Despite the rain, we were fortunate to still see dolphins. Departing from Minamishimabara City, the captain searched for dolphins at sea, and when he spotted groups of dolphins leaping, he invited us to the deck to watch them. Although the rain was a bit uncomfortable and disheveled in our raincoats, seeing dolphins was a precious experience. It's worth mentioning that we only had seven people on our dolphin-watching trip today – our family of five and a Japanese couple – it was practically a private boat! We'd love to come back and search for dolphins again!
The ship was very comfortable, the scenery was beautiful, and the staff were friendly. It was my first time disembarking from a ship with my car, a very novel experience.
Anonymous User
Family
Shimabara Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Shimabara year round climate
Spring (March–May): Average 12.8–21.0°C, warm and humid climate with relatively high rainfall. Cherry blossoms occasionally bloom in March and April. Common activities: Cherry blossom viewing (depending on bloom conditions), hiking, visiting historical sites. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 24.5–29.9°C, hot and humid with relatively high rainfall, especially in July. Common activities: Beach activities, visiting museums, enjoying local cuisine. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 20.4–15.1°C, comfortable and pleasant climate with relatively low rainfall. Common activities: Hiking, onsen experience, enjoying autumn scenery. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average 7.6–8.3°C, cold and humid climate with relatively low rainfall. Common activities: Indoor activities, onsen experience, enjoying local cuisine. Recommended clothing: Warm jacket, scarf, gloves, hat.
Shimabara climatological average
Annual average temperature: approx. 18.3°C / Annual rainfall: approx. 2112 mm / Summer humidity: 70%–80% / Rainiest month: July
Shimabara monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.6°C
56.5
February
8.3°C
92.7
March
12.8°C
251.4
April
17.7°C
223.6
May
21°C
274
June
24.5°C
369.8
July
28.6°C
371.5
August
29.9°C
165.2
September
27.6°C
92.3
October
20.4°C
96
November
15.1°C
81.8
December
7.6°C
37.8
Shimabara weather for the next seven days
6/21
Sunday
Patchy rain nearby
24.7°C/21.7°C
6/22
Monday
Moderate rain
24.7°C/19.1°C
6/23
Tuesday
Moderate rain
19.5°C/18.1°C
6/24
Wednesday
Heavy rain
19°C/18°C
6/25
Thursday
Heavy rain
22.5°C/19.6°C
6/26
Friday
Moderate rain
23.6°C/21.8°C
6/27
Saturday
Moderate rain
25.3°C/20.4°C
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