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Clifden weather & best time to visit

Nature escape

Clifden at a glance

Best time
Jun
Warmest month
Aug · 18°
Warmest sea
Aug · 15.9°
Sunshine a year
1,540 h
Rain a year
1,320 mm
Climate
Maritime
Time zone
UTC+0 / UTC+1
Elevation
25 m

Climate in Clifden

Clifden has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 18 °C, while January is the coolest at 10 °C. With around 1,540 hours of sunshine a year, Clifden is rather dull; May is the sunniest month with 7.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Clifden

The best time to visit Clifden is in June. The sea stays too cool for a classic beach holiday: even in August it only reaches 15.9 °C. The wettest month is December with 148 mm of precipitation.

Clifden through the seasons

How the weather changes over the seasons, with averages for each.

Clifden in spring

Mar – May

41

Fair

  • 11–15 °C by day
  • Sea 10 °C
  • 5.7 h of sun a day
  • 46 rainy days in all

Clifden in summer

Jun – Aug

61

Good

  • 17–18 °C by day
  • Sea 15 °C
  • 5.8 h of sun a day
  • 52 rainy days in all

Clifden in autumn

Sep – Nov

38

Poor

  • 12–17 °C by day
  • Sea 14 °C
  • 3.4 h of sun a day
  • 54 rainy days in all

Clifden in winter

Dec – Feb

10

Poor

  • 10 °C by day
  • Sea 10 °C
  • 2.0 h of sun a day
  • 55 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 Clifden for you.

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

35

Holiday weather in October

Poor

Best time to visit: June

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 10°
  2. Midday, 13:00: about 14°
  3. Afternoon, 16:00: about 14°
  4. Evening, 20:00: about 12°
  5. Night, 23:00: about 11°

08:0518:46

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:43–08:53 · evening 17:58–19:08
Blue hour
Morning 07:30–07:43 · evening 19:08–19:22

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 Clifden compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 15° at the start of the month to 13° at the end. The sea cools from 14° to 13°. The days get 2.0 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high15°13°
Night-time low11°8°
Sea14°13°
Daylight11.7 h9.7 h

What is the weather like in Clifden in October?

In October, Clifden is cool: daytime highs average 14 °C, and nights cool down to about 10 °C. The sea averages 13.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.4 hours a day. It rains often – on about 18 days, adding up to 142 mm. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, October is not an ideal month for a holiday in Clifden.

More details for October

Daylight
10 h 42 min08:05 – 18:46
UV index
2 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
31 km/haverage daily peakAll months
Cloud cover
76 %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 %68 %
  • Sunshineweight 20 %7 %
  • Few rainy daysweight 30 %0 %

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 Clifden

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

June has the better holiday weather in Clifden: score 64 against 35. In June, days are 3 °C warmer than in October. The sea is about as warm in both months. June has 2 fewer rainy days. The sun shines 3 hours longer a day in June.

October vs June, Clifden
MonthOctoberJune
Holiday weather score3564better
Daytime high14°17°
Night-time low10°11°
Sea13.8°13.8°
Sunshine3.4 h6.5 hbetter
Rainy days1816better
Rainfall142 mm87 mmbetter

Based on the climate averages 1996–2025.

Clifden month by month

The typical weather for every month at a glance.

8January10° · Sea 10° · 1.8 h

In January, Clifden is cold: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 9.5 °C – swimming is only for the hardy. The sun is scarce, with only about 1.8 hours a day. It rains often – on about 18 days, adding up to 126 mm. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, January is not an ideal month for a holiday in Clifden.

Clifden in January
11February10° · Sea 9° · 2.7 h

In February, Clifden is cold: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 9.0 °C – swimming is only for the hardy. The sun is scarce, with only about 2.7 hours a day. It rains often – on about 17 days, adding up to 110 mm. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, February is not an ideal month for a holiday in Clifden.

Clifden in February
22March11° · Sea 9° · 3.9 h

In March, Clifden is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 8.9 °C – swimming is only for the hardy. The sun is scarce, with only about 3.9 hours a day. It rains often – on about 16 days, adding up to 91 mm. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, March is not an ideal month for a holiday in Clifden.

Clifden in March
44April13° · Sea 10° · 6.2 h

In April, Clifden is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sea averages 9.9 °C – swimming is only for the hardy. Expect around 6.2 hours of sunshine a day. It rains often – on about 14 days, adding up to 75 mm. All in all, April is a so-so month for a holiday in Clifden.

Clifden in April
56May15° · Sea 12° · 7.0 h

In May, Clifden is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sea averages 11.7 °C – swimming is only for the hardy. The sun shines for around 7.0 hours a day. It rains often – on about 16 days, adding up to 85 mm. All in all, May is a so-so month for a holiday in Clifden.

