Great Ocean Road records about 780mm of rain across roughly 155 wet days a year, which is a 42% chance on an average day. July is the wettest month at 82mm (11% of the annual total) and February the driest at 38mm. Local rain type: steady rain. Southern Ocean weather is unpredictable — layers and a waterproof jacket are essential. Rain can appear from a clear sky in minutes. Coastal wind makes umbrellas impractical at the Twelve Apostles.
Chance of rain on an average day: 42%
Rainfall climatology for Great Ocean Road. 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.
Conditions on this page are recalculated from the latest forecast every time it is opened, for the current date in the location's own time zone. Showing .
| Annual rainfall | 780mm |
| Rain days per year | 155 |
| Odds on an average day | 42% |
| Wettest month | July — 82mm over 17 days |
| Driest month | February — 38mm over 8 days |
| Rain type | steady rain |
| Best dry window | January and February offer the warmest and driest conditions for coastal photography and beach visits. |
| Worst rain window | July and August bring cold, wet Southern Ocean fronts — dramatic for photography but unpleasant for extended outdoor exposure. |
July delivers 116% more rain than February (82mm vs 38mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 11% of the annual total, so rain in Great Ocean Road is spread through the year — there is no season you can rely on being dry.
Great Ocean Road rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 17 days in July against 8 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 | 42mm | 9 | 30% | 24°C |
| February | 38mm | 8 | 27% | 24°C |
| March | 48mm | 10 | 33% | 23°C |
| April | 65mm | 13 | 43% | 20°C |
| May | 75mm | 15 | 50% | 18°C |
| June | 78mm | 16 | 53% | 15°C |
| July | 82mm | 17 | 57% | 14°C |
| August | 80mm | 16 | 53% | 14°C |
| September | 72mm | 15 | 50% | 15°C |
| October | 68mm | 14 | 47% | 18°C |
| November | 58mm | 12 | 40% | 20°C |
| December | 50mm | 10 | 33% | 23°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Great Ocean Road 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.
Great Ocean Road records rain on roughly 155 days a year — about a 42% chance on any given day — totalling around 780mm.
July, with about 82mm over 17 rain days. That is 11% of the entire year's rainfall in a single month.
February is the driest month at 38mm across roughly 8 days. January and February offer the warmest and driest conditions for coastal photography and beach visits.
Southern Ocean weather is unpredictable — layers and a waterproof jacket are essential. Rain can appear from a clear sky in minutes. Coastal wind makes umbrellas impractical at the Twelve Apostles.
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.