The weather in September in Northern Ireland

Normal weather in Northern Ireland in September

The weather in Northern Ireland in September has an average temperature of around 16°C during the day. On average, September sees 85 mm of rain in Northern Ireland. The wind speed is 4 Beaufort and mainly comes from Southwest.

After August, September in Northern Ireland starts with a temperature of 17°C and ends around October at 14°C.

September averages for Northern Ireland

Temperature Average temperature
16°C
Sun Highest daytime temperature
18°C
Sun Lowest daytime temperature
14°C
Rain Total rainfall
85 mm
Rain Rainy days
11 days

ModerateStarStarStar

Sometimes too cold for this time of year, the temperature wa... more

Daphne Adrichem

Temperature per day in September in Northern Ireland

This graph shows the average daily maximum temperatures in September in Northern Ireland, indicated in degrees Celsius.

Temperature per day in September in Northern Ireland

Rainfall per day in September in Northern Ireland

This graph shows the average daily rainfall in September in Northern Ireland, indicated in millimeters.

Rainfall per day in September in Northern Ireland

UV index per day in September in Northern Ireland

This graph shows the average daily UV index in September in Northern Ireland.

UV index per day in September in Northern Ireland

Yearly temperature in September in Northern Ireland

This graph shows the average yearly temperature in September in Northern Ireland, measured in degrees Celsius, over the past years.

Yearly temperature in September in Northern Ireland

Yearly total rainfall in September in Northern Ireland

This graph shows the average yearly rainfall in millimeters in September in Northern Ireland, over the past years.

Rainfall per year in September in Northern Ireland

Average daily weather in September

Click on a day to get more information about the average weather on that day.

weather
max/min
rain
wind
uv
showers-day
17° 11°
0,7 mm
Z 4
4
rain
17° 10°
3,7 mm
Z 4
4
rain
16° 11°
5,4 mm
Z 4
4
rain
17° 11°
3,6 mm
ZW 4
5
showers-day
17° 11°
1,7 mm
ZW 4
4
showers-day
17° 12°
1,3 mm
ZW 4
4
rain
17° 12°
3,6 mm
ZW 4
4
showers-day
18° 12°
0,9 mm
Z 4
4
rain
17° 11°
7,1 mm
ZW 4
5
showers-day
16° 10°
1,5 mm
Z 4
3
rain
16° 11°
4,8 mm
ZW 4
4
rain
15° 10°
4,0 mm
W 4
4
rain
16°
2,9 mm
ZW 4
3
rain
16° 11°
3,1 mm
ZW 4
4
showers-day
15° 11°
1,6 mm
ZW 4
3
showers-day
15°
0,7 mm
ZW 3
3
rain
16°
2,5 mm
Z 3
3
showers-day
16°
1,0 mm
ZW 3
4
rain
16°
2,3 mm
Z 3
4
rain
15°
3,8 mm
Z 4
4
rain
15°
2,0 mm
ZW 4
4
rain
15°
4,4 mm
ZW 4
4
showers-day
14°
1,4 mm
ZW 4
4
rain
15°
4,1 mm
ZW 4
3
showers-day
15°
1,6 mm
ZW 4
4
rain
15°
3,0 mm
ZW 4
4
rain
14°
4,6 mm
ZW 4
3
showers-day
15°
1,9 mm
ZW 4
3
showers-day
14°
1,4 mm
ZW 4
4
rain
14°
4,9 mm
Z 4
3

Experiences with the weather in September in Northern Ireland

The weather in September in Northern Ireland is rated 3 out of 5 stars by 1 visitor.

Write your own review
Weather Experience: Moderate StarStarStar

Sometimes too cold for this time of year, the temperature was usually around 15 degrees. There was occasional rain and clouds, but there were also moments of beautiful sunshine. An umbrella is a must!— This text has been automatically translated into English

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Average weather in Northern Ireland by month

Click on a month below to see in detail how the weather typically is in Northern Ireland and what to expect. Based on the historical weather data of Northern Ireland, you can view the average temperature, rainfall, wind, and UV index for each day of the month.