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Weather in Mayo County for September 2026

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

    Temperatures

  • Until now, September 2026 in Mayo County has been nearly identical to the historical average, with a temperature of 15.9 °C (showing only a slight deviation of 0.3 °C).

  • The forecast for the next days in Mayo County predicts temperatures to be around 17 °C, close to the historical average.

  • In general, the average temperature in Mayo County at the beginning of September is 16.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 15.7 °C by the end of September.

    • Rain 🌧️

  • Mayo County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 95.3 mm.

Average dry days
9
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/9°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Mayo County Weather September

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

Temperatures trend during September in Mayo County

See the weather trend as well as the moving average line

September weather in Mayo County 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
 17° /10° 2.8 mm 3
2 Sept. Patchy rain possible
Patchy rain possible
 16° /10° 2.3 mm 3
3 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 7.1 mm 3
4 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 0.7 mm 3
5 Sept. Patchy rain possible
Patchy rain possible
 16° /10° 0.3 mm 3
6 Sept. Partly cloudy
Partly cloudy
 19° /11° 2.2 mm 4
7 Sept. Partly cloudy
Partly cloudy
 17° /10° 2.1 mm 4
8 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 2.3 mm 3
9 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 2 mm 3
10 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 7.7 mm 2
11 Sept. Heavy rain at times
Heavy rain at times
 14° /9° 6 mm 2
12 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 9.4 mm 2
13 Sept. Moderate rain at times
Moderate rain at times
 15° /8° 5.5 mm 2
14 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /11° 8.8 mm 3
15 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 7.2 mm 4
16 Sept. Patchy rain possible
Patchy rain possible
 15° /12° 4.6 mm 2.4
17 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 2.2 mm 3
18 Sept. Patchy rain possible
Patchy rain possible
 15° /12° 5 mm 0.4
19 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 1.1 mm 2.7
20 Sept. Patchy rain possible
Patchy rain possible
 19° /10° 0.2 mm 5
21 Sept. Mist
Mist
 20° /14° 0 mm 6
22 Sept. Sunny
Sunny
 20° /13° 0 mm 5
23 Sept. Sunny
Sunny
 19° /12° 0 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 0.1 mm 3
25 Sept. Sunny
Sunny
 18° /8° 0 mm 5
26 Sept. Sunny
Sunny
 18° /11° 0 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 16° /11° 0.1 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 14° /12° 1.1 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 3.3 mm 3
30 Sept. Light rain shower
Light rain shower
 15° /9° 5.3 mm 4
Next
Important Notice
Our weather forecast for Mayo County 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 Mayo County forecast closer to your planned date for the most up-to-date weather information.
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Mayo County in September - FAQ

What are the expected maximum and minimum temperatures in Mayo County 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 Mayo County during September?
Moderate rainfall is anticipated in Mayo County during September, with a total of 95.3 mm spread over approximately 21 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Mayo County during September?
The average wind speed in Mayo County during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Mayo County

Explore the daily rainfall trends and prepare for Mayo Countys September weather 💧
Typically, Mayo County has 21 rainy days in September with a total of 95.3 mm of rainfall.
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Westport
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Location coordinates Where is Mayo County?

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

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