Spring (March–May): Average 43–57°F, gradually warming climate, but still relatively humid with occasional showers. Common activities: Hiking, strolling along the Lahn River, visiting historical sites. Recommended clothing: Light jacket, comfortable trousers or skirt, comfortable walking shoes.
Summer (June–August): Average 63–66°F, warm and relatively dry climate, ideal for outdoor activities. Common activities: Water sports, cycling, camping. Recommended clothing: Short-sleeved shirts, shorts, sandals.
Autumn (September–November): Average 58–42°F, cool climate, higher rainfall, large temperature difference between day and night. Common activities: Enjoying autumn scenery, savoring local cuisine, visiting museums. Recommended clothing: Light jacket, comfortable trousers or skirt, warm clothing.
Winter (December–February): Average 37–40°F, cold and humid climate, higher rainfall, and possible snowfall. Common activities: Indoor activities, visiting Christmas markets (if in December). Recommended clothing: Warm coat, scarf, gloves, hat, waterproof shoes.
Lahn climatological average
Annual average temperature: approx. 50.9°F / Annual rainfall: approx. 1069 mm / Summer humidity: 65%–75% / Rainiest month: January
Lahn monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
36.3°F
121.1
February
40.6°F
102.2
March
43.2°F
79.9
April
47.5°F
73.5
May
57.7°F
90.3
June
63.9°F
61.9
July
65.1°F
85.5
August
66.7°F
48.5
September
58.6°F
117.2
October
51.8°F
71.2
November
42.1°F
100.6
December
37°F
117.6
Lahn weather for the next seven days
2/11
Wednesday
Moderate rain
48.8°F/39.3°F
2/12
Thursday
Moderate rain
48.4°F/42.8°F
2/13
Friday
Patchy rain nearby
43.2°F/38.4°F
2/14
Saturday
Light freezing rain
35.1°F/27.6°F
2/15
Sunday
Sunny
35.6°F/25.8°F
2/16
Monday
Moderate rain
38.4°F/31.2°F
2/17
Tuesday
Overcast
42.9°F/34.6°F
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