Hennef (Sieg) weather
At 9:15 PM local time it was partly cloudy and 5°C (41°F). Little to no rain in the next 24 hours. Best months for weather: May–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Hennef (Sieg), North Rhine-Westphalia, Germany.
Current conditions
- Clouds
- 63%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Hennef (Sieg) weather
Is it raining in Hennef (Sieg) right now?
No. It’s partly cloudy and 5° right now. Little to no rain in the next 24 hours.
What’s the weather like in Hennef (Sieg) this week?
Over the next 7 days, expect highs of 8–12° and lows of 1–5°. Rain is likely on 1 of 7 days (Monday). The driest day looks like Saturday.
Has it been raining in Hennef (Sieg) lately?
In the past 7 days, Hennef (Sieg) had 3 rainy days and 41.5 mm of rain in total.
What should I pack for Hennef (Sieg)?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Hennef (Sieg) weather by month
When is the best time to visit Hennef (Sieg)?
Based on weather alone, the best time to visit Hennef (Sieg) is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 3°C (37°F) in January to 24°C (75°F) in July.
What is the rainiest month in Hennef (Sieg)?
December is the wettest month, with about 92 mm (3.6 in) of rain on average. April is the driest, with about 50 mm (2.0 in).
What is the hottest month in Hennef (Sieg)?
July is the warmest, with average highs of 24°C (75°F) and lows of 13°C (56°F). January is the coolest, with highs of 3°C (37°F) and lows of -2°C (28°F).
Does Hennef (Sieg) have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is December at about 92 mm (3.6 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months