AI-generatedCahersiveen at a glance
- Best time
- Jun, Sep
- Warmest month
- Aug · 18°
- Warmest sea
- Aug · 15.6°
- Sunshine a year
- 1,300 h
- Rain a year
- 1,153 mm
- Climate
- Maritime
- Time zone
- UTC+0 / UTC+1
- Elevation
- 15 m
Climate in Cahersiveen
Cahersiveen 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 1,300 hours of sunshine a year, Cahersiveen is rather dull; May is the sunniest month with 5.7 hours a day.
Holiday weather through the year
Best time to visit Cahersiveen
The best time to visit Cahersiveen is in June and in September. The sea stays too cool for a classic beach holiday: even in August it only reaches 15.6 °C. The wettest month is November with 126 mm of precipitation.
Cahersiveen through the seasons
How the weather changes over the seasons, with averages for each.
Cahersiveen in spring
Mar – May
Poor
- 11–15 °C by day
- Sea 11 °C
- 4.8 h of sun a day
- 46 rainy days in all
Cahersiveen in summer
Jun – Aug
Good
- 17–18 °C by day
- Sea 15 °C
- 4.9 h of sun a day
- 49 rainy days in all
Cahersiveen in autumn
Sep – Nov
Fair
- 12–17 °C by day
- Sea 14 °C
- 2.9 h of sun a day
- 50 rainy days in all
Cahersiveen in winter
Dec – Feb
Poor
- 10–11 °C by day
- Sea 10 °C
- 1.7 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 Cahersiveen 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
Fair
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 10°
- Midday, 13:00: about 14°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 13°
- Night, 23:00: about 12°
08:0318:49
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 07:43–08:50 · evening 18:03–19:10
- Blue hour
- Morning 07:29–07:43 · evening 19:10–19:23
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 Cahersiveen compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 16° at the start of the month to 13° at the end. The sea cools from 14° to 13°. The days get 1.9 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 16° | 13° |
| Night-time low | 11° | 9° |
| Sea | 14° | 13° |
| Daylight | 11.7 h | 9.8 h |
What is the weather like in Cahersiveen in October?
In October, Cahersiveen is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 13.6 °C – swimming is only for the hardy. The sun is scarce, with only about 2.9 hours a day. It rains often – on about 17 days, adding up to 116 mm. All in all, October is a so-so month for a holiday in Cahersiveen.
More details for October
- Daylight
- 10 h 46 min08:03 – 18:49
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 77 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1offset from UTC
How the score comes together
- Temperatureweight 50 %74 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %8 %
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
Compare two months in Cahersiveen
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Cahersiveen: score 64 against 40. In June, days are 2 °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.
| Month | October | June |
|---|---|---|
| Holiday weather score | 40 | 64better |
| Daytime high | 15° | 17° |
| Night-time low | 10° | 11° |
| Sea | 13.6° | 13.9° |
| Sunshine | 2.9 h | 5.6 hbetter |
| Rainy days | 17 | 15better |
| Rainfall | 116 mm | 77 mmbetter |
Based on the climate averages 1996–2025.
Cahersiveen month by month
The typical weather for every month at a glance.
12January10° · Sea 10° · 1.5 h
In January, Cahersiveen is cool: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 9.9 °C – swimming is only for the hardy. The sun is scarce, with only about 1.5 hours a day. It rains often – on about 18 days, adding up to 110 mm. All in all, January is not an ideal month for a holiday in Cahersiveen.
Cahersiveen in January18February10° · Sea 10° · 2.3 h
In February, Cahersiveen is cool: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 9.6 °C – swimming is only for the hardy. The sun is scarce, with only about 2.3 hours a day. It rains often – on about 16 days, adding up to 97 mm. All in all, February is not an ideal month for a holiday in Cahersiveen.
Cahersiveen in February25March11° · Sea 10° · 3.4 h
In March, Cahersiveen is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 9.6 °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 88 mm. All in all, March is not an ideal month for a holiday in Cahersiveen.
Cahersiveen in March41April13° · Sea 10° · 5.3 h
In April, Cahersiveen is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sea averages 10.3 °C – swimming is only for the hardy. Expect around 5.3 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 Cahersiveen.
Cahersiveen in April51May15° · Sea 12° · 5.7 h
In May, Cahersiveen is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sea averages 11.8 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. It rains often – on about 16 days, adding up to 82 mm. All in all, May is a so-so month for a holiday in Cahersiveen.
