Inverness records about 720mm of rain across roughly 145 wet days a year, which is a 40% chance on an average day. October is the wettest month at 62mm (9% of the annual total) and February the driest at 38mm. Local rain type: drizzle. Inverness is the gateway to the Highlands — expect frequent drizzle and rapid weather changes. The castle and covered Victorian Market provide shelter.
Chance of rain on an average day: 40%
Rainfall climatology for Inverness. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 720mm |
| Rain days per year | 145 |
| Odds on an average day | 40% |
| Wettest month | October — 62mm over 15 days |
| Driest month | February — 38mm over 9 days |
| Rain type | drizzle |
| Best dry window | May and June offer the driest weather with long Scottish summer daylight. |
| Worst rain window | October through December brings persistent drizzle and short days. |
October delivers 63% more rain than February (62mm vs 38mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 9% of the annual total, so rain in Inverness is spread through the year — there is no season you can rely on being dry.
Inverness rain is mostly persistent drizzle, where a waterproof shell beats an umbrella.
Rain falls on about 15 days in October against 9 in February — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 55mm | 13 | 43% | 6°C |
| February | 38mm | 9 | 30% | 6°C |
| March | 42mm | 10 | 33% | 8°C |
| April | 38mm | 9 | 30% | 10°C |
| May | 42mm | 10 | 33% | 14°C |
| June | 48mm | 12 | 40% | 16°C |
| July | 52mm | 13 | 43% | 18°C |
| August | 58mm | 14 | 47% | 18°C |
| September | 52mm | 13 | 43% | 16°C |
| October | 62mm | 15 | 50% | 14°C |
| November | 58mm | 14 | 47% | 10°C |
| December | 52mm | 13 | 43% | 8°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Inverness we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Inverness records rain on roughly 145 days a year — about a 40% chance on any given day — totalling around 720mm.
October, with about 62mm over 15 rain days. That is 9% of the entire year's rainfall in a single month.
February is the driest month at 38mm across roughly 9 days. May and June offer the driest weather with long Scottish summer daylight.
Inverness is the gateway to the Highlands — expect frequent drizzle and rapid weather changes. The castle and covered Victorian Market provide shelter.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.