easeweather.com
Units
°C
°F
Westport
Forecast Today Tomorrow
More destinations
Connacht IrelandUnited States
Search for a location
Search

Weather in Westport for September 2025

Your guide to Westport weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Westport at the beginning of September is 17.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.7 °C by the end of September.

  • Rain 🌧️

  • Westport in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 42 mm.

Average dry days
12
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/9°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Westport Weather September

Move between months or click on a day

Temperatures trend during September in Westport

See the weather trend as well as the moving average line

September weather in Westport day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
19° /9° 0.5 mm 4
2 Sept. Overcast
Overcast
14° /11° 0.7 mm 3
3 Sept. Patchy rain possible
Patchy rain possible
14° /11° 2.3 mm 3
4 Sept. Patchy rain possible
Patchy rain possible
13° /10° 0.8 mm 3
5 Sept. Sunny
Sunny
17° /9° 0 mm 5
6 Sept. Partly cloudy
Partly cloudy
22° /11° 0 mm 6
7 Sept. Partly cloudy
Partly cloudy
21° /12° 0 mm 6
8 Sept. Patchy rain possible
Patchy rain possible
15° /10° 0.6 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
14° /9° 2.6 mm 3
10 Sept. Patchy rain possible
Patchy rain possible
12° /9° 3.6 mm 3
11 Sept. Heavy rain at times
Heavy rain at times
12° /7° 1.6 mm 3
12 Sept. Patchy rain possible
Patchy rain possible
12° /6° 0.1 mm 3
13 Sept. Moderate rain at times
Moderate rain at times
13° /5° 4.1 mm 3
14 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
15° /13° 6.4 mm 4
15 Sept. Patchy rain possible
Patchy rain possible
16° /10° 0.8 mm 4
16 Sept. Patchy rain possible
Patchy rain possible
16° /9° 0.1 mm 4
17 Sept. Partly cloudy
Partly cloudy
19° /12° 0 mm 5
18 Sept. Sunny
Sunny
18° /9° 0 mm 5
19 Sept. Sunny
Sunny
19° /9° 0 mm 5
20 Sept. Sunny
Sunny
19° /10° 0 mm 5
21 Sept. Patchy rain possible
Patchy rain possible
18° /10° 0.2 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
17° /10° 1.5 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
15° /10° 0.7 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
13° /7° 0.4 mm 3
25 Sept. Overcast
Overcast
12° /5° 0 mm 3
26 Sept. Moderate rain at times
Moderate rain at times
10° /7° 2.5 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
10° /8° 0.9 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
12° /7° 0.1 mm 3
29 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
11° /7° 10.1 mm 3
30 Sept. Light rain shower
Light rain shower
14° /9° 1.4 mm 3
Next
Important Notice
Our weather forecast for Westport 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 Westport forecast closer to your planned date for the most up-to-date weather information.

Westport in September - FAQ

What are the expected maximum and minimum temperatures in Westport during September?
During September, expect a variety of temperatures with highs around 15° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Westport during September?
In September, Westport can expect light to moderate rainfall, totaling 42 mm across approximately 18 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Westport during September?
The average wind speed in Westport during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Westport

Explore the daily rainfall trends and prepare for Westports September weather 💧

UV exposure in Westport during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

More Westport weather pages
Location coordinates Where is Westport?

Get accurate weather forecasts for Westport, located at latitude 53.8 and longitude -9.517. Stay updated with localized weather information tailored for Westport.

Found a mistake?
We appreciate your attention to details. Tell us here.