This was a small tour group of nine people. The tour guide and driver were the same person. Since the departure and return journeys each took about four hours, I appreciate the driver's hard work and attentive driving. The whole trip was very successful. Izu is truly beautiful, and the udon at the foot of Mt. Omuro was incredibly delicious – highly recommended! Also, the lemonade by the strait was very tasty, as recommended by our tour guide.
Anonymous User
Friend
Castle Peak Bay Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Castle Peak Bay year round climate
Spring (March–May): Average 11.6–18.5°C, mild and comfortable climate, but with relatively high rainfall; rain gear is recommended. Common activities: coastal hiking, enjoying the sea view. Recommended clothing: light jacket, long-sleeved shirts and pants.
Summer (June–August): Average 22.3–27.5°C, hot and humid, with relatively high rainfall; sun protection and rain gear are recommended. Common activities: swimming, surfing, water sports. Recommended clothing: light and breathable clothing, swimwear, hat, sunscreen.
Autumn (September–November): Average 19.3–15.3°C, comfortable and pleasant climate, with gradually decreasing rainfall. Common activities: coastal hiking, enjoying autumn scenery. Recommended clothing: light jacket, long-sleeved shirts and pants.
Winter (December–February): Average 9.7–7.5°C, relatively low temperature and humidity, with less rainfall. Common activities: enjoying the winter seascape, suitable for photography. Recommended clothing: warm jacket, sweater, scarf, hat.
Castle Peak Bay climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 2026 mm / Summer humidity: 70%–80% / Rainiest month: June
Castle Peak Bay monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
7.5°C
33.8
February
7.8°C
97.1
March
11.6°C
185.2
April
15.8°C
222.5
May
18.5°C
226.3
June
22.3°C
334.1
July
27.2°C
166.4
August
27.5°C
228.2
September
25.4°C
237.3
October
19.3°C
144.8
November
15.3°C
117.5
December
9.7°C
33.7
Castle Peak Bay weather for the next seven days
8/25
Tuesday
Sunny
29.5°C/22.6°C
8/26
Wednesday
Sunny
29.6°C/22.8°C
8/27
Thursday
Light rain shower
27.6°C/20.3°C
8/28
Friday
Patchy rain nearby
27.1°C/19.8°C
8/29
Saturday
Patchy rain nearby
25°C/20.7°C
8/30
Sunday
Light rain shower
24.4°C/20.1°C
8/31
Monday
Mist
27.5°C/22.2°C
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