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Blue Cave

Blue Cave 1
Travel guide
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Travel guide

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Best time to visit Blue Cave

Data source：Meteostat
Last updated：2025-09

Weather in Blue Cave throughout the year

  • Spring (March–May): Average 36–55°F, 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 63–75°F, 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 42–67°F, 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–-35.1°F, 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. 49.3°F / Annual rainfall: approx. 1444 mm / Summer humidity: 70%–80% / Rainiest month: October

Blue Cave weather by month

Month
Temperature (°F)
Rainfall (mm)
January
26.6°F
155.5
February
28°F
117.6
March
36.5°F
59.9
April
47.5°F
52.1
May
55.8°F
67.6
June
63.5°F
83
July
72.3°F
124.4
August
75.4°F
158.6
September
67.6°F
143.7
October
55°F
178.9
November
42.8°F
178
December
28.9°F
124.7

7-day weather forecast for Blue Cave

11/5
Thursday
Overcast
55.8°F/41.3°F
11/6
Friday
Light rain
54°F/38.7°F
11/7
Saturday
Blizzard
37.4°F/33.9°F
11/8
Sunday
Blowing snow
38.4°F/35.3°F
11/9
Monday
Heavy snow
35.2°F/29.7°F
11/10
Tuesday
Moderate or heavy snow showers
37.9°F/26.1°F
11/11
Wednesday
Patchy rain nearby
43.1°F/34.3°F

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.