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Weather in Portlaoise for September 2027

Your guide to Portlaoise weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Portlaoise at the beginning of September is 17.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.1 °C by the end of September.

    • Rain 🌧️

  • Portlaoise in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 93.8 mm.

    • More

  • Is September a good time to visit Portlaoise? check out the best time to travel to Portlaoise page.

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/8°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Portlaoise Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain shower
17°
2
Light rain
20°
3
Moderate rain
16°
4
Light rain shower
17°
5
Patchy rain possible
17°
6
Patchy rain possible
19°
7
Light rain
16°
8
Patchy rain possible
15°
9
Patchy rain possible
16°
10
Light rain
15°
11
Patchy rain possible
13°
12
Light rain
15°
13
Light rain
15°
14
Light rain
18°
15
Light rain
15°
16
Patchy rain possible
16°
17
Patchy rain possible
17°
18
Light rain
17°
19
Light rain
17°
20
Patchy rain possible
16°
21
Patchy rain possible
17°
22
Patchy rain possible
15°
23
Patchy rain possible
15°
24
Patchy rain possible
16°
25
Moderate or heavy rain shower
14°
26
Moderate or heavy rain shower
14°
27
Moderate rain
13°
28
Patchy rain possible
14°
29
Light rain
15°
30
Light rain
14°

Temperatures trend during September in Portlaoise

See the weather trend as well as the moving average line

September weather in Portlaoise day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 17° /10° 1.9 mm 3
2 Sept. Light rain
Light rain
 20° /10° 6.3 mm 3
3 Sept. Moderate rain
Moderate rain
 16° /12° 13.9 mm 2
4 Sept. Light rain shower
Light rain shower
 17° /10° 0.8 mm 3
5 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 0.4 mm 3
6 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 0.7 mm 3
7 Sept. Light rain
Light rain
 16° /9° 4.1 mm 3
8 Sept. Patchy rain possible
Patchy rain possible
 15° /7° 0.4 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 16° /8° 1.5 mm 4
10 Sept. Light rain
Light rain
 15° /10° 2.7 mm 3
11 Sept. Patchy rain possible
Patchy rain possible
 13° /9° 1.9 mm 3
12 Sept. Light rain
Light rain
 15° /7° 2.7 mm 2
13 Sept. Light rain
Light rain
 15° /7° 3.6 mm 2
14 Sept. Light rain
Light rain
 18° /10° 3.1 mm 3
15 Sept. Light rain
Light rain
 15° /10° 3.7 mm 3
16 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 1.7 mm 3
17 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 2 mm 3
18 Sept. Light rain
Light rain
 17° /9° 4 mm 3
19 Sept. Light rain
Light rain
 17° /10° 4.1 mm 3.8
20 Sept. Patchy rain possible
Patchy rain possible
 16° /8° 1.7 mm 3
21 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 1.7 mm 3
22 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 0.5 mm 2
23 Sept. Patchy rain possible
Patchy rain possible
 15° /7° 0.6 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 16° /7° 0.4 mm 3
25 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /7° 5.3 mm 3
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /7° 5.6 mm 3
27 Sept. Moderate rain
Moderate rain
 13° /6° 10.3 mm 2
28 Sept. Patchy rain possible
Patchy rain possible
 14° /5° 0.4 mm 3
29 Sept. Light rain
Light rain
 15° /8° 3.7 mm 2
30 Sept. Light rain
Light rain
 14° /8° 4.3 mm 2.9
Next
Important Notice
Our weather forecast for Portlaoise 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 Portlaoise forecast closer to your planned date for the most up-to-date weather information.
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Portlaoise in September - FAQ

What are the expected maximum and minimum temperatures in Portlaoise during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Portlaoise during September?
Moderate rainfall is anticipated in Portlaoise during September, with a total of 93.8 mm spread over approximately 16 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Portlaoise during September?
The average wind speed in Portlaoise during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Portlaoise

Explore the daily rainfall trends and prepare for Portlaoises September weather 💧
Typically, Portlaoise has 16 rainy days in September with a total of 93.8 mm of rainfall.
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Location coordinates Where is Portlaoise?

Get accurate weather forecasts for Portlaoise, located at latitude 53.034 and longitude -7.3. Stay updated with localized weather information tailored for Portlaoise.

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