Cahersiveen in May64June17° · Sea 14° · 5.6 h
In June, Cahersiveen is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 5.6 hours of sunshine a day. It rains often – on about 15 days, adding up to 77 mm. All in all, June is a good month for a holiday in Cahersiveen.
Cahersiveen in June59July18° · Sea 15° · 4.4 h
In July, Cahersiveen is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 15.2 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. It rains often – on about 16 days, adding up to 80 mm. All in all, July is a so-so month for a holiday in Cahersiveen.
Cahersiveen in July56August18° · Sea 16° · 4.6 h
In August, Cahersiveen is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 15.6 °C – swimming is only for the hardy. Expect around 4.6 hours of sunshine a day. It rains often – on about 18 days, adding up to 93 mm. All in all, August is a so-so month for a holiday in Cahersiveen.
Cahersiveen in August60September17° · Sea 15° · 4.0 h
In September, Cahersiveen is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sea averages 15.0 °C – swimming is only for the hardy. Expect around 4.0 hours of sunshine a day. It rains often – on about 15 days, adding up to 86 mm. All in all, September is a good month for a holiday in Cahersiveen.
Cahersiveen in September40October15° · Sea 14° · 2.9 h
In October, Cahersiveen is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 13.6 °C – swimming is only for the hardy. The sun is scarce, with only about 2.9 hours a day. It rains often – on about 17 days, adding up to 116 mm. All in all, October is a so-so month for a holiday in Cahersiveen.
Cahersiveen in October23November12° · Sea 12° · 1.8 h
In November, Cahersiveen is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 12.0 °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. All in all, November is not an ideal month for a holiday in Cahersiveen.
Cahersiveen in November15December11° · Sea 11° · 1.2 h
In December, Cahersiveen is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 10.7 °C – swimming is only for the hardy. The sun is scarce, with only about 1.2 hours a day. It rains often – on about 18 days, adding up to 125 mm. All in all, December is not an ideal month for a holiday in Cahersiveen.
Cahersiveen in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Cahersiveen
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 January (5°), the warmest in July (13°). Nights fall below 8 °C on average from December 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 | 12 | 10° | 5° | 9.9° | 1.5 h | 18 | 110 |
| FebruaryFeb | 18 | 10° | 5° | 9.6° | 2.3 h | 16 | 97 |
| MarchMar | 25 | 11° | 6° | 9.6° | 3.4 h | 15 | 88 |
| AprilApr | 41 | 13° | 7° | 10.3° | 5.3 h | 14 | 75 |
| MayMay | 51 | 15° | 9° | 11.8° | 5.7 h | 16 | 82 |
| JuneJun | 64 | 17° | 11° | 13.9° | 5.6 h | 15 | 77 |
| JulyJul | 59 | 18° | 13° | 15.2° | 4.4 h | 16 | 80 |
| AugustAug | 56 | 18° | 13° | 15.6° | 4.6 h | 18 | 93 |
| SeptemberSep | 60 | 17° | 12° | 15.0° | 4.0 h | 15 | 86 |
| OctoberOct | 40 | 15° | 10° | 13.6° | 2.9 h | 17 | 116 |
| NovemberNov | 23 | 12° | 8° | 12.0° | 1.8 h | 18 | 126 |
| DecemberDec | 15 | 11° | 6° | 10.7° | 1.2 h | 18 | 125 |
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
51.95° N, 10.22° W · 15 m · Europe/Dublin
Sea temperature in Cahersiveen
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 12.6 – 14.4 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Cahersiveen ranges from 9.6 °C in February to 15.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea temperature varies from year to year: in August, eight out of ten years were between 15.0 and 16.4 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 9.9° | 9.0° | 10.5° | cold |
| FebruaryFeb | 9.6° | 8.9° | 10.1° | cold |
| MarchMar | 9.6° | 9.0° | 10.1° | cold |
| AprilApr | 10.3° | 9.6° | 10.8° | cold |
| MayMay | 11.8° | 10.9° | 12.5° | cold |
| JuneJun | 13.9° | 13.1° | 14.8° | cold |
| JulyJul | 15.2° | 14.3° | 16.5° | cold |
| AugustAug | 15.6° | 15.0° | 16.4° | cold |
| SeptemberSep | 15.0° | 14.3° | 16.2° | cold |
| OctoberOct | 13.6° | 12.6° | 14.4° | cold |
| NovemberNov | 12.0° | 11.3° | 12.7° | cold |
| DecemberDec | 10.7° | 10.3° | 11.2° | cold |
Sunshine hours in Cahersiveen
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 2.9 of 10.8 hours of daylight in Cahersiveen, 27 % of the daylight hours.
