Climate averages 1991–2020
Santa Barbara weather
in April.
A warm, fairly dry month: the 7th warmest and the 7th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in Santa Barbara: daytime highs average 22.7°C and nights cool to about 11.8°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 24 mm of rain on roughly 3 days, which makes April a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 01 min on an average April day.
The nearest other city in this atlas is Ventura (40 km away). In April its highs average 20.0°C, 2.7°C cooler than Santa Barbara, with 22 mm of rain.
Among the 498 cities listed in the United States, Santa Barbara ranks joint 131st of 498 for the warmest April highs and joint 65th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Santa Barbara is 3.3°C warmer than that mean.
From April to May, average highs rise by 2.4°C to 25.1°C, and monthly rainfall falls from 24 mm to 10 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Santa Barbara climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.1°C9.2°C | 9.2°C | 93 | 6.2 | 10.110 h |
| February | 19.0°C9.3°C | 9.3°C | 94 | 6.7 | 10.911 h |
| March | 20.6°C10.3°C | 10.3°C | 70 | 5.8 | 11.912 h |
| April, selected | 22.7°C11.8°C | 11.8°C | 24 | 3.0 | 13.013 h |
| May | 25.1°C14.3°C | 14.3°C | 10 | 1.8 | 13.914 h |
| June | 27.9°C17.0°C | 17.0°C | 2.0 | 0.5 | 14.414 h |
| July | 30.0°C19.9°C | 19.9°C | 2.7 | 0.7 | 14.214 h |
| August | 30.7°C20.4°C | 20.4°C | 0.8 | 0.2 | 13.413 h |
| September | 29.6°C18.8°C | 18.8°C | 2.3 | 0.5 | 12.412 h |
| October | 26.4°C15.5°C | 15.5°C | 18 | 1.9 | 11.311 h |
| November | 22.4°C11.9°C | 11.9°C | 26 | 3.0 | 10.410 h |
| December | 18.9°C9.1°C | 9.1°C | 61 | 5.1 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Ventura in AprilUnited States · 40 kmHigh 20.0°C · Low 10.3°C · 22 mm rain
- Oxnard in AprilUnited States · 54 kmHigh 18.6°C · Low 11.0°C · 22 mm rain
- Thousand Oaks in AprilUnited States · 84 kmHigh 20.9°C · Low 10.0°C · 22 mm rain
- Simi Valley in AprilUnited States · 86 kmHigh 21.7°C · Low 9.7°C · 22 mm rain
- Santa Maria, United States in AprilUnited States · 90 kmHigh 20.0°C · Low 9.7°C · 26 mm rain
- Valencia, United States in AprilUnited States · 100 kmHigh 22.7°C · Low 9.2°C · 21 mm rain
- Santa Clarita in AprilUnited States · 106 kmHigh 22.3°C · Low 9.1°C · 21 mm rain
- Bakersfield in AprilUnited States · 123 kmHigh 22.6°C · Low 10.1°C · 27 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Santa Barbara) is explained once on the Santa Barbara year overview and on the Sources, method and limits page.