Hara Castle
Shimabara, Japan UNESCO World Heritage Site

Hara Castle is a Japanese castle in Shimabara, Japan, that was established in 1496. It is a Historic Site of Japan, part of the UNESCO World Heritage Hidden Christian Sites in the Nagasaki Region, and is included in the Continued Top 100 Japanese Castles. The site is one of the 115 sights of Japan on this site and is the 104th most looked-up sight in the country on English Wikipedia.
Planning a visit
Daily highs are between 28 °C and 31 °C from July to September. June and July have the most rain, with 512 mm and 535 mm. December and January have the least rain, at 77 mm and 84 mm. Daily lows are 4 °C in January and February.
The castle is 932 km from Tokyo. Amakusa Airport is 19 km away, and Nagasaki Airport is 45 km away. Visitors can combine a visit to the castle with a trip to Mount Unzen, located 14.8 km away. Other nearby locations include Oura Church, Dejima, and Glover Garden, which are all about 38 km from the castle. The Immaculate Conception Cathedral, Nagasaki, is 39.6 km away.
Weather by month
The warmest month is August, with an average high of 31 °C. The wettest is July, with about 535 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 10 | 11 | 14 | 19 | 23 | 26 | 30 | 31 | 28 | 23 | 17 | 12 |
| Average low, °C | 4 | 5 | 7 | 12 | 16 | 20 | 24 | 25 | 22 | 16 | 11 | 6 |
| Rainfall, mm | 84 | 116 | 199 | 220 | 269 | 512 | 535 | 259 | 265 | 119 | 106 | 77 |
| Rainy days | 10 | 12 | 12 | 12 | 13 | 18 | 22 | 19 | 17 | 10 | 11 | 10 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.