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Weather in Sligo for September 2026

Your guide to Sligo weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Sligo has been nearly identical to the historical average, with a temperature of 16.1 °C (showing only a slight deviation of 0.4 °C).

  • The forecast for the next days in Sligo predicts temperatures to be around 16 °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 moderately fall, reaching an average of 15.3 °C by the end of September.

    • Rain 🌧️

  • Sligo experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 99.8 mm.

Average dry days
8
Dry days
Average rainy days
22
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/8°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Sligo 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
Light rain shower
17°
3
Light rain shower
15°
4
Light rain shower
15°
5
Patchy rain possible
17°
6
Sunny
20°
7
Partly cloudy
17°
8
Patchy rain possible
14°
9
Patchy rain possible
15°
10
Light rain shower
14°
11
Light rain shower
14°
12
Light rain shower
14°
13
Light rain
15°
14
Light drizzle
16°
15
Patchy rain possible
15°
16
Patchy rain possible
15°
17
Patchy rain possible
14°
18
Light rain shower
15°
19
Patchy rain possible
15°
20
Overcast
18°
21
Mist
20°
22
Sunny
20°
23
Mist
20°
24
Patchy rain possible
15°
25
Overcast
17°
26
Sunny
18°
27
Patchy rain possible
15°
28
Patchy rain possible
14°
29
Patchy rain possible
14°
30
Light drizzle
14°

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° 6.8 mm 3
2 Sept. Light rain shower
Light rain shower
 17° /10° 3.6 mm 3
3 Sept. Light rain shower
Light rain shower
 15° /9° 5.4 mm 2
4 Sept. Light rain shower
Light rain shower
 15° /9° 2.6 mm 3
5 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 0.2 mm 3
6 Sept. Sunny
Sunny
 20° /10° 1.3 mm 4
7 Sept. Partly cloudy
Partly cloudy
 17° /10° 2.4 mm 3
8 Sept. Patchy rain possible
Patchy rain possible
 14° /8° 2.2 mm 3
9 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 1.5 mm 2
10 Sept. Light rain shower
Light rain shower
 14° /9° 10.1 mm 2
11 Sept. Light rain shower
Light rain shower
 14° /8° 7.5 mm 2
12 Sept. Light rain shower
Light rain shower
 14° /8° 8.7 mm 2
13 Sept. Light rain
Light rain
 15° /6° 5.3 mm 2
14 Sept. Light drizzle
Light drizzle
 16° /10° 8.4 mm 3
15 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 9 mm 4
16 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 4.3 mm 2.6
17 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 2.3 mm 2.4
18 Sept. Light rain shower
Light rain shower
 15° /10° 5.4 mm 0.4
19 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 1.4 mm 2.9
20 Sept. Overcast
Overcast
 18° /9° 0.6 mm 4
21 Sept. Mist
Mist
 20° /13° 0 mm 6
22 Sept. Sunny
Sunny
 20° /12° 0 mm 5
23 Sept. Mist
Mist
 20° /11° 0.2 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 15° /8° 1.3 mm 3
25 Sept. Overcast
Overcast
 17° /7° 0 mm 5
26 Sept. Sunny
Sunny
 18° /9° 0 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 0.6 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
 14° /12° 1.8 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 3.5 mm 4
30 Sept. Light drizzle
Light drizzle
 14° /9° 3.3 mm 4
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 8°, 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 99.8 mm spread over approximately 22 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 24 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 💧
Typically, Sligo has 22 rainy days in September with a total of 99.8 mm of rainfall.

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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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