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Hateruma Island

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Hateruma Island Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Hateruma Island year round climate

  • Spring (March–May): Average 69–78°F, mild and comfortable climate with less rainfall. Common activities: snorkeling, diving, beach walks. Recommended clothing: light and breathable clothing, light jacket.
  • Summer (June–August): Average 82–85°F, hot and humid, still with less rainfall. Common activities: swimming, surfing, sunbathing. Recommended clothing: light short-sleeved clothing, swimwear, sun hat.
  • Autumn (September–November): Average 80–75°F, comfortable and pleasant climate with moderate rainfall. Common activities: sea fishing, stargazing, exploring island scenery. Recommended clothing: light jacket or long-sleeved shirt.
  • Winter (December–February): Average 68–69°F, warm and comfortable, with little rain. Common activities: watching the sunrise, birdwatching, enjoying the peaceful island life. Recommended clothing: light and warm clothing.

Hateruma Island climatological average

Annual average temperature: approx. 77.0°F / Annual rainfall: approx. 76 mm / Summer humidity: 65%–75% / Rainiest month: May

Hateruma Island monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
67.1°F
2.6
February
69.4°F
3
March
69.4°F
2.4
April
77.7°F
5.9
May
78.3°F
13
June
82.8°F
5.5
July
85.3°F
8.1
August
84.6°F
6.8
September
84°F
6.3
October
81°F
11.7
November
75.9°F
7.1
December
68.5°F
4.5

Hateruma Island weather for the next seven days

12/18
Thursday
Patchy rain nearby
71.8°F/70.9°F
12/19
Friday
Moderate rain
73°F/69.3°F
12/20
Saturday
Moderate rain
71.7°F/69.8°F
12/21
Sunday
Patchy rain nearby
73.8°F/71.1°F
12/22
Monday
Patchy rain nearby
69.9°F/67°F
12/23
Tuesday
Patchy rain nearby
71.8°F/66.3°F
12/24
Wednesday
Patchy rain nearby
70.9°F/69.4°F

Hateruma Island Frequently Asked Questions and Useful Information for Travel

Is Hateruma Island worth visiting?

Hateruma Island, the southernmost inhabited island in Japan, is home to the "Japan's Southernmost Monument." If you visit the island, this is a must-see attraction.

How do you get to Hateruma Island?

Hateruma Island is accessible by high-speed ferry from Ishigaki Port. The crossing takes around 60–100 minutes.

What is Hateruma Island known for?

Although it is inconvenient because it is a remote island, the beauty of the sea, known as "Hateruma blue," makes the long boat ride well worth the visit. Hateruma Island is also known for its ocean, and Pemuchihama, the southernmost beach in Japan, has beautiful coral reefs.

What is the language spoken on Hateruma Island?

The local language spoken on Hateruma Island is Hateruma Yaeyama, an endangered Ryukyuan language spoken by a small population.

What are the must-see attractions on Hateruma Island?

A must-see attraction on Hateruma Island is the "Japan's Southernmost Monument." Additionally, the island is renowned for its stunning "Hateruma blue" sea and Pemuchihama, the southernmost beach in Japan, which boasts beautiful coral reefs.