Nii-jima

Island Volcanic island with beaches and surfing spots

A volcanic island among Tokyo’s Izu archipelago, Nii-jima draws surfers to its sandy beaches, hikers to coastal trails and diners to local seafood and small cafés at its ferry ports.

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Nii-jima (Niijima) is a volcanic island in the Izu Islands chain, administered by Tokyo Metropolis. It is known locally for beaches, coastal scenery and marine recreation.

The island’s coastline includes sandy beaches suited to swimming and surfing and accessible coastal trails. Small harbors and ferry connections link it to other Izu Islands and to mainland ports.

The island originated from volcanic activity and features rugged coastal topography with low mountains and cliffs. Local settlements and services are concentrated in a few small villages and the island has seasonal visitor traffic.

Niijima sits in the Philippine Sea as part of the Izu archipelago, south of Honshu. It is reached by regular ferry services from mainland ports and by occasional island flights to nearby airfields.

  • Administration and distance: Administratively part of Tokyo Metropolis despite lying about 200 to 300 kilometres south of the Tokyo mainland, it is one of the Izu Islands.
Nii-jima
Niijima (Nii-jima), Ōshima Subprefecture, Tokyo Prefecture, Japan
34.3752, 139.2646
Open year-round
Free to visit the island; specific attractions/ferries have separate fares

How to Get to Nii-jima #

Niijima (Nii-jima) is one of the Izu Islands administered by Tokyo. From Tokyo you can reach Niijima by ferry or high-speed passenger boat from the Takeshiba/Tokyo waterfront passenger terminals (boats depart from the Hamamatsuchō/Takeshiba area), or by small regional flights from Chōfu Airport to Niijima Airport. Ferry/flight timetables are seasonal-check Tokai Kisen (and local airlines) for schedules.

Tips for Visiting Nii-jima #

  • Check ferry and high‑speed boat schedules from Tokyo/Atami and book ahead for weekends or holiday periods, since sea services to Nii‑jima sell out quickly.
  • Rent a bicycle or scooter on arrival - public transport on Nii‑jima is sparse and two‑wheel transport is the easiest way to reach beaches and surf spots around the island.

Best Time to Visit Nii-jima #

Aim for spring or early autumn to enjoy pleasant weather and avoid the busiest summer weeks.

Spring (pleasant)
April-June · 15-23°C
Comfortable temperatures for hiking, cycling and enjoying beaches before the peak summer crowds.
Summer (beach season, busier)
July-August · 24-30°C
Warmest period and busiest for swimming and surfing; be aware of higher visitor numbers and occasional typhoon influence late in the season.
Autumn (pleasant shoulder season)
September-October · 18-25°C
Warm sea temperatures linger and crowds thin after summer; good time for outdoor activities and fewer tourists.

Weather & Climate near Nii-jima #

Climate

Nii-jima's climate is classified as Humid Subtropical - Humid Subtropical climate with hot summers (peaking in August) and cold winters (coldest in February). Temperatures range from 6°C to 28°C. Heavy rainfall (2335 mm/year), wettest in June.

Best Time to Visit
AugustSeptemberJuly
Temperature & Rainfall
Temperature Range
30°
Warmest Month
Coldest Month
Monthly Conditions

January

January is cold with highs of 13°C and lows of 7°C. Significant rainfall (102 mm) and partly cloudy skies.

56 Acceptable

Comfort

10°
Feels Like Cold
10°C
Temperature
13°
69%
Humidity
Humid

Weather

102 mm
Rainfall
5.4 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.0h daylight

February

February is the coolest month with highs of 12°C and lows of 6°C. Significant rainfall (125 mm) and partly cloudy skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
71%
Humidity
Very Humid

Weather

125 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
10.8h daylight

March

March is cool with highs of 14°C and lows of 8°C. Significant rainfall (195 mm) and partly cloudy skies.

52 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
71%
Humidity
Very Humid

Weather

195 mm
Rainfall
5.3 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 18°C and lows of 12°C. Significant rainfall (199 mm) and partly cloudy skies.

60 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 18°
75%
Humidity
Very Humid

Weather

199 mm
Rainfall
5.2 m/s
Wind
Light Breeze
1.2
UV Index
High
12.9h daylight

May

May is cool with highs of 21°C and lows of 15°C. Heavy rain (213 mm) and mostly overcast skies.

56 Acceptable

Comfort

18°
Feels Like Cool
18°C
Temperature
15° 21°
81%
Humidity
Very Humid

Weather

213 mm
Rainfall
4.7 m/s
Wind
Light Breeze
1.5
UV Index
High
13.8h daylight

June

June is mild with highs of 23°C and lows of 18°C. The wettest month with heavy rain (291 mm) and mostly overcast skies.

64 Good

Comfort

21°
Feels Like Mild
21°C
Temperature
18° 23°
88%
Humidity
Very Humid

Weather

291 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.5
UV Index
Very High
14.3h daylight

July

July is warm with muggy conditions (dew point 23°C). Significant rainfall (194 mm) and mostly overcast skies.

68 Good

Comfort

24°
Feels Like Warm
24°C
Temperature
22° 26°
90%
Humidity
Very Humid

Weather

194 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.8
UV Index
Very High
14.1h daylight

August

August is the warmest month with stifling humidity (dew point 24°C). Heavy rain (217 mm) and partly cloudy skies.

74 Very Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 28°
87%
Humidity
Very Humid

Weather

217 mm
Rainfall
4.7 m/s
Wind
Light Breeze
1.8
UV Index
Very High
13.3h daylight

September

September is mild with highs of 26°C and lows of 21°C. Heavy rain (269 mm) and partly cloudy skies.

70 Very Good

Comfort

23°
Feels Like Mild
23°C
Temperature
21° 26°
82%
Humidity
Very Humid

Weather

269 mm
Rainfall
5.0 m/s
Wind
Light Breeze
1.4
UV Index
High
12.3h daylight

October

October is mild with highs of 22°C and lows of 17°C. Heavy rain (254 mm) and partly cloudy skies.

60 Good

Comfort

19°
Feels Like Mild
19°C
Temperature
17° 22°
76%
Humidity
Very Humid

Weather

254 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
11.2h daylight

November

November is cool with highs of 19°C and lows of 13°C. Significant rainfall (177 mm) and partly cloudy skies.

62 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
13° 19°
72%
Humidity
Very Humid

Weather

177 mm
Rainfall
4.8 m/s
Wind
Light Breeze
0.5
UV Index
Moderate
10.2h daylight

December

December is cool with highs of 15°C and lows of 9°C. Regular rainfall (99 mm) and partly cloudy skies.

58 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
15°
70%
Humidity
Humid

Weather

99 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.4
UV Index
Low
9.7h daylight

Nearby Attractions to Nii-jima