Ufenau

Island Small island in Lake Zurich with medieval churches

The largest island in Lake Zürich, Ufenau offers a medieval church, walking paths and boat access; day-trippers come for quiet picnics, historic architecture and lakeside views.

Main image

Ufenau is the largest island in Lake Zurich, located near Rapperswil-Jona in the canton of St. Gallen, Switzerland. The island is noted for its early medieval church buildings and for being a protected natural area on the lake.

Visitors find a compact site combining built heritage and natural landscape: two historic churches and ruins stand near walking paths through wooded areas and shoreline. The island is used for short visits, picnics and birdwatching rather than extended stays.

Historically the island has strong monastic links and was tied to the Einsiedeln Abbey in the Middle Ages; the churches date from the early medieval period and have been preserved as part of the island’s cultural heritage.

Ufenau sits in Lake Zurich a short distance off the Rapperswil-Jona shore and is typically reached by seasonal passenger boats or private craft from the nearby towns on the lake.

  • Access: Served by seasonal boats from Rapperswil and other points on Lake Zurich; private boats also visit the island during the summer months.
  • Ownership and heritage: Owned historically by the Einsiedeln Abbey and containing medieval church buildings, the island combines cultural heritage with protected natural areas.

What to See #

  • Historic churches: The small medieval churches of the island include a Romanesque church and a later chapel; both are preserved as historical buildings and are focal points for visitors.
  • Nature reserve: Much of the island is designated as a nature reserve with walking paths and native vegetation; it is valued for birdlife and quiet recreation.
Ufenau
Ufenau Island, Lake Zürich, Switzerland
47.2173, 8.7790

How to Get to Ufenau #

Public boat services run from Rapperswil and other lakeside towns in summer; private boats can land at designated spots. From Rapperswil, the crossing is short-check boat timetables seasonally.

Tips for Visiting Ufenau #

  • If visiting by boat across Lake Zürich, check boat schedules from Pfäffikon or Rapperswil; island landings are regulated by local authorities.
  • Respect the quiet zones: Ufenau has protected Natura 2000 status and is managed for conservation and pilgrimage.
  • Bring a picnic and binoculars-birdlife and the island's Romanesque ruins reward slow exploration.

Best Time to Visit Ufenau #

Late spring to early autumn is ideal for island visits; off-season visits are quieter but boat services may be reduced.

Summer
June-September · 15-28°C
Best season for boat crossings and island walks; island flora and fauna are active.
Spring/Autumn
April-May, September-October · 8-18°C
Fewer visitors and pleasant light for photography; migratory birds pass through in spring and autumn.

Weather & Climate near Ufenau #

Climate

Ufenau's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from -2°C to 24°C. Abundant rainfall (1212 mm/year), wettest in July.

Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
30°
Warmest Month
-28°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 4°C and lows of -2°C. Moderate rainfall (67 mm) and mostly overcast skies.

43 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
87%
Humidity
Very Humid

Weather

67 mm
Rainfall
1.8 m/s
Wind
Calm
0.1
UV Index
Low
8.8h daylight

February

February is cold with highs of 5°C and lows of -1°C. Regular rainfall (80 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
85%
Humidity
Very Humid

Weather

80 mm
Rainfall
2.0 m/s
Wind
Calm
0.3
UV Index
Low
10.1h daylight

March

March is cold with highs of 10°C and lows of 2°C. Moderate rainfall (73 mm) and partly cloudy skies.

57 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
83%
Humidity
Very Humid

Weather

73 mm
Rainfall
2.2 m/s
Wind
Calm
0.5
UV Index
Moderate
11.8h daylight

April

April is cold with highs of 13°C and lows of 5°C. Regular rainfall (90 mm) and partly cloudy skies.

55 Acceptable

Comfort

Feels Like Cold
C
Temperature
13°
78%
Humidity
Very Humid

Weather

90 mm
Rainfall
2.2 m/s
Wind
Calm
0.9
UV Index
Moderate
13.5h daylight

May

May is cool with highs of 18°C and lows of 9°C. Significant rainfall (109 mm) and mostly overcast skies.

59 Acceptable

Comfort

14°
Feels Like Cool
14°C
Temperature
19°
78%
Humidity
Very Humid

Weather

109 mm
Rainfall
2.1 m/s
Wind
Calm
1.3
UV Index
High
14.9h daylight

June

June is cool with highs of 21°C and lows of 12°C. Significant rainfall (143 mm) and partly cloudy skies.

63 Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 21°
77%
Humidity
Very Humid

Weather

143 mm
Rainfall
2.0 m/s
Wind
Calm
1.6
UV Index
Very High
15.7h daylight

July

July is the warmest month with highs of 24°C and lows of 14°C. The wettest month with heavy rain (144 mm) and partly cloudy skies.

75 Very Good

Comfort

19°
Feels Like Mild
19°C
Temperature
14° 24°
77%
Humidity
Very Humid

Weather

144 mm
Rainfall
1.9 m/s
Wind
Calm
1.6
UV Index
Very High
15.3h daylight

August

August is mild with highs of 23°C and lows of 14°C. Significant rainfall (138 mm) and partly cloudy skies.

71 Very Good

Comfort

19°
Feels Like Mild
19°C
Temperature
14° 23°
78%
Humidity
Very Humid

Weather

138 mm
Rainfall
1.7 m/s
Wind
Calm
1.3
UV Index
High
14.1h daylight

September

September is cool with highs of 19°C and lows of 11°C. Regular rainfall (99 mm) and partly cloudy skies.

67 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
11° 19°
81%
Humidity
Very Humid

Weather

99 mm
Rainfall
1.7 m/s
Wind
Calm
0.9
UV Index
Moderate
12.4h daylight

October

October is cool with highs of 14°C and lows of 7°C. Regular rainfall (90 mm) and mostly overcast skies.

53 Acceptable

Comfort

10°
Feels Like Cool
10°C
Temperature
14°
82%
Humidity
Very Humid

Weather

90 mm
Rainfall
1.6 m/s
Wind
Calm
0.4
UV Index
Low
10.7h daylight

November

November is cold with highs of 8°C and lows of 2°C. Regular rainfall (95 mm) and mostly overcast skies.

43 Poor

Comfort

Feels Like Cold
C
Temperature
85%
Humidity
Very Humid

Weather

95 mm
Rainfall
1.8 m/s
Wind
Calm
0.2
UV Index
Low
9.2h daylight

December

December is cold with highs of 5°C and lows of 0°C. Regular rainfall (84 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

84 mm
Rainfall
1.9 m/s
Wind
Calm
0.1
UV Index
Low
8.3h daylight

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