See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
22°
Clear
Feels Like: 21°
Min: 18°
Max: 28°
The next few hours will be clear, with tomorrow reaching 28°C and dropping to 17°C. The coming days will be clear
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:57
Sunrise
19:14
Sunset
Moon
Waxing Crescent
11:36
Moonrise
21:03
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
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UV Index
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Weather in Viterbo tomorrow, September 16, 2026
Conditions in Viterbo on September 16, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. Morning skies stay relatively clear, holding cloud close to 0% near 00:00. The early part of the day favours being outside.
Expect highs of 28°C and cooler readings close to 18°C. The air stays humid, with relative humidity between 38% and 60% and the peak around 04:00. A lighter breeze peaks around 17:00 near 4.3 km/h.
Later hours favour clearer intervals, as cloud stays near 0% around 12:00. The afternoon is the better half for outdoor time. Visibility holds near 41.5 km, though it can fall to 40.1 km. The sun rises at 06:59 and sets at 19:12, for a total of 12 hours 13 minutes of sunlight today.
Taken together, settled sunshine in Viterbo on September 16, 2026 makes outdoor timing easier, with highs near 28°C.
Frequently asked questions about weather in Viterbo
How warm does it get in Viterbo?
The warmest month in Viterbo is July, with average high temperatures of 31°C. The average temperature during this period is around 25°C.
How cold does it get in Viterbo?
The coldest month in Viterbo is January, with average low temperatures of 4°C. The average temperature during this period is around 7°C.
What is the wettest time of year in Viterbo?
The wettest month in Viterbo is November, with an average of 125mm of precipitation.
What is the driest time of year in Viterbo?
The driest month in Viterbo is July, with an average of 26mm of precipitation.
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