Wakayama Weather in May
May in Wakayama sees daytime temperatures around 23°C (73°F) and lows of 16°C (61°F) at night. With around 153 mm (6 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Wakayama in May
Expect around 15 days of rain based on historical data, with 153 mm (6 in) average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Wakayama in May
In May, Wakayama gets high temperatures, with highs of 23°C (73°F). Nights cool to around 16°C (61°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Wakayama in May
There are approximately 203 hours of sunshine this month, resulting in mostly clear days.So this is a great month to visit if you prefer dry days with pleasant temperatures.
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 Wakayama's climate page.
Wakayama Temperature in May
Min Temperature
16°C (61°F)
Max Temperature
23°C (73°F)
Chance of Rain
49%
Precipitation
153 mm (6 in)
Rainy days
15 days
Humidity
68%
Sunshine
203 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Wakayama typically stay consistent throughout May, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows typically ranging from 14°C (57°F) to 18°C (64°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 Wakayama in May
Browse day-by-day weather records for Wakayama spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Wakayama historical weather extremes in May
Based on weather observations in Wakayama between 1976 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Wakayama reached 31°C (88°F) (May 27, 2015).
- The lowest daytime temperature in May was 15°C (59°F), recorded on May 12, 1995.
- Wakayama registered its coldest May night on May 2, 1980, with temperatures dropping to 6°C (43°F).
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 →
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What to Wear in Wakayama in May
For Wakayama in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Wakayama 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 Wakayama's climate page.
Temperature Rainfall Sunshine Humidity
See the full Wakayama climate overview or explore weather in Japan.
