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County Waterford (Waterford)
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Ireland weather

Weather in County Waterford for September 2026

Your guide to County Waterford weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in County Waterford has been nearly identical to the historical average, with a temperature of 17.8 °C (showing only a slight deviation of 0 °C).

  • The forecast for the next days in County Waterford predicts temperatures to be around 18 °C, close to the historical average.

  • In general, the average temperature in County Waterford at the beginning of September is 18.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 15.4 °C by the end of September.

    • Rain 🌧️

  • County Waterford experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 97.9 mm.

Average dry days
7
Dry days
Average rainy days
23
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
81 %
Avg humidity

County Waterford Weather September

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

Temperatures trend during September in County Waterford

See the weather trend as well as the moving average line

September weather in County Waterford day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 18° /10° 1 mm 3
2 Sept. Patchy rain possible
Patchy rain possible
 18° /11° 3.1 mm 3
3 Sept. Patchy rain possible
Patchy rain possible
 18° /10° 5.9 mm 3
4 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 1.2 mm 3
5 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 0.7 mm 3
6 Sept. Patchy rain possible
Patchy rain possible
 20° /13° 1.2 mm 3
7 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 3 mm 3
8 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 0.8 mm 4
9 Sept. Overcast
Overcast
 17° /9° 2.1 mm 4
10 Sept. Moderate rain at times
Moderate rain at times
 17° /10° 2.7 mm 3
11 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 0.6 mm 3
12 Sept. Overcast
Overcast
 18° /14° 3.8 mm 1.1
13 Sept. Mist
Mist
 20° /14° 0 mm 4
14 Sept. Patchy rain possible
Patchy rain possible
 18° /17° 3.6 mm 3
15 Sept. Sunny
Sunny
 18° /12° 0.2 mm 5
16 Sept. Sunny
Sunny
 17° /9° 0 mm 5
17 Sept. Overcast
Overcast
 17° /11° 0.1 mm 5
18 Sept. Overcast
Overcast
 17° /10° 0 mm 5
19 Sept. Overcast
Overcast
 19° /10° 0 mm 5
20 Sept. Sunny
Sunny
 16° /9° 0 mm 5
21 Sept. Sunny
Sunny
 16° /7° 0 mm 4
22 Sept. Overcast
Overcast
 16° /10° 0 mm 4
23 Sept. Overcast
Overcast
 16° /13° 0.1 mm 4
24 Sept. Sunny
Sunny
 18° /13° 0 mm 5
25 Sept. Sunny
Sunny
 19° /12° 0.5 mm 5
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /8° 6.1 mm 4
27 Sept. Overcast
Overcast
 14° /6° 2.4 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 15° /5° 0.3 mm 4
29 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /9° 16.4 mm 4
30 Sept. Light drizzle
Light drizzle
 15° /9° 2.7 mm 4
Next
Important Notice
Our weather forecast for County Waterford 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 Waterford forecast closer to your planned date for the most up-to-date weather information.
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County Waterford in September - FAQ

What are the expected maximum and minimum temperatures in County Waterford during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in County Waterford during September?
Moderate rainfall is anticipated in County Waterford during September, with a total of 97.9 mm spread over approximately 23 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in County Waterford during September?
The average wind speed in County Waterford during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in County Waterford

Explore the daily rainfall trends and prepare for County Waterfords September weather 💧
Typically, County Waterford has 23 rainy days in September with a total of 97.9 mm of rainfall.
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Location coordinates Where is County Waterford?

Get accurate weather forecasts for County Waterford, located at latitude 52.258 and longitude -7.112. Stay updated with localized weather information tailored for County Waterford.

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