Nagoya records about 1536mm of rain across roughly 105 wet days a year, which is a 29% chance on an average day. June is the wettest month at 198mm (13% of the annual total) and January the driest at 48mm. Local rain type: monsoon. Nagoya experiences tsuyu rainy season in June-July and typhoon risk in September. The city's covered shopping streets provide extensive shelter.
Chance of rain on an average day: 29%
Rainfall climatology for Nagoya. 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 | 1536mm |
| Rain days per year | 105 |
| Odds on an average day | 29% |
| Wettest month | June — 198mm over 15 days |
| Driest month | January — 48mm over 4 days |
| Rain type | monsoon |
| Best dry window | November through January offers dry, crisp winter conditions. |
| Worst rain window | June and September bring the most rainfall — tsuyu and typhoon season. |
June delivers 313% more rain than January (198mm vs 48mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 13% of the annual total, so rain in Nagoya is spread through the year — there is no season you can rely on being dry.
Nagoya rain arrives in short, heavy bursts — shelter and timing matter more than gear.
Rain falls on about 15 days in June against 4 in January — 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 | 48mm | 4 | 13% | 9°C |
| February | 56mm | 4 | 13% | 9°C |
| March | 108mm | 8 | 27% | 13°C |
| April | 118mm | 9 | 30% | 18°C |
| May | 138mm | 10 | 33% | 24°C |
| June | 198mm | 15 | 50% | 29°C |
| July | 192mm | 14 | 47% | 33°C |
| August | 118mm | 9 | 30% | 33°C |
| September | 196mm | 14 | 47% | 29°C |
| October | 128mm | 9 | 30% | 24°C |
| November | 72mm | 5 | 17% | 18°C |
| December | 48mm | 4 | 13% | 13°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Nagoya 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.
Nagoya records rain on roughly 105 days a year — about a 29% chance on any given day — totalling around 1536mm.
June, with about 198mm over 15 rain days. That is 13% of the entire year's rainfall in a single month.
January is the driest month at 48mm across roughly 4 days. November through January offers dry, crisp winter conditions.
Nagoya experiences tsuyu rainy season in June-July and typhoon risk in September. The city's covered shopping streets provide extensive 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.