San Diego Weather

San Diego WeatherSan Diego might be considered almost world-renowned for its year-round mild weather. The city lies at a border between mild mediterranean and semi-desert climates. Because of this, San Diego is warm and sunny nearly every day of the year.

As many visitors and residents alike have discovered, San Diego has one of the most unusual summer climates of any U.S. metropolitan area. On nearly every day in the months of May and June, a cool marine layer will blanket the area in the morning, followed by its burning off in the afternoon. (This occurrence is often referred to locals as the "May gray" and the "June gloom.") The end result is an average high around 80 degrees Fahrenheit, making this time of year the perfect time to enjoy the area's coastal beauty.

This unending sequence of morning fog followed by afternoon sun continues well into late summer and early autumn. Sometimes temperatures will rise high to eliminate the morning gloom; in that case, August temperatures will occasionally reach well into the 90s.

Another common yet mostly infrequent feature of San Diego's weather is a phenomenon known as the Santa Ana winds. These winds blow hot, dry winds from west to east in the late summer and early fall. Often, they are responsible for San Diego's record high heat. They are also usually responsible for exacerbating the spread of wildfires that occasionally plague the area.

Winters in San Diego score among the mildest of any city in the United States. Snow has only been recorded 5 times since the city's weather was first recorded over 125 years ago. The lowest temperatures ever recorded was just 25 degrees, some odd degrees below the freezing point of water. For the most part, winter in this urban area is characterized by persistent cloudiness and occasional rain showers. On average, annual rainfall accumulates to a total of 12 inches. These dry conditions are responsible for San Diego's designation as a borderline semi-desert climate.

It is worth noting that San Diego's "rainy season" in the period from December to March makes precipitation infrequent. Appropriately, this makes the city subject to both droughts and flooding at different seasons throughout the year. On a very rare and unfortunate time of year, the average visitor to San Diego might experience a thunderstorm or even a hurricane. But such an event is incredibly unlikely, given that it has only occurred a handful a times in the region's recent history. If you should find anything amazing or surprising about weather in San Diego, it is that amazingly consistent and unchanging.