Connacht (Galway)
September
Weather in Connacht for September 2027
Your guide to Connacht weather in September - trends and predictions
In general, the average temperature in Connacht 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.
Connacht 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 Connacht? check out the best time to travel to Connacht page.
Temperatures
Rain 🌧️
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13
Dry days
17
Rainy days
0
Snow days
16°/11°
Temperatures
28 km/h
Avg max wind
82 %
Avg humidity
Connacht Weather September
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What’s the Weather Like in Connacht This September?
Discover the average temperatures and weather trends across Connacht’s cities this September.
Temperatures trend during September in Connacht
See the weather trend as well as the moving average line
September weather in Connacht 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 Connacht 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 Connacht forecast closer to your planned date for the most up-to-date weather information.
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Connacht in September - FAQ
What are the expected maximum and minimum temperatures in Connacht 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 Connacht during September?
Significant rainfall exceeding 106.2 mm is expected in Connacht during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Connacht during September?
The average wind speed in Connacht during September is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Connacht
Explore the daily rainfall trends and prepare for Connachts September weather 💧
Typically, Connacht has 17 rainy days in September with a total of 106.2 mm of rainfall.
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