Climate Insights for Sunny Isles Beach

The climate in Sunny Isles Beach is hot. The average annual temperature is 25°C and approximately 1390mm of precipitation falls per year. Sunny Isles Beach receives a notable amount of rainfall throughout the year, including during its driest month. Sunny Isles Beach 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, December, when temperatures can drop to 20°C.

Sunny Isles Beach has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 20°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Sunny Isles Beach is a fairly wet location, receiving approximately 1390mm of precipitation annually, which averages out to around 116mm per month. The wettest month is September, averaging 207mm of rainfall. June and October also tend to see above-average precipitation. The driest month is February, with just 52mm. That's 155mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Sunny Isles Beach 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 January, averaging 20km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap 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 20km/h in winter, 19km/h in spring, 14km/h in summer, 17km/h in autumn.

It is currently summer in Sunny Isles Beach, which began on June 21, 2026. Sunny Isles Beach 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 20°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Sunny Isles Beach is during January, February, March, April and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 67mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 29°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 Sunny Isles Beach 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.