Solana Beach (CA) Temperature by Month

Solana Beach, California, United States of America has a consistently pleasant climate year-round, with daytime highs averaging 21°C (70°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The climate in Solana Beach remains fairly constant, offering pleasant temperatures throughout the year. Maximum daytime temperatures reach a comfortable 24°C (75°F) in September, dropping to a pleasant 18°C (64°F) in December. Nighttime lows stay between 18°C (64°F) and 8°C (46°F).

The chart below illustrates the average maximum day and minimum night temperatures in Solana Beach by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. September, the city's warmest month, gets 253 hours of sunshine.

The chart below shows the average temperature throughout the year:

Solana Beach's average annual maximum temperature is 21°C (70°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Solana Beach, December is the coolest month, with average highs of 18°C (64°F) and humidity around 64%, considered high. In September, the warmest month, temperatures average 24°C (75°F) with 74% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Solana Beach's weather, including monthly rainfall, sunshine hours, and humidity, visit our Solana Beach climate page.