 3.4 hours a day. It rains often – on about 15 days, adding up to 69 mm. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, March is not an ideal month for a holiday in Carndonagh.
Carndonagh in March32April11° · Sea 9° · 5.3 h
In April, Carndonagh is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 9.0 °C – swimming is only for the hardy. Expect around 5.3 hours of sunshine a day. It rains often – on about 15 days, adding up to 67 mm. All in all, April is not an ideal month for a holiday in Carndonagh.
Carndonagh in April48May13° · Sea 11° · 6.5 h
In May, Carndonagh is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sea averages 10.5 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. It rains often – on about 15 days, adding up to 71 mm. All in all, May is a so-so month for a holiday in Carndonagh.
Carndonagh in May55June15° · Sea 12° · 5.5 h
In June, Carndonagh is cool: daytime highs average 15 °C, and nights cool down to about 11 °C. The sea averages 12.3 °C – swimming is only for the hardy. Expect around 5.5 hours of sunshine a day. It rains often – on about 15 days, adding up to 78 mm. All in all, June is a so-so month for a holiday in Carndonagh – and yet one of the best months here.
Carndonagh in June58July17° · Sea 14° · 4.7 h
In July, Carndonagh is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. It rains often – on about 17 days, adding up to 84 mm. All in all, July is a so-so month for a holiday in Carndonagh – and yet one of the best months here.
Carndonagh in July57August17° · Sea 15° · 4.7 h
In August, Carndonagh is mild: daytime highs average 17 °C, and nights cool down to about 13 °C. The sea averages 14.8 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. It rains often – on about 17 days, adding up to 93 mm. All in all, August is a so-so month for a holiday in Carndonagh – and yet one of the best months here.
Carndonagh in August53September16° · Sea 15° · 3.8 h
In September, Carndonagh is cool: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 14.6 °C – swimming is only for the hardy. The sun is scarce, with only about 3.8 hours a day. It rains often – on about 15 days, adding up to 78 mm. All in all, September is a so-so month for a holiday in Carndonagh – and yet one of the best months here.
Carndonagh in September31October13° · Sea 13° · 2.6 h
In October, Carndonagh is cool: daytime highs average 13 °C, and nights cool down to about 9 °C. The sea averages 13.3 °C – swimming is only for the hardy. The sun is scarce, with only about 2.6 hours a day. It rains often – on about 17 days, adding up to 101 mm. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, October is not an ideal month for a holiday in Carndonagh.
Carndonagh in October14November11° · Sea 12° · 1.6 h
In November, Carndonagh is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 11.8 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. It rains often – on about 18 days, adding up to 100 mm. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, November is not an ideal month for a holiday in Carndonagh.
Carndonagh in November5December9° · Sea 10° · 1.1 h
In December, Carndonagh is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sea averages 10.3 °C – swimming is only for the hardy. The sun is scarce, with only about 1.1 hours a day. It rains often – on about 18 days, adding up to 101 mm. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, December is not an ideal month for a holiday in Carndonagh.
Carndonagh in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Carndonagh
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
CoolOctober: nights around 9°. A duvet at night and a jumper for the evening.
The coolest nights are in January (4°), the warmest in August (13°). Nights fall below 8 °C on average from November to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 3 | 8° | 4° | 9.0° | 1.3 h | 18 | 92 |
| FebruaryFeb | 8 | 9° | 4° | 8.4° | 2.4 h | 16 | 83 |
| MarchMar | 17 | 10° | 5° | 8.4° | 3.4 h | 15 | 69 |
| AprilApr | 32 | 11° | 6° | 9.0° | 5.3 h | 15 | 67 |
| MayMay | 48 | 13° | 8° | 10.5° | 6.5 h | 15 | 71 |
| JuneJun | 55 | 15° | 11° | 12.3° | 5.5 h | 15 | 78 |
| JulyJul | 58 | 17° | 12° | 13.9° | 4.7 h | 17 | 84 |
| AugustAug | 57 | 17° | 13° | 14.8° | 4.7 h | 17 | 93 |
| SeptemberSep | 53 | 16° | 11° | 14.6° | 3.8 h | 15 | 78 |
| OctoberOct | 31 | 13° | 9° | 13.3° | 2.6 h | 17 | 101 |
| NovemberNov | 14 | 11° | 6° | 11.8° | 1.6 h | 18 | 100 |
| DecemberDec | 5 | 9° | 4° | 10.3° | 1.1 h | 18 | 101 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
55.25° N, 7.27° W · 32 m · Europe/Dublin
Sea temperature
Sea temperature in Carndonagh
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 12.8 – 13.7 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Carndonagh ranges from 8.4 °C in February to 14.8 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
From October to January the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 14.3 and 15.6 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 9.0° | 8.4° | 9.5° | cold |
| FebruaryFeb | 8.4° | 7.8° | 8.9° | cold |
| MarchMar | 8.4° | 7.5° | 8.9° | cold |
| AprilApr | 9.0° | 8.2° | 9.6° | cold |
| MayMay | 10.5° | 9.8° | 11.4° | cold |
| JuneJun | 12.3° | 11.6° | 13.2° | cold |
| JulyJul | 13.9° | 13.2° | 14.7° | cold |
| AugustAug | 14.8° | 14.3° | 15.6° | cold |
| SeptemberSep | 14.6° | 14.0° | 15.2° | cold |
| OctoberOct | 13.3° | 12.8° | 13.7° | cold |
| NovemberNov | 11.8° | 11.1° | 12.5° | cold |
| DecemberDec | 10.3° | 9.7° | 10.7° | cold |
Sunshine
Sunshine hours in Carndonagh
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 2.6 of 10.6 hours of daylight in Carndonagh, 25 % of the daylight hours.
