Hiroshima Weather in May
May in Hiroshima brings high temperatures around 24°C (75°F) during the day, dropping to 15°C (59°F) at night, with quite a bit of rainfall expected, averaging around 132 mm (5.2 in) for the month.
Rainfall in Hiroshima in May
This month experiences about 14 days of rain according to historical data, averaging 132 mm (5.2 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Hiroshima in May
Daytime temperatures in Hiroshima reach 24°C (75°F) in May, dropping to 15°C (59°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Hiroshima in May
The month enjoys around 212 hours of sunshine, creating mostly sunny days with good weather conditions.
Wind Speed in Hiroshima in May
Wind speeds average 2 m/s (4 knots) during May. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hiroshima's climate page.
Hiroshima Temperature in May
Min Temperature
15°C (59°F)
Max Temperature
24°C (75°F)
Chance of Rain
46%
Precipitation
132 mm (5.2 in)
Rainy days
14 days
Humidity
63%
Windspeed
2 m/s (4 knots)
Sunshine
212 hours
Percentage Sunshine
48%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hiroshima typically stay consistent throughout May, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows typically ranging from 12°C (54°F) to 17°C (63°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Hiroshima in May
Browse day-by-day weather records for Hiroshima spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hiroshima historical weather extremes in May
Our historical data for Hiroshima spans 1976 to 2026, revealing these weather extremes.
- The hottest May day on record in Hiroshima reached 31°C (88°F) (May 22, 1998).
- Hiroshima experienced its chilliest May day on May 1, 1983, reaching only 13°C (55°F).
- The lowest overnight temperature recorded in May was 5°C (41°F) (May 9, 2003).
Best Places in Japan in May
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Hiroshima in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Hiroshima in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hiroshima's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Hiroshima climate overview or explore weather in Japan.
