Lake Rotomahana
Lake Geothermal lake in North Island, once hosted terraces
Rotomahana near Rotorua occupies a volcanic landscape with active geothermal features; visitors book boat trips and guided tours to see hot springs, steam vents and recent volcanic terrain.
Lake Rotomahana is a geothermal lake on New Zealand’s North Island in the Bay of Plenty region, located on the flanks of Mount Tarawera. It is notable for its direct association with the 1886 Tarawera eruption, which dramatically changed the lake and surrounding geothermal landscape.
Shorelines around the lake show active geothermal features including steaming ground, fumaroles and hot springs. The lake and its environs are visited for their geothermal activity and to study the post-eruption landscape and altered hydrothermal systems.
Before 1886 the area contained the Pink and White Terraces, natural silica sinter formations that were largely destroyed in the eruption; the event enlarged and reshaped the lake’s basin. Scientific and archaeological work since then has focused on mapping the altered lakebed and nearby eruptive deposits.
The lake sits in a volcanic and geothermal zone southeast of Rotorua and is set among the slopes of Mount Tarawera and adjacent volcanic terrain. Access is typically via the wider Rotorua region and guided excursions operate into the area.
- 1886 Tarawera eruption: The 1886 eruption of Mount Tarawera destroyed the famed Pink and White Terraces and greatly altered the lake basin; parts of the terraces may remain under lake sediment.
How to Get to Lake Rotomahana #
From Rotorua, take State Highway 30 east then turn at State Highway 30A toward Kawerau; follow local roads east to the Tarawera/Rotomahana area-about a 40-60 minute drive. Some viewpoints and walking tracks are accessible from car parks maintained by local authorities and DOC.
Tips for Visiting Lake Rotomahana #
- Visit viewpoints that look down into the crater-some are a short, steep walk from the road and give dramatic vistas.
- Combine a visit with nearby geothermal features in the Bay of Plenty-there are multiple DOC tracks and interpretive displays.
- Respect safety warnings: the area is geothermally active and unstable ground can be present near hot springs and fumaroles.
Best Time to Visit Lake Rotomahana #
Late spring through early autumn for best access and milder weather.
Weather & Climate near Lake Rotomahana #
Lake Rotomahana's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in February) and cold winters (coldest in July). Temperatures range from 3°C to 22°C. Abundant rainfall (1520 mm/year), wettest in July, distributed fairly evenly throughout the year.
January
January is cool with highs of 22°C and lows of 12°C. Significant rainfall (106 mm).
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February
February is cool with highs of 22°C and lows of 12°C. Significant rainfall (113 mm).
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March
March is cool with highs of 21°C and lows of 11°C. Significant rainfall (146 mm).
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April
April is cool with highs of 18°C and lows of 8°C. Significant rainfall (107 mm).
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May
May is cool with highs of 15°C and lows of 5°C. Significant rainfall (119 mm).
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June
June is cold with highs of 13°C and lows of 4°C. Significant rainfall (131 mm).
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July
July is the coolest month with highs of 12°C and lows of 3°C. The wettest month with heavy rain (166 mm).
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August
August is cold with highs of 13°C and lows of 4°C. Significant rainfall (145 mm).
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September
September is cold with highs of 14°C and lows of 5°C. Significant rainfall (119 mm).
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October
October is cool with highs of 16°C and lows of 7°C. Significant rainfall (116 mm).
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November
November is cool with highs of 18°C and lows of 9°C. Significant rainfall (115 mm).
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December
December is cool with highs of 21°C and lows of 10°C. Significant rainfall (137 mm).