Sunshine hours: measured at the weather station 14 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Carndonagh: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Carndonagh has about 17 rainy days with 101 mm of rain in total.
UV index
UV index in Carndonagh
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 1 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 7).
Minutes until sunburn in October
- Very fair skin
- about 95 min
- Fair skin
- about 120 min
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Carndonagh
How breezy and how cloudy Carndonagh is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Carndonagh typically peaks at 29 km/h during the day: Beaufort 5, fresh breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 78 % of the sky over Carndonagh: mostly cloudy, with about 2.6 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Planning a trip to Carndonagh
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Carndonagh in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Carndonagh has its best school-holiday weather during the summer holidays (score 57) and its weakest during the Christmas holidays (score 4).
- 28
Easter holidays
Mar – Apr
Poor
- 11 °C by day
- Sea 9 °C
- 4.7 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 49
May half-term
May – Jun
Fair
- 14 °C by day
- Sea 11 °C
- 6.3 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 57
Summer holidays
Jul – Aug
FairBest holidays
- 17 °C by day
- Sea 14 °C
- 4.7 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain
- 31
October half-term
Oct
Poor
- 13 °C by day
- Sea 13 °C
- 2.6 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain
- 4
Christmas holidays
Dec – Jan
Poor
- 9 °C by day
- Sea 10 °C
- 1.2 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 15 min
- Distance
- 620 km
- Time zone
- UTC+1
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Ireland
- Currency
- Euro (EUR)
- Languages
- English, Irish
- Sockets
- Type G · 230 V
- Traffic
- Drives on the left
- Dialling code
- +353
- Emergency number
- 112
UK plugs fit
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Carndonagh compared
Put Carndonagh side by side with another destination.
Carndonagh vs Buncrana
In October the holiday weather in Carndonagh and Buncrana is about equally good (score 31 vs 32). During the day it is about as warm in Buncrana as in Carndonagh. The sea is about equally warm.
| in October | Carndonagh | Buncrana |
|---|---|---|
| Holiday weather score | 31 | 32 |
| Daytime high | 13° | 13° |
| Sea | 13° | 13° |
| Sunshine | 3 h | 3 h |
| Rainy days | 17 | 17 |
| Best time | Jun – Sep | Jun |
Through the year
Best places in the country
Ireland in October: the best places
In October, Carndonagh ranks 23 among the 31 nearest destinations in this country.
- Skerries14°14°48
- 2Trim14°44
- 3Slane14°43
- 4Carrickmacross14°42
- 5Kells14°42
- 6Balbriggan14°14°42
- 7Dundalk14°13°41
- 8Navan14°41
- 23CarndonaghThis page13°13°31
Places nearby
Near Carndonagh
Other destinations close by.
Places with a similar climate
Places with a climate like Carndonagh
Destinations whose weather through the year is closest to Carndonagh's – good alternatives.
Frequently asked questions about Carndonagh
When is the best time to visit Carndonagh?
The best time to visit Carndonagh is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Carndonagh?
The sea temperature in Carndonagh ranges from 8.4 °C in February to 14.8 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Carndonagh in October?
Only if you don't mind cold water: in October the sea averages just 13.3 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Carndonagh?
August is the warmest month, with average highs of 17 °C and nights around 13 °C. January is the coolest month at 8 °C.
When does it rain most in Carndonagh?
The wettest month is December with 101 mm of precipitation. The driest month is April with 67 mm.
How many hours of sunshine does Carndonagh get?
Carndonagh gets around 1,310 hours of sunshine a year. The sunniest month is May with 6.5 hours a day; in December there are 1.1 hours a day.
What time zone is Carndonagh in?
Carndonagh is on UTC+0 in January and UTC+1 in July.
How long is the flight from London to Carndonagh?
A nonstop flight from London to Carndonagh takes about 1 h 15 min, for a straight-line distance of about 620 km.
Which school holidays are best for Carndonagh?
Carndonagh has its best school-holiday weather during the summer holidays (score 57) and its weakest during the Christmas holidays (score 4). Holiday ratings (0–100): Easter holidays 28, May half-term 49, summer holidays 57, October half-term 31, Christmas holidays 4.