Santa Barbara, on California’s central coast, boasts a warm-summer Mediterranean climate with mild, rainy winters and warm, mostly dry summers. Sunshine is abundant year-round, and coastal breezes keep temperatures comfortable. The city’s inviting weather, with few extremes and little rainfall outside winter, makes it a favourite for outdoor activities and beach escapes.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Santa Barbara’s climate is classified as warm-summer Mediterranean (Köppen Csb), shaped by its coastal location and ocean breezes. Summers (June–September) are warm but rarely hot, with average highs of 22–24°C and cool nights around 13–15°C. Rain is scarce in summer, and skies are typically clear, though morning fog – known locally as “June Gloom” – can occur in late spring and early summer. The hottest days, sometimes exceeding 30°C, are rare and usually linked to Sundowner or Santa Ana winds, which can also occur in autumn.
Winters (December–February) are mild and wetter, with average highs of 17–19°C and lows of 5–8°C. Most annual rainfall (about 440 mm) falls between November and March, with December and January being the wettest months. Rainy days are typically brief, and sunshine is still common even in winter. Snow is virtually unknown at sea level, though it may dust the nearby mountains. Santa Barbara enjoys around 3,100 hours of sunshine annually, with 8–11 hours per day in spring and summer. Winds are generally gentle (8–15 km/h), but Sundowner events can bring stronger gusts. The Pacific Ocean keeps sea temperatures cool, ranging from 13.5°C in spring to 17.5°C in late summer, making wetsuits popular for water sports outside the warmest months.
| Average climate data for Santa Barbara, United States | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 17 | 16 | 17 | 19 | 21 | 23 | 26 | 26 | 25 | 23 | 19 | 16 | 26 |
| Average minimum temperature (°C) | 9 | 9 | 9 | 10 | 12 | 14 | 16 | 17 | 17 | 14 | 11 | 9 | 9 |
| Average precipitation (mm) | 40 | 35 | 38 | 14 | 4 | 2 | 6 | 2 | 3 | 5 | 13 | 34 | 196 |
| Average rainfall days (days) | 5 | 6 | 7 | 5 | 2 | 1 | 3 | 1 | 2 | 2 | 3 | 6 | 44 |
| Average relative humidity (%) | 59 | 63 | 65 | 61 | 62 | 61 | 62 | 58 | 55 | 55 | 55 | 60 | 60 |
| Average wind speed (km/h) | 11 | 12 | 12 | 13 | 13 | 10 | 9 | 9 | 10 | 10 | 10 | 11 | 11 |
| Average water temperature (°C) | 14 | 14 | 13 | 13 | 13 | 15 | 17 | 17 | 16 | 16 | 15 | 15 | 15 |
| Average daily daylight hours (h) | 10 | 11 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 | 10 | 9 | 12 |
| Average daily sunshine hours (h) | 6 | 6 | 8 | 11 | 11 | 12 | 12 | 11 | 11 | 8 | 7 | 6 | 9 |
| Average cloud coverage (%) | 20 | 22 | 23 | 16 | 12 | 8 | 6 | 4 | 7 | 9 | 14 | 23 | 14 |
| Average UV index | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 4 | 4 | 5 |
The best time to visit Santa Barbara is from April to October, when the weather is warm (18–24°C), rainfall is minimal, and sunshine is abundant. These months are perfect for beach days, festivals, and exploring the outdoors, with the Pacific breezes keeping conditions comfortable even at summer’s peak.
The least favourable time to visit is from December to February, when Santa Barbara experiences its coolest and wettest weather. While still mild compared to most destinations, occasional storms and cooler nights can limit some outdoor activities, though the city remains pleasant and less crowded.
Santa Barbara has a warm-summer Mediterranean climate with mild, rainy winters and warm, dry summers. Temperatures are comfortable year-round, and sunshine is abundant, making it ideal for outdoor activities.
The best time to visit is from April to October, when temperatures are warm, rainfall is low, and sunshine is plentiful. Summer and early autumn are especially popular for beach trips and festivals.
Rain falls mainly from November to March, with December and January being the wettest months. Snow is extremely rare at sea level, though the nearby mountains may see occasional dustings.
Summer highs typically range from 22–24°C, with occasional hotter days above 30°C during Sundowner or Santa Ana wind events. Coastal breezes keep most days comfortable and pleasant.
‘June Gloom’ refers to the frequent morning fog and low clouds that occur in late spring and early summer. It usually clears by midday, giving way to sunny afternoons.
Ocean temperatures range from 13.5°C in spring to 17.5°C in late summer. Late summer is best for swimming, but many prefer wetsuits for water sports outside this period.
The warmest month, with the highest average maximum temperature, is August (26.2 °C). The month with the lowest average maximum temperature is December (15.9 °C). Overall, the average maximum temperature over the whole year is 20.7 °C.
The month with the highest average minimum temperature is August (16.7 °C). The coldest month, with the lowest average minimum temperature, is February (8.6 °C). Overall, the average minimum temperature over the whole year is 12.3 °C.
The month with the highest average water temperature is August (16.8 °C). The month with the lowest average water temperature is April (13.2 °C). Overall, the average water temperature over the whole year is 14.8 °C.
The wettest month, with the highest amount of precipitation, is January (40.5 mm). The driest month, with the least amount of precipitation, is August (2 mm). Over the whole year there are 195.7 mm of rainfall on average.
The month with the most days of rain is March (7.3 days). The month with the fewest days of rain is June (1.3 days). Over the whole year there are 43.8 days of rain on average.
The month with the highest average relative humidity is March (65 %). The month with the lowest average relative humidity is October (55.2 %). The overall average relative humidity over the whole year is 59.9 %.
The windiest month, with the highest average wind speed, is April (13.2 km/h). The calmest month, with the lowest average wind speed, is July (9 km/h). The overall average wind speed over the whole year is 10.8 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is March (23.1 %). The month with the clearest skies, so the lowest cloud coverage, is August (3.9 %). Over the whole year there is an average cloud coverage of 13.6 %.
The month with the longest days, so the most daylight, is June (Average daylight: 14 h). The month with the shortest days, so the least daylight, is December (Average daylight: 9.1 h). Over the whole year there are 11.9 h of daylight per day on average.
The month with the most sunshine per day is June (Average sunshine: 12.1 h). The month with the least sunshine per day is February (Average sunshine: 6 h). Over the whole year there are 9.1 h of sunlight per day on average.
The months with the highest average UV index are June, July, August and September (UV index: 6). The months with the lowest average UV index are January, February, March, November and December (UV index: 4). Over the whole year the average UV index is 4.9.
