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Achill Island in October 2026: weather, temperatures and activities

Do you want to visit Achill Island in October 2026? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether October is a good month to travel to Achill Island, Ireland.

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Is it worth visiting Achill Island in October?

Check your ideal travel criteria and see if the month of October suits your plans to go to Achill Island.
What matters most?
Achill Island in October 2026: weather, temperatures and activities

Page summary

Achill Island in October in summary
Fair weather
Min 12°C Max 13°C 220 mm 13 day(s) 83% 61% 15°C 6.8 h/day
Possible activities in October
Beach and swimmingHiking and trekkingNature and landscapesBoat trip and cruise
Practical guidelines
Moderate crowds 07:08 17:43
Hourly weather

Average weather in Achill Island in October 2026

Fair weather

The weather in Achill Island in October 2026 is based on statistical data from previous years in October. This allows you to forecast the weather in October 2026. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Achill Island in October

Temperatures, precipitation and monthly trends help to better understand the climate in Achill Island in October.

Temperatures and rain in Achill Island in October

Average daily weather

Temperatures and rain day by day in October.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of October is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Achill Island in October

Seasonal normals

Seasonal normals of Achill Island in October

Check the seasonal normals in Achill Island in October and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
October
Weather data September October November
Outside temperature
Average temperature 14.1°C 12.4°C 10.3°C
Maximum temperature 14.9°C 13.1°C 11.0°C
Minimum temperature 13.3°C 11.6°C 9.5°C
Record maximum temperature 20.0°C
(2021)
17.0°C
(2010)
16.0°C
(2015)
Record low temperature 9.0°C
(2020)
7.0°C
(2019)
1.0°C
(2020)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 1 day(s)
(3%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Sea temperature
Sea temperature (average) 14.6°C 13.5°C 12.2°C
Sea temperature (minimum) 13.1°C 12.2°C 11.2°C
Sea temperature (maximum) 16.1°C 15.3°C 13.5°C
Wind
Wind speed 32 km/h 35 km/h 39 km/h
Wind temperature 11.4°C 9.0°C 6.1°C
Precipitation (rain)
Precipitation 166.3 mm 219.6 mm 218.1 mm
Number of days with precipitation 23 day(s)
(77%)
24 day(s)
(77%)
24 day(s)
(80%)
Number of days with significant precipitation (greater than 5 mm) 11 day(s)
(36%)
13 day(s)
(43%)
14 day(s)
(46%)
Record precipitation in one day 70.1 mm
(2015)
65.8 mm
(2020)
41.4 mm
(2020)
Other weather data
Humidity 85% 83% 81%
Visibility 8.9 km 8.9 km 9.0 km
Cloud cover 60% 61% 62%
UV index 4 3 3
Daily sunshine 9h 7h 6h
Sunrise and sunset
Sunrise time 06h13 07h08 08h08
Sunset time 18h56 17h43 16h41
Day length 12h43 10h35 8h33
Our opinion on the climate in October
The review of Where And When fair weather fair weather adverse weather
Activities and events

What to do in Achill Island in October?

Possible activities in October
Beach and swimmingHiking and trekkingNature and landscapesBoat trip and cruise
Activities not recommended in October
Animal observation
Observed weather

What was the weather like in Achill Island in October last?

Find the observed weather calendar in Achill Island in October 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Light rain
15°C15°C9.2 mm
2
Light rain
14°C15°C8.7 mm
3
Moderate rain
12°C16°C6.7 mm
4
Patchy rain nearby
10°C13°C7.8 mm
5
Patchy rain nearby
12°C13°C1.4 mm
6
Partly Cloudy
14°C14°C1.1 mm
7
Cloudy
12°C14°C0.6 mm
8
Patchy rain nearby
12°C13°C0.0 mm
9
Patchy rain nearby
12°C13°C0.0 mm
10
Cloudy
12°C13°C0.0 mm
11
Clear/Sunny
12°C13°C0.0 mm
12
Overcast
10°C14°C0.0 mm
13
Clear/Sunny
10°C16°C0.0 mm
14
Partly Cloudy
11°C14°C0.0 mm
15
Clear/Sunny
11°C15°C0.0 mm
16
Clear/Sunny
10°C12°C0.0 mm
17
Overcast
10°C14°C0.0 mm
18
Patchy rain nearby
12°C13°C1.6 mm
19
Patchy rain nearby
13°C14°C0.7 mm
20
Clear/Sunny
12°C13°C0.3 mm
21
Patchy rain nearby
11°C12°C0.7 mm
22
Light rain shower
9°C11°C1.6 mm
23
Patchy light drizzle
9°C10°C3.1 mm
24
Patchy rain nearby
11°C12°C3.3 mm
25
Patchy light drizzle
10°C11°C1.2 mm
26
Patchy rain nearby
11°C13°C1.1 mm
27
Patchy rain nearby
10°C13°C1.7 mm
28
Patchy rain nearby
11°C12°C1.2 mm
29
Patchy rain nearby
9°C10°C2.1 mm
30
Light rain
9°C14°C2.8 mm
31
Patchy rain nearby
11°C12°C1.5 mm
Nearby

Where to go near Achill Island in October?

Compare cities and destinations near Achill Island in October to find another travel stop, a nearby alternative or a logical continuation of your stay in Achill Island.

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Every month

Best time to visit Achill Island month by month

Compare the weather in Achill Island across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Achill Island in October: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

It's an average period, nothing special. Conditions are mediocre in Achill Island in October, which ranks this month 5th out of 12. The choice of region will make a real difference.

Expect an average of 13°C during the day and 12°C at night, with about 220 mm of precipitation spread over 13 rainy days.

The sea is only 14°C on average in October. Swimming is still possible, but it will be cool.

Expect about 6.8 hours of sunshine per day on average for this month.

No activity stands out as ideal this month, but conditions remain acceptable for Beach and swimming, Hiking and trekking, Nature and landscapes and Boat trip and cruise.

Visitor numbers are moderate: this month is in Moderate crowds, with an index of 48/100. It is often a good compromise between weather and tranquility.
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