Nagoya is warmest in August, averaging 31° by day and 24° at night. The wettest month is July with 301 mm, and the year brings about 2105 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 9° | 1° | 68 mm | 13° | 9.9 h | Cool |
| February | 10° | 1° | 73 mm | 12° | 10.7 h | Cool |
| March | 15° | 4° | 158 mm | 13° | 11.7 h | Mild |
| April | 19° | 9° | 177 mm | 15° | 12.9 h | Mild |
| May | 23° | 14° | 220 mm | 18° | 13.9 h | Rainy season |
| June | 26° | 19° | 279 mm | 22° | 14.4 h | Rainy season |
| July | 30° | 23° | 301 mm | 27° | 14.2 h | Rainy season |
| August | 31° | 24° | 288 mm | 28° | 13.3 h | Rainy season |
| September | 28° | 21° | 216 mm | 27° | 12.2 h | Rainy season |
| October | 23° | 15° | 161 mm | 23° | 11.1 h | Mild |
| November | 18° | 9° | 102 mm | 20° | 10.1 h | Sightseeing |
| December | 11° | 3° | 62 mm | 16° | 9.6 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: No month in Nagoya combines swimming warmth with dry skies.
Walking the city: November — highs of 18–18° and no more than 102 mm of rain a month.
Wet season: May, June, July, August and September — up to 301 mm in a single month.