Inverness weather in September
September in Inverness: cool, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Inverness · #494 of 897 destinations to visit in September · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Inverness in September
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Inverness climate normals — September
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 14 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 7 h/day | |
| Daylight | 12.8 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 27 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Inverness in September — FAQ
- Is September a good time to visit Inverness?
- September in Inverness: cool, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Inverness on SeasonMap's comfort score (81/100).
- What is the weather like in Inverness in September?
- In September, Inverness averages a daily high of 15.8°C and a low of 9.8°C, with about 73.9 mm of rain over roughly 14.4 rainy days.
- What is the air quality in Inverness in September?
- Inverness has a mean US Air Quality Index of about 27 in September.