San Diego, CA weather in April
Expect mild, mostly dry weather in San Diego in April, with highs near 69°F and lows near 57°F. Rain falls on about 4 days. Great for outdoor plans.
- Normal high
- 69°F
- Normal low
- 57°F
- Wet days
- 4
- 0.7 in total
- Muggy days
- 0
- dew point 65°F+
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 68°F | 69°F |
| Normal low | 56°F | 59°F |
| Chance of a wet day | 15% | 10% |
| Sunrise / sunset | 6:36 am / 7:08 pm | 6:02 am / 7:29 pm |
| Daylight | 12.5 h | 13.4 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical April day
- 6 am58°Fdew point 49°F
- 9 am63°Fdew point 49°F
- Noon66°Fdew point 50°F
- 3 pm66°Fdew point 50°F
- 6 pm63°Fdew point 51°F
- 9 pm61°Fdew point 51°F
NOAA hourly normals (local standard time) from San Diego Lindbergh Fld (2 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F20 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph2 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow4 of 30
- Notable rainat least 0.10 in2 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain in April
Normal precipitation is 0.7 in; a dry April brings about 0.1 in and a wet one about 0.9 in (25th and 75th percentiles). Days with half an inch or more are rare.
How April varies from year to year
- Warmest April, 1991-20201992: average high 73°F
- Coolest April2001: average high 64°F
- Wettest April2020: 3.7 in
- Driest April1993: no measurable precipitation
- Highest reading98°F (April 20, 2009)
- Lowest reading45°F (April 2, 1999)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 67°F | 69°F | 70°F |
| Normal low | 55°F | 57°F | 60°F |
| Wet days | 6 | 4 | 2 |
| Comfortable days | 17 | 20 | 25 |
| Daylight | 12.0 h | 13.0 h | 13.8 h |
Highs change by +2°F from March and +1°F into May.
Nearby alternatives in April
- Warmer: El Cajon, CA13 mi · high 75°F · 4 wet days
- Drier: Palm Springs, CA85 mi · high 87°F · 1 wet day
- Cooler: Oceanside, CA36 mi · high 63°F · 3 wet days
How San Diego ranks in April
- Normal high184th warmest of 378 cities; 44th of 60 in California
- Wet days47th driest of 378
- Comfortable days10th most of 340
Heating and cooling
April has 85 heating degree days and 23 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How cold is San Diego in April?
The normal high is 69°F and the normal low is 57°F. From 1991 to 2020 the coldest April reading was 45°F (most recently on April 2, 1999).
Does it rain a lot in San Diego in April?
About 4 days in April have at least 0.01 in of precipitation, and the normal total is 0.7 in. The wettest April in 1991-2020 was in 2020 (3.7 in); the driest was in 1993, with no measurable precipitation.
Is April a good time to visit San Diego?
April ranks 3rd of 12 months on our comfort score for San Diego (80 out of 100). It has about 20 comfortable days. The best months are May and June.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: San Diego Lindbergh Fld (USW00023188), 2.0 mi NW of the city center, 15 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Chula Vista (USC00041758), 6.7 mi SE of the city center, 56 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: San Diego International Airport (722900-23188), 2.0 mi NW of the city center, 15 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).