Get Exclusive App Deals
  1. Home
  2. Japan
  3. Okinawa
  4. Okinawa Main Island
  5. Onna Village
  6. Blue Cave

Blue Cave

Blue Cave 1
Travel guide
2
Travel guide

Top 10 things to do in Blue Cave

Ongoing promotions in Blue Cave

Recommended travel destinations near Blue Cave

More destinations

Featured activity reviews in Blue Cave

Best time to visit Blue Cave

Data source：Meteostat
Last updated：2025-09

Weather in Blue Cave throughout the year

  • Spring (March–May): Average 2.5–13.2°C, climate transitioning from cold to mild, with less rainfall. Common activities: Sightseeing, snow viewing (if snow is present). Recommended clothing: Warm jacket, sweater, scarf, gloves.
  • Summer (June–August): Average 17.5–24.1°C, warm and humid climate, moderate rainfall. Common activities: Hiking, playing by streams (safety precautions needed). Recommended clothing: Light and breathable clothing, rain gear.
  • Autumn (September–November): Average 6.0–19.8°C, cool climate, relatively high rainfall, with October being the rainiest month. Common activities: Maple leaf viewing (if maple trees are present), enjoying the crisp autumn scenery. Recommended clothing: Light jacket, comfortable trousers.
  • Winter (December–February): Average -3.0–-1.7°C, cold climate, moderate to high rainfall. Common activities: Skiing (if nearby ski resorts are available), enjoying winter landscapes. Recommended clothing: Heavy warm jacket, hat, scarf, gloves, waterproof and windproof outerwear.

Weather in Blue Cave

Annual average temperature: approx. 9.6°C / Annual rainfall: approx. 1444 mm / Summer humidity: 70%–80% / Rainiest month: October

Blue Cave weather by month

Month
Temperature (°C)
Rainfall (mm)
January
-3°C
155.5
February
-2.2°C
117.6
March
2.5°C
59.9
April
8.6°C
52.1
May
13.2°C
67.6
June
17.5°C
83
July
22.4°C
124.4
August
24.1°C
158.6
September
19.8°C
143.7
October
12.8°C
178.9
November
6°C
178
December
-1.7°C
124.7

7-day weather forecast for Blue Cave

10/31
Saturday
Patchy rain nearby
13°C/6.2°C
11/1
Sunday
Patchy rain nearby
6.4°C/3.8°C
11/2
Monday
Patchy rain nearby
7.1°C/3.3°C
11/3
Tuesday
Patchy rain nearby
7.7°C/3.6°C
11/4
Wednesday
Sunny
7.2°C/2°C
11/5
Thursday
Overcast
11.3°C/1.8°C
11/6
Friday
Light drizzle
12.4°C/2.2°C

Blue Cave travel FAQs and useful info

Why is the Blue Cave famous?

The Blue Cave is famous for the mesmerising blue light that appears at certain times of the day. This natural phenomenon creates a unique glow within the grotto, making it one of the most celebrated natural beauty spots on the Adriatic coast.

Is the Blue Cave a real place?

Yes, the Blue Cave, also known as Modra Špilja, is a real natural sea cave located on the island of Biševo, near the island of Vis in Croatia. It's a highly sought-after destination for visitors to the Dalmatian coast.

Is the Blue Cave worth seeing?

The Blue Cave is absolutely worth seeing for its unparalleled natural beauty and the unique blue light effect. While boat tours can be enjoyable, the cave itself is the main attraction and offers an unforgettable visual experience.

Where is the Blue Cave located?

The Blue Cave is situated in the central Dalmatian archipelago of Croatia, specifically on the small island of Biševo, approximately 5 km south-west of the larger island of Vis.

What makes the Blue Cave unique?

The Blue Cave's uniqueness stems from its remarkable natural phenomenon where sunlight penetrates underwater passages and reflects off the white sandy seabed, illuminating the cave with an ethereal blue light. This effect is most striking between late morning and early afternoon.