Achill Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Achill Island, Ireland in September.

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Keel Achill Sound Doogort Bunacurry

Planning a getaway to Achill Island, Ireland this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Achill Island in September

Achill Island, Ireland is a region in Ireland. September in Achill Island generally has mild temperatures, with high precipitation.

Temperatures

You can expect mild maximum daytime temperatures of around 17°C (63°F) and nighttime temperatures around 12°C (54°F) in Keel.

To learn more about the conditions in specific areas of Achill Island, Ireland, check out the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Doogort with an average of 111 mm (4.4 in) to high rainfall in Dooagh with 118 mm (4.6 in).

Average sunshine

Sunshine levels are moderate in most locations. Keel typically sees 118 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Achill Island by month

Pick a month to see the average temperature, rainfall and sunshine in Achill Island — and find the best time to visit. (based on Keel)

January10°C (50°F) February10°C (50°F) March11°C (52°F) April12°C (54°F) May14°C (57°F) This monthJune16°C (61°F) July17°C (63°F) August18°C (64°F) September17°C (63°F) October14°C (57°F) November12°C (54°F) December11°C (52°F)
Best Time to Visit Achill Island →

Best Places to Visit in Achill Island in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Achill Island.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Achill Island

What is the weather like in September for some of the most popular destinations in Achill Island, Ireland?

Temperature range in Achill Island (September)

Precipitation variation in Achill Island (September)

Keel

In September Keel generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
13°C (55°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
142 hours
118 hours
90 hours
Monthly rainfall
116 mm (4.6 in)
116 mm (4.6 in)
144 mm (5.7 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Keel →

Achill Sound

In September Achill Sound generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
13°C (55°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
142 hours
118 hours
90 hours
Monthly rainfall
118 mm (4.6 in)
116 mm (4.6 in)
142 mm (5.6 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Achill Sound →

Doogort

In September Doogort generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
13°C (55°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
142 hours
118 hours
90 hours
Monthly rainfall
112 mm (4.4 in)
111 mm (4.4 in)
136 mm (5.4 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Doogort →

Bunacurry

In September Bunacurry generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
13°C (55°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
142 hours
118 hours
90 hours
Monthly rainfall
114 mm (4.5 in)
112 mm (4.4 in)
137 mm (5.4 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Bunacurry →

Dooagh

In September Dooagh generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
14°C (57°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
142 hours
118 hours
90 hours
Monthly rainfall
117 mm (4.6 in)
118 mm (4.6 in)
146 mm (5.7 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Dooagh →

Is your destination not in the list? Have a look at all destinations in Achill Island, in Ireland.

Popular cities in September

Day & night temperatures, rainfall and average weather in Achill Island in September.

City Weather Day temp Night temp Rainfall
Keel 17°C (63°F) 12°C (54°F) 116 mm (4.6 in)
Achill Sound 17°C (63°F) 12°C (54°F) 116 mm (4.6 in)
Doogort 17°C (63°F) 12°C (54°F) 111 mm (4.4 in)
Bunacurry 17°C (63°F) 12°C (54°F) 112 mm (4.4 in)
Dooagh 17°C (63°F) 12°C (54°F) 118 mm (4.6 in)

Achill Island weather in September: frequently asked questions

What is the weather like in Achill Island, Ireland in September?

Expect unpleasant weather across Achill Island, Ireland in September. The popular destination of Keel averages 17°C (63°F) by day and 12°C (54°F) at night during this month.

What is the average temperature in Achill Island, Ireland in September?

Daytime temperatures in Keel peak at roughly 17°C (63°F) in September, dropping to about 12°C (54°F) overnight.

Does Achill Island, Ireland get a lot of rain in September?

Yes, September tends to be a wetter month in Achill Island, Ireland. Average rainfall in Keel sits around 116 mm (4.6 in).

Is September a Good Time to Visit Achill Island, Ireland?

In our opinion, September may not be the ideal time to visit Achill Island, Ireland due to the typically unpleasant weather in Keel.

Generally speaking, the best visiting conditions can be found in May, June and August offering mostly tolerable weather in Keel. On the other hand, the months of January, February, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Achill Island.

Weather and climate has detailed information for every country in the world. Are you going to Ireland? Get detailed historical weather averages for many cities in Ireland.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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