Clifden in May
64June17° · Sea 14° · 6.5 h

In June, Clifden is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 13.8 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. It rains often – on about 16 days, adding up to 87 mm. All in all, June is a good month for a holiday in Clifden.

Clifden in June
59July18° · Sea 15° · 5.3 h

In July, Clifden is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 15.3 °C – swimming is only for the hardy. Expect around 5.3 hours of sunshine a day. It rains often – on about 17 days, adding up to 92 mm. All in all, July is a so-so month for a holiday in Clifden.

Clifden in July
59August18° · Sea 16° · 5.6 h

In August, Clifden is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 15.9 °C – swimming is only for the hardy. Expect around 5.6 hours of sunshine a day. It rains often – on about 19 days, adding up to 112 mm. All in all, August is a so-so month for a holiday in Clifden.

Clifden in August
59September17° · Sea 15° · 4.6 h

In September, Clifden is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sea averages 15.2 °C – swimming is only for the hardy. Expect around 4.6 hours of sunshine a day. It rains often – on about 16 days, adding up to 105 mm. All in all, September is a so-so month for a holiday in Clifden.

Clifden in September
35October14° · Sea 14° · 3.4 h

In October, Clifden is cool: daytime highs average 14 °C, and nights cool down to about 10 °C. The sea averages 13.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.4 hours a day. It rains often – on about 18 days, adding up to 142 mm. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, October is not an ideal month for a holiday in Clifden.

Clifden in October
20November12° · Sea 12° · 2.1 h

In November, Clifden is cool: daytime highs average 12 °C, and nights cool down to about 7 °C. The sea averages 12.1 °C – swimming is only for the hardy. The sun is scarce, with only about 2.1 hours a day. It rains often – on about 19 days, adding up to 146 mm. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, November is not an ideal month for a holiday in Clifden.

Clifden in November
11December10° · Sea 11° · 1.6 h

In December, Clifden is cold: daytime highs average 10 °C, and nights cool down to about 6 °C. The sea averages 10.6 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. It rains often – on about 20 days, adding up to 148 mm. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, December is not an ideal month for a holiday in Clifden.

Clifden in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Clifden

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 10°. A duvet at night and a jumper for the evening.

The coolest nights are in February (5°), 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.

OctoberDay 14°Night 10°Sea 14°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan810°5°9.5°1.8 h18126
FebruaryFeb1110°5°9.0°2.7 h17110
MarchMar2211°6°8.9°3.9 h1691
AprilApr4413°7°9.9°6.2 h1475
MayMay5615°9°11.7°7.0 h1685
JuneJun6417°11°13.8°6.5 h1687
JulyJul5918°13°15.3°5.3 h1792
AugustAug5918°13°15.9°5.6 h19112
SeptemberSep5917°12°15.2°4.6 h16105
OctoberOct3514°10°13.8°3.4 h18142
NovemberNov2012°7°12.1°2.1 h19146
DecemberDec1110°6°10.6°1.6 h20148

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

53.49° N, 10.02° W · 25 m · Europe/Dublin

Sea temperature
Swimming calendar

Sea temperature in Clifden

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October13.8°Ccold

8 in 10 years: 13.1 – 14.4 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 13.8°8 in 10 years 13.1° – 14.4°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Clifden ranges from 8.9 °C in March to 15.9 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

From November to December 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 15.4 and 16.6 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan9.5°9.0°10.0°cold
FebruaryFeb9.0°8.3°9.4°cold
MarchMar8.9°8.2°9.5°cold
AprilApr9.9°9.1°10.6°cold
MayMay11.7°10.9°12.6°cold
JuneJun13.8°13.0°14.8°cold
JulyJul15.3°14.5°16.2°cold
AugustAug15.9°15.4°16.6°cold
SeptemberSep15.2°14.5°15.9°cold
OctoberOct13.8°13.1°14.4°cold
NovemberNov12.1°11.4°12.7°cold
DecemberDec10.6°10.0°11.2°cold
Sunshine
Sunshine

Sunshine hours in Clifden

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,540 hours
Sunniest month
May · 7.0 h a day
Least sunshine
Dec · 1.6 h a day
OctoberSunshine 3.4 hDaylight 10.7 hShare of daylight 32 %
SunshineDaylight

In October, the sun shines for about 3.4 of 10.7 hours of daylight in Clifden, 32 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Clifden: 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.

Per year
1,320 mm on 206 days
Wettest month
Dec · 148 mm
Driest month
Apr · 75 mm
OctoberRainy days 18Rainfall 142 mm

In October, Clifden has about 18 rainy days with 142 mm of rain in total.

UV index
Sun protection

UV index in Clifden

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
2 · lowLittle protection needed; sunglasses on bright days.

The sun is strongest in June (UV 7).

