County Galway (Galway)
September
Weather in County Galway for September 2027
Your guide to County Galway weather in September - trends and predictions
In general, the average temperature in County Galway at the beginning of September is 17.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 14.8 °C by the end of September.
County Galway in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 106.2 mm.
Is September a good time to visit County Galway? check out the best time to travel to County Galway page.
Temperatures
Rain 🌧️
More
13
Dry days
17
Rainy days
0
Snow days
16°/11°
Temperatures
28 km/h
Avg max wind
82 %
Avg humidity
County Galway Weather September
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Temperatures trend during September in County Galway
See the weather trend as well as the moving average line
September weather in County Galway day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 17° /13° | 2.9 mm | 3 | |
| 2 Sept. | Light rain | 16° /12° | 2.8 mm | 3 | |
| 3 Sept. | Light rain | 16° /12° | 9.4 mm | 4 | |
| 4 Sept. |  Patchy rain possible | 17° /12° | 0.8 mm | 4 | |
| 5 Sept. | Patchy rain possible | 18° /12° | 0.5 mm | 4 | |
| 6 Sept. | Patchy rain possible | 20° /14° | 1.7 mm | 4 | |
| 7 Sept. | Light rain | 19° /13° | 3.8 mm | 4 | |
| 8 Sept. | Patchy rain possible | 17° /12° | 1.2 mm | 4 | |
| 9 Sept. | Patchy rain possible | 16° /12° | 1.1 mm | 3 | |
| 10 Sept. | Light rain | 16° /12° | 4.9 mm | 3 | |
| 11 Sept. | Light rain | 15° /10° | 4.3 mm | 3 | |
| 12 Sept. | Light rain | 15° /10° | 6 mm | 3 | |
| 13 Sept. | Light rain | 15° /10° | 2.7 mm | 3 | |
| 14 Sept. | Light rain | 17° /11° | 4.2 mm | 3 | |
| 15 Sept. | Light rain | 15° /11° | 3.5 mm | 3 | |
| 16 Sept. | Patchy rain possible | 16° /10° | 2.2 mm | 3 | |
| 17 Sept. | Light rain | 16° /12° | 2.6 mm | 3.9 | |
| 18 Sept. | Light rain | 16° /11° | 7.8 mm | 3 | |
| 19 Sept. | Light rain | 17° /11° | 5.8 mm | 3.7 | |
| 20 Sept. | Light rain | 16° /11° | 2.7 mm | 3 | |
| 21 Sept. | Patchy rain possible | 16° /10° | 1.8 mm | 3 | |
| 22 Sept. | Patchy rain possible | 14° /10° | 1.6 mm | 3 | |
| 23 Sept. | Patchy rain possible | 16° /9° | 0.5 mm | 3 | |
| 24 Sept. |  Moderate rain | 16° /10° | 6.3 mm | 3 | |
| 25 Sept. | Patchy rain possible | 15° /10° | 1.5 mm | 3 | |
| 26 Sept. | Light rain | 14° /9° | 6.9 mm | 3 | |
| 27 Sept. | Light rain | 14° /10° | 5.4 mm | 3 | |
| 28 Sept. | Light rain | 15° /10° | 4 mm | 3 | |
| 29 Sept. | Light rain | 15° /11° | 2.7 mm | 2.9 | |
| 30 Sept. | Light rain | 16° /11° | 4.7 mm | 2.9 | |
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Important Notice
Our weather forecast for County Galway in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the County Galway forecast closer to your planned date for the most up-to-date weather information.
Change Month
County Galway in September - FAQ
What are the expected maximum and minimum temperatures in County Galway during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in County Galway during September?
Significant rainfall exceeding 106.2 mm is expected in County Galway during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in County Galway during September?
The average wind speed in County Galway during September is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in County Galway
Explore the daily rainfall trends and prepare for County Galways September weather 💧
Typically, County Galway has 17 rainy days in September with a total of 106.2 mm of rainfall.
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