Jōgashima Island

Coastal island off Miura Peninsula with active lighthouse

Off the Miura Peninsula, Jōgashima has a coastal lighthouse, rocky headlands and small beaches; day‑trippers arrive for sea views, fishing and coastal walks.

Main image
250429 Jogashima Bus Stop 01.jpg
250429 Jogashima Bus Stop 02.jpg
250429 Jogashima Bus Stop 03.jpg
250429 Jogashima Bus Stop 04.jpg
250429 Jogashima Bus Stop.jpg
250429 Jogashima Harbor 01.jpg
250429 Jogashima Harbor 02.jpg
250429 Jogashima Harbor 03.jpg
250429 Jogashima Harbor 04.jpg
250429 Jogashima Harbor 05.jpg

Jōgashima at a Glance#

Address: Jōgashima (Jōgashima Island), Miura, Kanagawa Prefecture, Japan

Hours: Open daily

Admission: Free

About Jōgashima#

Jōgashima is a small island off the southern tip of the Miura Peninsula in Kanagawa Prefecture, Japan, known for its rocky coastline, a lighthouse and coastal walking routes.

The island’s shoreline includes headlands and viewing points that look out over Sagami Bay; the lighthouse marks maritime approaches and the island is a local day-trip destination for coastal scenery and seafood. Paths around the island allow short walks and fishing from accessible points.

Historically the island has been used for navigation and local fishing; maritime infrastructure such as the lighthouse reflects its role in marking coastal waters. The site has long been part of the coastal economy of the Miura Peninsula.

Jōgashima lies off the southern coast of Kanagawa Prefecture, connected to the Miura Peninsula by a short bridge or causeway and reached by road from nearby towns such as Miura and Yokosuka.

  • Access: Linked to the Miura Peninsula by a short causeway or bridge, enabling day trips from the Kanagawa mainland and nearby cities such as Yokosuka and Yokohama.
  • Views: Offers clear coastal vistas of Sagami Bay and, on clear days, views of Mount Fuji across the water from the island’s western shore.

What to See#

  • Lighthouse and headland: Jōgashima Lighthouse sits on the island and marks approaches to Miura and Sagami Bay, and the island’s western headland offers coastal walking paths and viewpoints over the bay and Strait of Sagami.

How to Get to Jōgashima#

Take the Keikyū Kurihama Line to Misakiguchi Station on the Miura Peninsula; from Misakiguchi you can catch a local bus that serves Jōgashima (services run from the station toward the coast) or walk roughly 30-40 minutes along coastal roads to reach the island/park area.

By car Jōgashima is on the southern tip of the Miura Peninsula - it is roughly 40 km south of central Yokohama (about 45-60 minutes by car) via Route 16 and connecting prefectural roads to the peninsula and the island access road.

Tips for Visiting Jōgashima#

  • Aim for sunrise or sunset at Jōgashima: the headland's viewpoints give the best light and-on a clear day-views toward Mount Fuji.
  • Use the pedestrian bridge from Misaki (Jogashima Bridge) to reach the island; park or arrive by public transport at Misaki Port and follow signs into Jogashima Park.
  • Don't skip the coastal walk around the southern tip and the lighthouse area-these give wide sea views and tide-pool exploration opportunities that many day-trippers miss.
  • Avoid weekend afternoons when Tokyo-area day-trippers and local anglers swell numbers; weekday mornings or late afternoons are far quieter.

Best Time to Visit Jōgashima#

Best late spring through autumn for pleasant coastal weather and island walks; summer is busiest for beach activities.

Summer
June - August · 20°C to 30°C
Warm, beach-oriented season with the most visitors - good for swimming, coastal walks and island scenery.
Autumn
September - November · 15°C to 25°C
Milder, less humid and typically quieter than summer - excellent for walking, photography and visiting the lighthouse.
Winter - Spring
December - April · 5°C to 15°C
Cooler, often quieter months good for off-season visits and coastal vistas; fewer beach activities.

Weather & Climate near Jōgashima#

Climate

Temperate climate with hot summers (peaking in August) and cold winters (coldest in February). Temperatures range from 5°C to 29°C. Abundant rainfall (1815 mm/year), wettest in June.

Air Quality: AQI 49 Good
Best Time to Visit
DecemberAugustJuly
Temperature & Rainfall
Temperature Range
33°
Warmest Month
1°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Good 6° - 13° 7° 71 mm some cloud 70% 4.5 m/s 0.4 low 9.9h
February Good 5° - 12° 6° 90 mm partly cloudy 72% 4.8 m/s 0.6 moderate 10.8h
March Acceptable 7° - 13° 7° 151 mm partly cloudy 73% 4.7 m/s 0.9 moderate 11.8h
April Good 11° - 17° 14° 158 mm partly cloudy 77% 4.9 m/s 1.2 high 13.0h
May Good 15° - 21° 18° 165 mm partly cloudy 81% 4.5 m/s 1.4 high 13.9h
June Good 19° - 24° 21° 228 mm overcast 87% 4.3 m/s 1.4 high 14.4h
July Good 22° - 27° 25° 159 mm overcast 89% 3.9 m/s 1.6 very high 14.1h
August Very Good 24° - 29° 26° 170 mm partly cloudy 86% 3.8 m/s 1.7 very high 13.3h
September Good 21° - 26° 24° 222 mm overcast 83% 4.0 m/s 1.2 high 12.3h
October Good 16° - 22° 19° 209 mm partly cloudy 79% 3.9 m/s 0.8 moderate 11.2h
November Good 12° - 18° 15° 129 mm partly cloudy 75% 4.1 m/s 0.5 low 10.2h
December Very Good 8° - 15° 12° 63 mm some cloud 71% 4.3 m/s 0.3 low 9.7h