Laois (Portlaoise)
September
Weather in Laois for September 2026
Your guide to Laois weather in September - trends and predictions
In general, the average temperature in Laois at the beginning of September is 16.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 13.6 °C by the end of September.
Laois in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 82.6 mm.
Temperatures
Rain 🌧️
13
Dry days
17
Rainy days
0
Snow days
15°/8°
Temperatures
19 km/h
Avg max wind
83 %
Avg humidity
Laois Weather September
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Temperatures trend during September in Laois
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September weather in Laois day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 15° /9° | 3.2 mm | 4 | |
| 2 Sept. | Patchy rain possible | 18° /7° | 0 mm | 4 | |
| 3 Sept. |  Moderate rain | 14° /10° | 23.2 mm | 3 | |
| 4 Sept. | Light rain shower | 17° /8° | 1.1 mm | 4 | |
| 5 Sept. | Patchy rain possible | 17° /8° | 0 mm | 4 | |
| 6 Sept. | Patchy rain possible | 18° /10° | 0.2 mm | 4 | |
| 7 Sept. | Light rain shower | 15° /7° | 2.2 mm | 4 | |
| 8 Sept. | Patchy rain possible | 16° /6° | 0.2 mm | 4 | |
| 9 Sept. |  Overcast | 16° /9° | 2.2 mm | 4 | |
| 10 Sept. |  Moderate rain at times | 14° /9° | 2.8 mm | 4 | |
| 11 Sept. | Moderate rain at times | 12° /7° | 2.8 mm | 3 | |
| 12 Sept. | Patchy rain possible | 13° /5° | 1.7 mm | 3 | |
| 13 Sept. | Overcast | 12° /4° | 5.3 mm | 3 | |
| 14 Sept. | Moderate rain at times | 17° /8° | 3.3 mm | 4 | |
| 15 Sept. | Patchy rain possible | 15° /9° | 3.2 mm | 4 | |
| 16 Sept. |  Cloudy | 17° /8° | 1.8 mm | 4 | |
| 17 Sept. |  Sunny | 19° /9° | 2.2 mm | 5 | |
| 18 Sept. | Sunny | 18° /8° | 2.3 mm | 5 | |
| 19 Sept. | Sunny | 18° /9° | 5.6 mm | 5 | |
| 20 Sept. | Overcast | 17° /8° | 2.6 mm | 4 | |
| 21 Sept. | Cloudy | 15° /6° | 2.1 mm | 4 | |
| 22 Sept. | Patchy rain possible | 13° /7° | 0.6 mm | 3 | |
| 23 Sept. | Patchy rain possible | 15° /6° | 0.1 mm | 4 | |
| 24 Sept. | Patchy rain possible | 15° /6° | 0.2 mm | 4 | |
| 25 Sept. | Moderate or heavy rain shower | 13° /5° | 6.5 mm | 4 | |
| 26 Sept. | Moderate or heavy rain shower | 13° /6° | 8.1 mm | 4 | |
| 27 Sept. | Patchy rain possible | 13° /5° | 5.2 mm | 3 | |
| 28 Sept. | Patchy rain possible | 14° /4° | 0.7 mm | 4 | |
| 29 Sept. | Moderate or heavy rain shower | 14° /7° | 3.4 mm | 4 | |
| 30 Sept. | Light rain shower | 13° /7° | 3.5 mm | 4 | |
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Important Notice
Our weather forecast for Laois 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 Laois forecast closer to your planned date for the most up-to-date weather information.
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Laois in September - FAQ
What are the expected maximum and minimum temperatures in Laois during September?
During September, expect a variety of temperatures with highs around 15° and lows near 8°, suitable for diverse activities and preferences.
How much rainfall should be expected in Laois during September?
Moderate rainfall is anticipated in Laois during September, with a total of 82.6 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Laois during September?
The average wind speed in Laois during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Laois
Explore the daily rainfall trends and prepare for Laoiss September weather 💧
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