Sunshine hours: measured at the weather station 2 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Cahersiveen: 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, Cahersiveen has about 17 rainy days with 116 mm of rain in total.
UV index in Cahersiveen
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 70 min
- Fair skin
- about 90 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 and clouds in Cahersiveen
How breezy and how cloudy Cahersiveen 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 Cahersiveen typically peaks at 23 km/h during the day: Beaufort 4, moderate 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 77 % of the sky over Cahersiveen: mostly cloudy, with about 2.9 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 Cahersiveen
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Cahersiveen 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.
Cahersiveen has its best school-holiday weather during the summer holidays (score 57) and its weakest during the Christmas holidays (score 14).
- 36
Easter holidays
Mar – Apr
Poor
- 12 °C by day
- Sea 10 °C
- 4.7 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 54
May half-term
May – Jun
Fair
- 15 °C by day
- Sea 12 °C
- 5.7 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain
- 57
Summer holidays
Jul – Aug
FairBest holidays
- 18 °C by day
- Sea 15 °C
- 4.5 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain
- 40
October half-term
Oct
Fair
- 15 °C by day
- Sea 14 °C
- 2.9 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain
- 14
Christmas holidays
Dec – Jan
Poor
- 10 °C by day
- Sea 10 °C
- 1.4 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 20 min
- Distance
- 670 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.
Compare & alternatives
Cahersiveen compared
Put Cahersiveen side by side with another destination.
Cahersiveen vs Dingle/Daingean Uí Chúis
In October the holiday weather in Cahersiveen and Dingle/Daingean Uí Chúis is about equally good (score 40 vs 40). During the day it is about as warm in Dingle/Daingean Uí Chúis as in Cahersiveen. The sea is about equally warm.
| in October | Cahersiveen | Dingle/Daingean Uí Chúis |
|---|---|---|
| Holiday weather score | 40 | 40 |
| Daytime high | 15° | 15° |
| Sea | 14° | 14° |
| Sunshine | 3 h | 3 h |
| Rainy days | 17 | 17 |
| Best time | Jun, Sep | Jun, Sep |
Through the year
Ireland in October: the best places
In October, Cahersiveen ranks 11 among the 31 nearest destinations in this country.
- Clonmel15°47
- 2Dungarvan15°14°44
- 3Tramore14°14°44
- 4Kilkenny14°43
- 5Bantry15°14°42
- 6Cork14°14°42
- 7Waterford15°42
- 8Kenmare15°14°41
- 11CahersiveenThis page15°14°40
Near Cahersiveen
Other destinations close by.
Places with a climate like Cahersiveen
Destinations whose weather through the year is closest to Cahersiveen's – good alternatives.
Frequently asked questions about Cahersiveen
When is the best time to visit Cahersiveen?
The best time to visit Cahersiveen is in June and in September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Cahersiveen?
The sea temperature in Cahersiveen ranges from 9.6 °C in February to 15.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Cahersiveen in October?
Only if you don't mind cold water: in October the sea averages just 13.6 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Cahersiveen?
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 Cahersiveen?
The wettest month is November with 126 mm of precipitation. The driest month is April with 75 mm.
How many hours of sunshine does Cahersiveen get?
Cahersiveen gets around 1,300 hours of sunshine a year. The sunniest month is May with 5.7 hours a day; in December there are 1.2 hours a day.
What time zone is Cahersiveen in?
Cahersiveen is on UTC+0 in January and UTC+1 in July.
How long is the flight from London to Cahersiveen?
A nonstop flight from London to Cahersiveen takes about 1 h 20 min, for a straight-line distance of about 670 km.
Which school holidays are best for Cahersiveen?
Cahersiveen has its best school-holiday weather during the summer holidays (score 57) and its weakest during the Christmas holidays (score 14). Holiday ratings (0–100): Easter holidays 36, May half-term 54, summer holidays 57, October half-term 40, Christmas holidays 14.