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16°
Mostly Cloudy
Feels Like: 15°
Min: 13°
Max: 21°
The next few hours will be overcast, with today reaching 21°C and dropping to 11°C. The coming days will be clear until afternoon, returning overnight.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:00
Sunrise
18:47
Sunset
Moon
Waxing Gibbous
18:14
Moonrise
05:21
Moonset
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View stargazing scoreWeather in Isernia today, September 25, 2026
Conditions in Isernia on September 25, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. The first half of the day looks overcast, as cloud amounts reach about 97% around 08:00. Brighter weather, if it comes, waits until later.
The temperature range runs from about 13°C up to 21°C. Moisture in the air spans 43%-94%, with the highest values around 06:00. Airflow remains manageable, reaching about 5.7 km/h around 15:00.
Later hours favour clearer intervals, as cloud stays near 30% around 23:00. The afternoon is the better half for outdoor time. Horizontal visibility sits around 37.3 km, briefly nearer 10.5 km. The sun rises at 07:00 and sets at 18:47, for a total of 11 hours 47 minutes of sunlight today.
Taken together, settled sunshine in Isernia on September 25, 2026 makes outdoor timing easier, with highs near 21°C.
Frequently asked questions about weather in Isernia
How warm does it get in Isernia?
The warmest month in Isernia is August, with average high temperatures of 28°C. The average temperature during this period is around 22°C.
How cold does it get in Isernia?
The coldest month in Isernia is January, with average low temperatures of 1°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Isernia?
The wettest month in Isernia is November, with an average of 190mm of precipitation.
What is the driest time of year in Isernia?
The driest month in Isernia is July, with an average of 43mm of precipitation.
