Galway in september: average Weather, Temperature and Climate
Weather in Galway in september 2025
The weather in Galway in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather
Weather at 6am
54°F
Cloudy
23% of time
21%
19%
17%
Weather at 12pm
61°F
Moderate rain at times
34% of time
28%
19%
12%
Weather at 6pm
58°F
Moderate rain at times
28% of time
24%
24%
17%
Weather at 3am
54°F
23%
21%
18%
18%
Evolution of daily average temperature and precipitation in Galway in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Galway in september.
The climate of Galway in september is tolerable
In september in Galway, the climate is wet (with 4.2in of rainfall over 6 days). It should be noted an improvement from the previous month since in august it receives an average of 5.2in of rainfall over 8 days.
The climate is quite cool here the month of september, but it is tolerable when dressing warm. Temperatures are up to 63°F. On average, the recorded minimum temperature is 52°F. Thus, the mean temperature average in september in Galway is 58°F. These temperatures are far removed from those records observed in Galway in the month of september with a maximum record of 77°F in 2021 and a minimum record of 38°F in 2010. You can hope to have about 7 days with temperatures over 65°F, or 23% of the month.
Day length in Galway in september is 12:41. The sun rises at 06:10 and sets at 18:51.
With a correct climate, september is okay (but not good) to go in that area in Ireland.
September: another location in Ireland?
If you want to go to Ireland in september, there are destinations with better weather than Galway:
In september, Dublin, Cork, Ardmore, Dalkey Island, Rosslare and Tramore have good weather.
Seasonal average climate and temperature of Galway in september
Check below seasonal norms These statistics are generated from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 58°F | ||||
| Highest temperature | 63°F | ||||
| Lowest temperature | 52°F | ||||
| Highest record temperature | 77°F (2021) | ||||
| Lowest record temperature | 38°F (2010) | ||||
| Number of days at +65°F | 7 day(s) (23%) | ||||
| Sea temperature | |||||
| Average sea temperature | 59°F | ||||
| Lowest sea temperature | 57°F | ||||
| Highest sea temperature | 61°F | ||||
| Wind | |||||
| Wind speed | 22km/h | ||||
| Wind temperature | 50°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.2in | ||||
| Number of days with rainfall | 6 day(s) (20%) | ||||
| Record daily rainfall | 2.8in (2015) | ||||
| Other climate data | |||||
| Humidity | 93% | ||||
| Visibility | 8.35km | ||||
| Cloud cover | 61% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:10 | ||||
| Time of sunset | 18:51 | ||||
| Length of day | 12:41 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Galway in september 2024:
50°F to 68°F
54°F to 59°F
56°F to 63°F
54°F to 59°F
45°F to 65°F
56°F to 76°F
56°F to 72°F
56°F to 67°F
50°F to 61°F
54°F to 58°F
50°F to 56°F
43°F to 56°F
38°F to 54°F
50°F to 67°F
56°F to 65°F
47°F to 67°F
49°F to 72°F
47°F to 70°F
49°F to 70°F
49°F to 70°F
49°F to 68°F
52°F to 59°F
52°F to 67°F
52°F to 58°F
47°F to 58°F
45°F to 50°F
47°F to 54°F
45°F to 58°F
50°F to 54°F
52°F to 59°F
Map: other cities in Ireland in september
Cities near Galway:
| Oughterard in september | tolerable weather |
| Burren National Park in september | tolerable weather |
| Tuam in september | tolerable weather |
| Cliffs of Moher in september | tolerable weather |
| Ballinrobe in september | tolerable weather |
| Aran Islands in september | tolerable weather |
| Ennis in september | tolerable weather |
| Connemara National Park in september | tolerable weather |
| Shannon in september | tolerable weather |
| Westport in september | tolerable weather |
| Castlebar in september | tolerable weather |
| Roscommon in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Galway
perfect weather
good
tolerable
bad
very bad
Weather data for Galway in september:
Weather data for Galway for september are derived from an average of the weather forecast since 2009 in Galway. There is a margin of error and these forecasts are to be considered as general information only. The weather in Galway can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Galway.