Samosir Island is in the crater lake Lake Toba on Sumatra,
Indonesia. Their equatorial latitude normally makes them very warm
year-round, but their altitude (3000 feet) reduces the temperature
compared to the areas around the crater. The average minimum
temperature is about 23 to 24°C (73 to 75°F) and the average
maximum temperature is 31 to 33° (88 to 91°F).
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It already is, and feeding the growth of Samosir Island, in the
center of Lake Toba. The Toba volcano is expected to erupt again in
about 300,000 years. Plan on being out of town,