Climate Insights for Ariano Irpino-Martiri

The climate in Ariano Irpino-Martiri is temperate. The average annual temperature is 14°C and approximately 803mm of precipitation falls per year. November is the wettest month, receiving around 117mm of rainfall. Ariano Irpino-Martiri is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to 2°C. Light snow can occur between January and December.

Temperatures in Ariano Irpino-Martiri vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 2°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between May and June, with a 6°C shift in average temperatures.

Ariano Irpino-Martiri is a moderately rainy area, receiving approximately 803mm of precipitation annually, which averages out to around 67mm per month. The wettest month is November, averaging 117mm of rainfall. March and May also tend to see above-average precipitation. The driest month is July, with just 29mm. That's 88mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Light snowfall can occur between January and December, totalling around 30cm annually. January is the snowiest month with approximately 12cm.

Ariano Irpino-Martiri is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 17km/h in winter, 18km/h in spring, 15km/h in summer, 16km/h in autumn.

It is currently spring in Ariano Irpino-Martiri, which began on March 20, 2026. Ariano Irpino-Martiri is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 30°C, while the coldest stretch bottoms out in January near 2°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Ariano Irpino-Martiri is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 51mm per month. By contrast, January can be quite cold with temperatures dropping to 2°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Ariano Irpino-Martiri based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.