Climate Insights for Aci Castello

The climate in Aci Castello is warm and mild. The average annual temperature is 19°C and approximately 520mm of precipitation falls per year. November is the wettest month, receiving around 106mm of rainfall. Aci Castello is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 11°C.

Aci Castello sees moderate temperature variation throughout the year, ranging from 11°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 11°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between May and June, with a 4°C shift in average temperatures.

Aci Castello is a relatively dry area, receiving approximately 520mm of precipitation annually, which averages out to around 43mm per month. The wettest month is November, averaging 106mm of rainfall. October and February also tend to see above-average precipitation. The driest month is July, with just 4mm. That's 103mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Aci Castello is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 20km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, 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 5km/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 19km/h in winter, 17km/h in spring, 15km/h in summer, 17km/h in autumn.

It is currently spring in Aci Castello, which began on March 20, 2026. Aci Castello 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 August at around 29°C, while the coldest stretch bottoms out in January near 11°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Aci Castello is during April, May, June, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 39mm per month. By contrast, August can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 11°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 Aci Castello 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. 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.