Helensburgh in september: average Weather, Temperature and Climate
Weather in Helensburgh in september 2025
The weather in Helensburgh in the month of september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
bad weather
Weather at 6am
50°F
Moderate rain at times
29% of time
29%
13%
12%
Weather at 12pm
59°F
Moderate rain at times
37% of time
20%
18%
17%
Weather at 6pm
56°F
Moderate rain at times
39% of time
18%
15%
14%
Weather at 3am
50°F
30%
30%
13%
12%
Evolution of daily average temperature and precipitation in Helensburgh in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Helensburgh in september.
The climate of Helensburgh in september is bad
The weather in september in Helensburgh is wet (with 7.5in of rainfall over 12 days). The weather is better from the previous month since in august it receives an average of 9.2in of precipitation over 14 days.
The climate is fairly cool in this location the month of september, but it is livable by dressing hot. Temperatures are up to 59°F. In the morning the temperature drops to 50°F. Thus, the mean temperature average in september in Helensburgh is 56°F. Note that these seasonal averages are in contrast with those observed in Helensburgh in september with a maximum record of 77°F in 2021 and a minimum record of 36°F in 2010. You can expect to have about 3 days with temperatures over 65°F, or 10% of time.
In september in Helensburgh, the days on average last 12:45. Sunrise is at 05:51 and sets at 18:36.
With an unfavorable weather, this month is not recommended to go in this city.
September: another location in Scotland?
If you want to go to Scotland in september, there are destinations with better weather than Helensburgh:
In september, Dundee, Perth, Burntisland, Cockenzie, Kirkcaldy and Monifieth have good weather.
Finally, Edinburgh, Aberdeen, Glasgow, Inverness, Dumfries and Falkirk have a tolerable climate, but better than Helensburgh.
Seasonal average climate and temperature of Helensburgh in september
Check below seasonal norms These datas are compiled from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 56°F | ||||
| Highest temperature | 59°F | ||||
| Lowest temperature | 50°F | ||||
| Highest record temperature | 77°F (2021) | ||||
| Lowest record temperature | 36°F (2010) | ||||
| Number of days at +65°F | 3 day(s) (10%) | ||||
| Sea temperature | |||||
| Average sea temperature | 57°F | ||||
| Lowest sea temperature | 55°F | ||||
| Highest sea temperature | 58°F | ||||
| Wind | |||||
| Wind speed | 19km/h | ||||
| Wind temperature | 49°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 7.5in | ||||
| Number of days with rainfall | 12 day(s) (39%) | ||||
| Record daily rainfall | 1.7in (2012) | ||||
| Other climate data | |||||
| Humidity | 95% | ||||
| Visibility | 7.61km | ||||
| Cloud cover | 66% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:51 | ||||
| Time of sunset | 18:36 | ||||
| Length of day | 12:45 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Helensburgh in september 2024:
47°F to 58°F
54°F to 61°F
47°F to 56°F
45°F to 58°F
49°F to 68°F
52°F to 74°F
54°F to 72°F
58°F to 72°F
47°F to 58°F
47°F to 54°F
45°F to 54°F
38°F to 52°F
40°F to 54°F
49°F to 59°F
50°F to 59°F
47°F to 59°F
52°F to 68°F
56°F to 70°F
49°F to 68°F
45°F to 67°F
49°F to 67°F
47°F to 63°F
45°F to 63°F
47°F to 49°F
43°F to 50°F
45°F to 50°F
40°F to 50°F
38°F to 52°F
40°F to 54°F
47°F to 50°F
Map: other cities in Scotland in september
Cities near Helensburgh:
| Greenock in september | bad weather |
| Gourock in september | bad weather |
| Dumbarton in september | tolerable weather |
| Dunoon in september | bad weather |
| Largs in september | tolerable weather |
| Paisley in september | tolerable weather |
| Rothesay in september | tolerable weather |
| Loch Lomond & The Trossachs National Park in september | bad weather |
| Glasgow in september | tolerable weather |
| Newton Mearns in september | tolerable weather |
| Ardrossan in september | tolerable weather |
| Irvine in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Helensburgh
perfect weather
good
tolerable
bad
very bad
Weather data for Helensburgh in september:
Weather data for Helensburgh for september are derived from an average of the weather forecast since 2009 in Helensburgh. There is a margin of error and these forecasts are to be considered as general information only. The weather in Helensburgh 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 Helensburgh.