Minutes until sunburn in October

Very fair skin
about 80 min
Fair skin
about 100 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 & clouds

Wind and clouds in Clifden

How breezy and how cloudy Clifden 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.

Year average
29 km/h · fresh breeze
Windiest month
Dec · 34 km/h
Calmest month
Jul · 24 km/h
OctoberWind 31 km/hBeaufort 5
20
WindBeaufort 4

In October, the wind in Clifden typically peaks at 31 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.

Year average
75 % · mostly cloudy
Clearest month
Apr · 70 %
Cloudiest month
Jul · 80 %
OctoberCloud cover 76 %Sunshine 3.4 h

In October, cloud covers on average 76 % of the sky over Clifden: mostly cloudy, with about 3.4 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 Clifden

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Clifden 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.

Clifden has its best school-holiday weather during the summer holidays (score 59) and its weakest during the Christmas holidays (score 10).

  • Easter holidays

    Mar – Apr

    37

    Poor

    • 12 °C by day
    • Sea 10 °C
    • 5.5 h of sun a day
    • 15 rainy days a month

    Keep in mind: Frequent rain

  • May half-term

    May – Jun

    58

    Fair

    • 15 °C by day
    • Sea 12 °C
    • 6.9 h of sun a day
    • 16 rainy days a month

    Keep in mind: Frequent rain

  • Summer holidays

    Jul – Aug

    59

    FairBest holidays

    • 18 °C by day
    • Sea 16 °C
    • 5.5 h of sun a day
    • 18 rainy days a month

    Keep in mind: Frequent rain

  • October half-term

    Oct

    35

    Poor

    • 14 °C by day
    • Sea 14 °C
    • 3.4 h of sun a day
    • 18 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    10

    Poor

    • 10 °C by day
    • Sea 10 °C
    • 1.7 h of sun a day
    • 19 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 20 min
Distance
680 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

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Clifden compared

Put Clifden side by side with another destination.

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Clifden vs Westport

In October the holiday weather in Clifden and Westport is about equally good (score 35 vs 35). During the day it is about as warm in Westport as in Clifden. The sea is about equally warm.

Clifden vs Westport, in October
in OctoberClifdenWestport
Holiday weather score3535
Daytime high14°14°
Sea14°14°
Sunshine3 h3 h
Rainy days1818
Best timeJunMay – Jun, Sep

Through the year

OctoberClifden 14°Westport 14°
ClifdenWestport
Go to Westport
Best places in the country
Ranking

Ireland in October: the best places

In October, Clifden ranks 20 among the 31 nearest destinations in this country.

  1. Tullamore14°42
  2. 2Adare14°41
  3. 3Thurles14°41
  4. 4Athenry14°40
  5. 5Ballymahon14°40
  6. 6Dingle/Daingean Uí Chúis15°14°40
  7. 7Killorglin15°14°40
  8. 8Killarney15°40
  9. 20ClifdenThis page14°14°35
All destinations: Ireland
Places nearby

Near Clifden

Other destinations close by.

Places with a similar climate

Places with a climate like Clifden

Destinations whose weather through the year is closest to Clifden's – good alternatives.

  1. 88 % similar40Dingle/Daingean Uí ChúisIreland15°14°Best time: Jun, Sep
  2. 87 % similar40CahersiveenIreland15°14°Best time: Jun, Sep
  3. 87 % similar40KillorglinIreland15°14°Best time: Jun – Jul, Sep
  4. 86 % similar41KenmareIreland15°14°Best time: Jun – Sep

Frequently asked questions about Clifden

When is the best time to visit Clifden?

The best time to visit Clifden is in June. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Clifden?

The sea temperature in Clifden ranges from 8.9 °C in March to 15.9 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Clifden in October?

Only if you don't mind cold water: in October the sea averages just 13.8 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Clifden?

August is the warmest month, with average highs of 18 °C and nights around 13 °C. January is the coolest month at 10 °C.

When does it rain most in Clifden?

The wettest month is December with 148 mm of precipitation. The driest month is April with 75 mm.

How many hours of sunshine does Clifden get?

Clifden gets around 1,540 hours of sunshine a year. The sunniest month is May with 7.0 hours a day; in December there are 1.6 hours a day.

What time zone is Clifden in?

Clifden is on UTC+0 in January and UTC+1 in July.

How long is the flight from London to Clifden?

A nonstop flight from London to Clifden takes about 1 h 20 min, for a straight-line distance of about 680 km.

Which school holidays are best for Clifden?

Clifden has its best school-holiday weather during the summer holidays (score 59) and its weakest during the Christmas holidays (score 10). Holiday ratings (0–100): Easter holidays 37, May half-term 58, summer holidays 59, October half-term 35, Christmas holidays 10.