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Weather in September in Galway County

Planning a getaway to Galway County 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 is the weather like in Galway County in September?

Galway County 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 and nighttime temperatures around 10°C in Galway.

Precipitation

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

Average sunshine

Most cities witness limited sunny days, expect roughly 93 hours of sunlight in Galway. This low amount of sunlight is perfect for those who lean towards dimmer, cloudier weather rather than intense sunny days.

For specific regional insights in Galway County for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Galway County climate page.

Where to go in Galway County in September

Find more information for the most popular destinations in the Galway County on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Galway County?

Galway

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

Galway
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
12°C 
118 hours 
100 mm 
20 days 
18°C 
10°C 
93 hours 
86 mm 
20 days 
October   >> October
>>  
15°C 
8°C 
74 hours 
104 mm 
21 days 
Climate in Galway

Clifden

In September Clifden generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 11°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Clifden
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
13°C 
118 hours 
121 mm 
21 days 
17°C 
11°C 
93 hours 
117 mm 
21 days 
October   >> October
>>  
14°C 
9°C 
74 hours 
144 mm 
24 days 
Climate in Clifden

Cong

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

Cong
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
11°C 
118 hours 
110 mm 
20 days 
18°C 
10°C 
93 hours 
95 mm 
20 days 
October   >> October
>>  
14°C 
7°C 
74 hours 
115 mm 
22 days 
Climate in Cong

Oughterard

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

Oughterard
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
12°C 
118 hours 
112 mm 
20 days 
18°C 
10°C 
93 hours 
97 mm 
20 days 
October   >> October
>>  
14°C 
8°C 
74 hours 
117 mm 
22 days 
Climate in Oughterard

Renvyle

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

Renvyle
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
13°C 
118 hours 
126 mm 
21 days 
17°C 
12°C 
93 hours 
123 mm 
21 days 
October   >> October
>>  
14°C 
9°C 
74 hours 
152 mm 
24 days 
Climate in Renvyle

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

Is September the best time to visit Galway County?

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

On average, the best time to visit Galway County 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. Interested in the weather conditions in a specific month? Select the month below.

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  • 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.