Clifden

Connemara Weather in September

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

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Clifden Oughterard Roundstone Cleggan

Planning a trip to Connemara, Ireland this September? Here's what you need to know about the weather:

What to Expect in Connemara in September

Connemara, Ireland is a region in Ireland. September in Connemara generally has mild temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect mild maximum daytime temperatures of around 17°C (63°F) and nighttime temperatures around 11°C (52°F) in Clifden.

For a closer look at conditions across Connemara, Ireland, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Spiddal with an average of 96 mm (3.8 in) to high rainfall in Carna with 135 mm (5.3 in).

Average sunshine

Sunshine is more restricted in many locations in September. Clifden sees roughly 93 hours of sunlight. Our weather planner can help you find destinations with more sunshine if needed.

Explore Connemara by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Connemara in September

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

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 Connemara

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

Temperature range in Connemara (September)

Precipitation variation in Connemara (September)

Clifden

In September Clifden generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 11°C (52°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)
11°C (52°F)
9°C (48°F)
Monthly sun hours
118 hours
93 hours
74 hours
Monthly rainfall
121 mm (4.8 in)
117 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 Clifden →

Oughterard

In September Oughterard generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
18°C (64°F)
14°C (57°F)
Min temperature
12°C (54°F)
10°C (50°F)
8°C (46°F)
Monthly sun hours
118 hours
93 hours
74 hours
Monthly rainfall
112 mm (4.4 in)
97 mm (3.8 in)
117 mm (4.6 in)
Monthly rainy days
20 days
20 days
22 days
Weather conditions
tolerable
pleasant
unpleasant
Climate in Oughterard →

Roundstone

In September Roundstone 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
118 hours
93 hours
74 hours
Monthly rainfall
132 mm (5.2 in)
128 mm (5 in)
156 mm (6.1 in)
Monthly rainy days
21 days
21 days
23 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Roundstone →

Cleggan

In September Cleggan 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 rainfall
125 mm (4.9 in)
124 mm (4.9 in)
153 mm (6 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Cleggan →

Ballyconneely

In September Ballyconneely 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 rainfall
129 mm (5.1 in)
127 mm (5 in)
156 mm (6.1 in)
Monthly rainy days
21 days
21 days
23 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Ballyconneely →

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Clifden 17°C (63°F) 11°C (52°F) 117 mm (4.6 in)
Oughterard 18°C (64°F) 10°C (50°F) 97 mm (3.8 in)
Roundstone 17°C (63°F) 12°C (54°F) 128 mm (5 in)
Cleggan 17°C (63°F) 12°C (54°F) 124 mm (4.9 in)
Ballyconneely 17°C (63°F) 12°C (54°F) 127 mm (5 in)
Letterfrack 17°C (63°F) 11°C (52°F) 118 mm (4.6 in)

Connemara weather in September: frequently asked questions

What is the weather like in Connemara, Ireland in September?

Expect unpleasant weather across Connemara, Ireland in September. The popular destination of Clifden averages 17°C (63°F) by day and 11°C (52°F) at night during this month.

What is the average temperature in Connemara, Ireland in September?

Daytime temperatures in Clifden peak at roughly 17°C (63°F) in September, dropping to about 11°C (52°F) overnight.

Does Connemara, Ireland get a lot of rain in September?

Connemara, Ireland sees substantial rainfall in September. Clifden typically averages about 117 mm (4.6 in), a mix of wet and dry days, but bring an umbrella.

Is September a Good Time to Visit Connemara, Ireland?

Given the typically unpleasant weather conditions in Clifden, September may not be the ideal time to visit Connemara, Ireland.

Generally speaking, May, June, July and August provide tolerable weather in Clifden. On the other hand, the weather in January, February, March, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Connemara.

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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