Historical weather data, all-time temperature records, and monthly climate averages for Nagoya, Aichi, Japan. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Nagoya sits right in the sweet spot of spring, with average highs of 61° and lows of 41° across 66 years of records. The date has swung from a balmy 73° in 1994 to a bitter 29° low back in 1965, so pack a layer. There's a 39% chance of rain, but snow is off the table entirely.
Nagoya plays for keeps on both ends of the thermometer — the city has baked at 105° as recently as August 2025 and frozen down to 9° in February 1968. A single September day in 1972 dumped 7.56 inches of rain, and a February snowstorm that same frigid 1968 winter buried the city under 7.9 inches.
Summer in Nagoya is intense, with late July and early August averaging highs of 87-88° and the wettest stretch of the year arriving just before that in late June. For milder weather, April and October are the sweet spots, with highs in the mid-60s to low 70s. If you want to avoid the cold, steer clear of late January, when average highs barely crack 45°.