Weather in Inverness in September 2025
Average weather
Average temperature in Inverness in September
The expected average maximum temperature in September is +18°C with a maximum of +28°C and a minimum of +4°C.
The average maximum temperature goes down 17% by the end of the month, compared with the beginning of the month, from +19°C to +15°C.
Is Inverness warm or cold in September?
Inverness is typically mild in September.
Maximum temperatures go down compared to the previous month from +18°C to +16°C. The minimum temperature also goes down from +11°C to +9°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
September is one of the warmest months in Inverness, here is the comparison with other months:
Climate in Inverness in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +18°C | +16°C | +12°C | ||||
| Min. temperature | ||||||
| 0°C | -1°C | -6°C | ||||
| Max. temperature | ||||||
| +29°C | +28°C | +22°C | ||||
| Rainfall | ||||||
| 109 mm | 89 mm | 105 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 80% | 81% | 83% | ||||
| Air pressure | ||||||
| 1011 HPa | 1011 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 8 | 8 | 8 | ||||
| Rainy days | ||||||
| 22 | 20 | 22 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +18°C in the day, the average maximum temperature lowers to +16°C. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 109 mm to 89 mm. Humidity rises from 80% to 81%. The average wind speed doesn’t change much during September, staying around 3 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Inverness is gradually increasing during September, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Inverness?
Climate Change over Years
The climate in Inverness in September has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+10°C) and the highest in 2023 (+13°C). The driest year was 1996 with only 738 mm of rainfall, and the wettest year was 2020 with 2582 mm.
FAQ
Is September a good time to visit Inverness?
Can you sunbathe in Inverness in September?
Is Inverness rainy in September?
Is it sunny in Inverness in September?
Other cities in United Kingdom
Monthly weather in Inverness
Source of the data
For this page, we’ve looked at the typical weather in Inverness, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.