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Weather in Sligo for September 2025

Your guide to Sligo weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Sligo has been nearly identical to the historical average, with a temperature of 14.7 °C (showing only a slight deviation of -0.5 °C).

  • The forecast for the next days in Sligo predicts temperatures to be around 14 °C, close to the historical average.

  • In general, the average temperature in Sligo at the beginning of September is 16.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.3 °C by the end of September.

    • Rain 🌧️

  • The climate of Sligo in September is notably wet, with an average of 15 rainy days, and a total of 53.2 mm of precipitation.

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

Sligo Weather September

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

Temperatures trend during September in Sligo

See the weather trend as well as the moving average line

September weather in Sligo 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° /9° 6.4 mm 4
2 Sept. Light rain shower
Light rain shower
 16° /9° 3.9 mm 4
3 Sept. Light rain shower
Light rain shower
 14° /8° 4 mm 3
4 Sept. Light rain shower
Light rain shower
 15° /8° 3 mm 4
5 Sept. Cloudy
Cloudy
 17° /8° 0.1 mm 4
6 Sept. Sunny
Sunny
 21° /10° 0.9 mm 5
7 Sept. Partly cloudy
Partly cloudy
 18° /10° 2.4 mm 5
8 Sept. Patchy rain possible
Patchy rain possible
 15° /8° 1.1 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 1.2 mm 3
10 Sept. Light rain shower
Light rain shower
 13° /8° 9.9 mm 3
11 Sept. Light rain shower
Light rain shower
 12° /8° 9 mm 3
12 Sept. Light rain shower
Light rain shower
 12° /6° 6.8 mm 3
13 Sept. Light rain
Light rain
 13° /5° 8 mm 3
14 Sept. Light drizzle
Light drizzle
 16° /9° 6.8 mm 4
15 Sept. Moderate rain
Moderate rain
 14° /12° 13.7 mm 0.3
16 Sept. Moderate rain
Moderate rain
 15° /9° 8.1 mm 0.8
17 Sept. Moderate rain
Moderate rain
 17° /11° 7.8 mm 0.8
18 Sept. Moderate rain
Moderate rain
 17° /11° 14.5 mm 0.6
19 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 2.1 mm 0.6
20 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 0.7 mm 3
21 Sept. Moderate rain
Moderate rain
 10° /7° 5.2 mm 2
22 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 0.2 mm 3
23 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 0.3 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 13° /10° 2.7 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 0.1 mm 3
26 Sept. Patchy rain possible
Patchy rain possible
 14° /7° 1.4 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 4 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
 13° /9° 3.3 mm 3
29 Sept. Light rain shower
Light rain shower
 12° /7° 3.7 mm 3
30 Sept. Light drizzle
Light drizzle
 12° /8° 2.4 mm 3
Next
Important Notice
Our weather forecast for Sligo 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 Sligo forecast closer to your planned date for the most up-to-date weather information.
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Sligo in September - FAQ

What are the expected maximum and minimum temperatures in Sligo 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 Sligo during September?
Moderate rainfall is anticipated in Sligo during September, with a total of 53.2 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sligo during September?
The average wind speed in Sligo during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Sligo

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

UV exposure in Sligo during September

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

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Location coordinates Where is Sligo?

Get accurate weather forecasts for Sligo, located at latitude 54.27 and longitude -8.469. Stay updated with localized weather information tailored for Sligo.

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