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County Waterford (Waterford)
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Ireland weather

Weather in County Waterford for September 2025

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

    Temperatures

  • Until now, September 2025 in County Waterford has been nearly identical to the historical average, with a temperature of 16.5 °C (showing only a slight deviation of -0.2 °C).

  • Expect cooler weather in the next days in County Waterford with the forecast suggesting a temperature of 14.4 °C, lower than the historical average.

  • In general, the average temperature in County Waterford at the beginning of September is 17.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.6 °C by the end of September.

    • Rain 🌧️

  • The climate of County Waterford in September is notably wet, with an average of 11 rainy days, and a total of 89.9 mm of precipitation.

Average dry days
19
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
81 %
Avg humidity

County Waterford Weather September

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

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° 1.6 mm 4
2 Sept. Heavy rain at times
Heavy rain at times
 17° /10° 2.5 mm 4
3 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 5.2 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 1.7 mm 4
5 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 1 mm 4
6 Sept. Patchy rain possible
Patchy rain possible
 20° /13° 0.9 mm 5
7 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 4.1 mm 5
8 Sept. Overcast
Overcast
 18° /9° 1 mm 4
9 Sept. Overcast
Overcast
 17° /10° 3.2 mm 4
10 Sept. Moderate rain at times
Moderate rain at times
 15° /10° 2.7 mm 4
11 Sept. Patchy rain possible
Patchy rain possible
 14° /8° 0.9 mm 3
12 Sept. Patchy rain possible
Patchy rain possible
 14° /6° 4.4 mm 4
13 Sept. Overcast
Overcast
 14° /5° 0.7 mm 4
14 Sept. Cloudy
Cloudy
 17° /10° 4.7 mm 4
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /11° 7.2 mm 4
16 Sept. Moderate rain
Moderate rain
 16° /9° 8.6 mm 0.7
17 Sept. Moderate rain
Moderate rain
 18° /13° 9.9 mm 0.8
18 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 2.8 mm 0.3
19 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 4.2 mm 0.2
20 Sept. Moderate rain
Moderate rain
 12° /9° 6.5 mm 0.6
21 Sept. Patchy rain possible
Patchy rain possible
 12° /7° 1.6 mm 2
22 Sept. Patchy rain possible
Patchy rain possible
 13° /5° 0.1 mm 2
23 Sept. Patchy rain possible
Patchy rain possible
 11° /3° 0 mm 2
24 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 0 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 0.5 mm 3
26 Sept. Moderate rain
Moderate rain
 13° /10° 7.5 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 1.4 mm 3
28 Sept. Partly cloudy
Partly cloudy
 15° /8° 0 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 16° /7° 0 mm 3
30 Sept. Light drizzle
Light drizzle
 14° /7° 1.6 mm 3
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 89.9 mm spread over approximately 11 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 22 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 💧
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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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