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Shirahama Onsen
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Shirahama Onsen Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Shirahama Onsen year round climate
- Spring (March–May): Average 49–64°F, mild climate but with relatively high rainfall, especially in April and May. Popular activities: Onsen bathing, coastal walks, appreciating Wakayama Prefecture's natural scenery. Recommended clothing: Light jacket, long-sleeved shirts and pants, rain gear.
- Summer (June–August): Average 72–83°F, hot and humid with relatively high rainfall. Popular activities: Beach activities, water sports, nighttime firework displays. Recommended clothing: Light and breathable clothing, sunscreen, rain gear.
- Autumn (September–November): Average 65–55°F, comfortable and pleasant climate with gradually decreasing rainfall. Popular activities: Onsen bathing, appreciating autumn leaves, enjoying local cuisine. Recommended clothing: Light jacket, long-sleeved shirts and pants.
- Winter (December–February): Average 43–41°F, cold and dry with the least rainfall. Popular activities: Onsen bathing, enjoying Ryokan facilities, appreciating winter seascapes. Recommended clothing: Warm jacket, sweaters, scarf, gloves.
Shirahama Onsen climatological average
Annual average temperature: approx. 60.8°F / Annual rainfall: approx. 1402 mm / Summer humidity: 70%–80% / Rainiest month: June
Shirahama Onsen monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
40.6°F
22.8
February
41.9°F
47.2
March
49.8°F
118.5
April
59.5°F
169.3
May
64.8°F
187.1
June
72.7°F
189.5
July
81.7°F
148.1
August
83.3°F
155.8
September
79.7°F
125.8
October
65.5°F
108.7
November
55.6°F
114.1
December
43.7°F
15.6
Shirahama Onsen weather for the next seven days
4/25
Saturday
Partly Cloudy
64.2°F/50.9°F
4/26
Sunday
Patchy rain nearby
65.3°F/56.2°F
4/27
Monday
Moderate rain
65.7°F/57.4°F
4/28
Tuesday
Partly Cloudy
66°F/58.1°F
4/29
Wednesday
Patchy rain nearby
65.6°F/55.8°F
4/30
Thursday
Sunny
65.9°F/53.9°F
5/1
Friday
Sunny
64.9°F/52.7°F
