Clifden

Galway County Weather in September

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

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Galway Clifden Cong Oughterard

Planning a journey to Galway County, Ireland this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Galway County in September

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

Temperatures

You can expect mild maximum daytime temperatures of around 18°C (64°F) and nighttime temperatures around 10°C (50°F) in Galway.

For specific regional insights in Galway County, Ireland, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Ballinasloe with an average of 78 mm (3.1 in) to high rainfall in Carna with 135 mm (5.3 in).

Average sunshine

Sunshine tends to be more scarce in many locations. Galway gets roughly 93 hours of sunlight. For sunnier alternatives, check our weather planner to find destinations with better conditions.

Explore Galway County by month

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

Best Places to Visit in Galway County in September

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

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 Galway County

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

Temperature range in Galway County (September)

Precipitation variation in Galway County (September)

Galway

In September Galway 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)
15°C (59°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
100 mm (3.9 in)
86 mm (3.4 in)
104 mm (4.1 in)
Monthly rainy days
20 days
20 days
21 days
Weather conditions
tolerable
pleasant
unpleasant
Climate in Galway →

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 →

Cong

In September Cong 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
11°C (52°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
118 hours
93 hours
74 hours
Monthly rainfall
110 mm (4.3 in)
95 mm (3.7 in)
115 mm (4.5 in)
Monthly rainy days
20 days
20 days
22 days
Weather conditions
tolerable
pleasant
unpleasant
Climate in Cong →

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 →

Renvyle

In September Renvyle 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)
9°C (48°F)
Monthly sun hours
118 hours
93 hours
74 hours
Monthly rainfall
126 mm (5 in)
123 mm (4.8 in)
152 mm (6 in)
Monthly rainy days
21 days
21 days
24 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Renvyle →

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Galway 18°C (64°F) 10°C (50°F) 86 mm (3.4 in)
Clifden 17°C (63°F) 11°C (52°F) 117 mm (4.6 in)
Cong 18°C (64°F) 10°C (50°F) 95 mm (3.7 in)
Oughterard 18°C (64°F) 10°C (50°F) 97 mm (3.8 in)
Renvyle 17°C (63°F) 12°C (54°F) 123 mm (4.8 in)
Roundstone 17°C (63°F) 12°C (54°F) 128 mm (5 in)

Galway County weather in September: frequently asked questions

What is the weather like in Galway County, Ireland in September?

September in Galway County, Ireland brings pleasant weather. In Galway, daytime temperatures are typically around 18°C (64°F) and nighttime lows hover near 10°C (50°F).

What is the average temperature in Galway County, Ireland in September?

Average temperatures in Galway County, Ireland during September range from a nighttime low near 10°C (50°F) to a daytime high around 18°C (64°F) in Galway.

Does Galway County, Ireland get a lot of rain in September?

Not particularly. Galway averages just 86 mm (3.4 in) of rain in September, making it a mostly dry month for Galway County, Ireland.

Is September a Good Time to Visit Galway County, Ireland?

Given the typically pleasant weather conditions in Galway, September might be a good time to visit Galway County, Ireland. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Galway County, Ireland is in July with generally perfect weather in Galway. In contrast, January, February, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Galway County.

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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