Lake Õisu
Lake Estonian lake within Õisu manor park
Õisu Lake in Viljandi County sits beside a historic manor park and recreation grounds; visitors come for lakeside walks, swimming and seasonal birdwatching.
How to Get to Lake Õisu #
From Viljandi, drive via regional roads toward Õisu (roughly 25-30 minutes). The lake is best accessed by car; local lanes lead to small parking areas and lakeside paths.
Tips for Visiting Lake Õisu #
- Walk the marked paths on the western shore to see the lake's best viewpoints and the old stone causeway remains.
- Visit during frog and bird migration season (spring) for lively natural spectacles.
- Combine a trip with a stop at Viljandi town (approx. 25 km) for cafés and cultural sites.
Best Time to Visit Lake Õisu #
Summer is the most visitor‑friendly; spring brings migration activity; autumn is quieter.
Weather & Climate near Lake Õisu #
Lake Õisu's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in February). Temperatures range from -10°C to 23°C. Moderate rainfall (654 mm/year).
January
January is freezing with highs of -3°C and lows of -8°C. Moderate rainfall (43 mm) and mostly overcast skies.
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February
February is the coldest month with highs of -3°C and lows of -10°C. Moderate rainfall (31 mm) and mostly overcast skies.
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March
March is freezing with highs of 2°C and lows of -5°C. Moderate rainfall (33 mm) and partly cloudy skies.
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April
April is cold with highs of 9°C and lows of 0°C. Moderate rainfall (33 mm) and partly cloudy skies.
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May
May is cool with highs of 17°C and lows of 5°C. Moderate rainfall (41 mm) and partly cloudy skies.
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June
June is cool with highs of 20°C and lows of 10°C. Moderate rainfall (60 mm) and partly cloudy skies.
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July
July is cool with highs of 23°C and lows of 12°C. Moderate rainfall (71 mm) and partly cloudy skies.
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August
August is cool with highs of 21°C and lows of 11°C. The wettest month with 77 mm of rain and partly cloudy skies.
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September
September is cool with highs of 15°C and lows of 6°C. Moderate rainfall (74 mm) and mostly overcast skies.
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October
October is cold with highs of 9°C and lows of 2°C. Moderate rainfall (67 mm) and mostly overcast skies.
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November
November is cold with highs of 3°C and lows of -2°C. Moderate rainfall (70 mm) and mostly overcast skies.
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December
December is freezing with highs of -1°C and lows of -6°C. Moderate rainfall (54 mm) and mostly overcast skies.
