Antrim in september: average Weather, Temperature and Climate
Weather in Antrim in september 2025
The weather in Antrim in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather
Weather at 6am
52°F
Cloudy
33% of time
28%
19%
12%
Weather at 12pm
59°F
Cloudy
49% of time
26%
15%
7%
Weather at 6pm
58°F
Cloudy
32% of time
28%
20%
12%
Weather at 3am
52°F
23%
21%
20%
15%
Evolution of daily average temperature and precipitation in Antrim in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Antrim in september.
The climate of Antrim in september is tolerable
the weather in Antrim in september is wet (with 1.9in of precipitation over 3 days). The weather is better from the previous month since in august it receives an average of 2.8in of rainfall over 4 days.
The climate is relatively cool in that area the month of september, but it is bearable by dressing warm. Temperatures are up to 61°F. On average, the recorded minimum temperature is 52°F. Thus, the mean temperature average on this month of september in Antrim is 56°F. Note that seasonal normals in contrast with those observed in Antrim in the month of september with a maximum record of 76°F in 2021 and a minimum record of 34°F in 2010. You can hope to have about 5 days with temperatures over 65°F, or 17% of time.
On this month of september, day length in Antrim is generally 12:43. The sun rises at 05:58 and sets at 18:41.
With a correct climate, the month of september is okay (but not the best) to go there in North Ireland.
September: another location in Northern Ireland?
If you want to go to Northern Ireland in september, there are destinations with better weather than Antrim:
In september, Donwpatrick, Larne, Annalong, Bangor, Carrickfergus and Dundrum have good weather.
Seasonal average climate and temperature of Antrim in september
Check below seasonal norms These datas are generated from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 56°F | ||||
| Highest temperature | 61°F | ||||
| Lowest temperature | 52°F | ||||
| Highest record temperature | 76°F (2021) | ||||
| Lowest record temperature | 34°F (2010) | ||||
| Number of days at +65°F | 5 day(s) (17%) | ||||
| Wind | |||||
| Wind speed | 20km/h | ||||
| Wind temperature | 49°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.9in | ||||
| Number of days with rainfall | 3 day(s) (10%) | ||||
| Record daily rainfall | 0.8in (2010) | ||||
| Other climate data | |||||
| Humidity | 95% | ||||
| Visibility | 8.37km | ||||
| Cloud cover | 60% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:58 | ||||
| Time of sunset | 18:41 | ||||
| Length of day | 12:43 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Antrim in september 2024:
56°F to 63°F
56°F to 59°F
50°F to 59°F
50°F to 58°F
47°F to 63°F
56°F to 70°F
54°F to 70°F
56°F to 61°F
49°F to 59°F
49°F to 56°F
47°F to 52°F
47°F to 54°F
40°F to 52°F
50°F to 63°F
50°F to 61°F
47°F to 65°F
56°F to 68°F
50°F to 65°F
50°F to 67°F
50°F to 65°F
50°F to 65°F
50°F to 65°F
49°F to 58°F
50°F to 54°F
47°F to 52°F
47°F to 49°F
47°F to 52°F
45°F to 56°F
47°F to 56°F
49°F to 50°F
Map: other cities in Northern Ireland in september
Cities near Antrim:
| Ballyclare in september | tolerable weather |
| Ballymena in september | tolerable weather |
| Newtownabbey in september | tolerable weather |
| Belfast in september | tolerable weather |
| Lisburn in september | tolerable weather |
| Castlereagh in september | tolerable weather |
| Holywood in september | tolerable weather |
| Carrickfergus in september | good weather |
| Magherafelt in september | tolerable weather |
| Larne in september | good weather |
| Craigavon in september | tolerable weather |
| Maghera in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Antrim
perfect weather
good
tolerable
bad
very bad
Weather data for Antrim in september:
Weather data for Antrim for september are derived from an average of the weather forecast since 2009 in Antrim. There is a margin of error and these forecasts are to be considered as general information only. The weather in Antrim can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Antrim.