San Diego weather in April: San Diego, California: normal highs, lows, rain and records for April
San Diego in April has a normal high of 69°F and a normal low of 57°F, a daily mean of 63°F, rising from 68°F on the 1st to 69°F by the 30th. Measurable precipitation falls on 4 days in a normal April, 0.65 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 14°C, 17 mm of precipitation in April.
- NOAA stationSan Diego Lindbergh Field
- Station IDUSW00023188
- Location32.73°N 117.18°W
- Elevation15 ft (5 m)
- From the center6 miles
- Population1,404,452
- Jan 66° 50°
- Feb 66° 52°
- Mar 67° 55°
- Apr 69° 57°
- May 70° 60°
- Jun 72° 63°
- Jul 75° 66°
- Aug 77° 68°
- Sep 77° 66°
- Oct 75° 62°
- Nov 71° 55°
- Dec 66° 50°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is San Diego in April?
The normal high is 69°F and the normal low 57°F, for a daily mean of 62.9°F. April is 2.2°F warmer than March and 1.9°F cooler than May. April is the 7th warmest month of the year in San Diego and the 6th wettest. Across the month the normal high rises 1°F, from 68°F on April 1 to 69°F on April 30. From one year to the next April's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 61°F and 65°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 16%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 68°F | 56°F | 16% | 8% |
| April 8 | 68°F | 56°F | 14% | 7% |
| April 15 | 69°F | 57°F | 13% | 6% |
| April 22 | 69°F | 58°F | 11% | 5% |
| April 30 | 69°F | 59°F | 10% | 4% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 28, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 68°F | 56°F | 16% | 8% | 12 h 30 min |
| April 2 | 68°F | 56°F | 15% | 8% | 12 h 30 min |
| April 3 | 68°F | 56°F | 15% | 8% | 12 h 30 min |
| April 4 | 68°F | 56°F | 15% | 8% | 12 h 40 min |
| April 5 | 68°F | 56°F | 15% | 7% | 12 h 40 min |
| April 6 | 68°F | 56°F | 15% | 7% | 12 h 40 min |
| April 7 | 68°F | 56°F | 14% | 7% | 12 h 40 min |
| April 8 | 68°F | 56°F | 14% | 7% | 12 h 40 min |
| April 9 | 69°F | 57°F | 14% | 7% | 12 h 50 min |
| April 10 | 69°F | 57°F | 14% | 7% | 12 h 50 min |
| April 11 | 69°F | 57°F | 14% | 7% | 12 h 50 min |
| April 12 | 69°F | 57°F | 13% | 6% | 12 h 50 min |
| April 13 | 69°F | 57°F | 13% | 6% | 12 h 50 min |
| April 14 | 69°F | 57°F | 13% | 6% | 13 h |
| April 15 | 69°F | 57°F | 13% | 6% | 13 h |
| April 16 | 69°F | 57°F | 12% | 6% | 13 h |
| April 17 | 69°F | 57°F | 12% | 6% | 13 h |
| April 18 | 69°F | 57°F | 12% | 5% | 13 h |
| April 19 | 69°F | 57°F | 12% | 5% | 13 h |
| April 20 | 69°F | 58°F | 12% | 5% | 13 h 10 min |
| April 21 | 69°F | 58°F | 11% | 5% | 13 h 10 min |
| April 22 | 69°F | 58°F | 11% | 5% | 13 h 10 min |
| April 23 | 69°F | 58°F | 11% | 5% | 13 h 10 min |
| April 24 | 69°F | 58°F | 11% | 5% | 13 h 10 min |
| April 25 | 69°F | 58°F | 11% | 5% | 13 h 20 min |
| April 26 | 69°F | 58°F | 10% | 4% | 13 h 20 min |
| April 27 | 69°F | 58°F | 10% | 4% | 13 h 20 min |
| April 28 | 69°F | 58°F | 10% | 4% | 13 h 20 min |
| April 29 | 69°F | 58°F | 10% | 4% | 13 h 20 min |
| April 30 | 69°F | 59°F | 10% | 4% | 13 h 20 min |
- Normal high
- 69°FApril average
- Normal low
- 57°FApril average
- Precipitation
- 0.65 inmonth total
- Days with precipitation
- 40.01 inch or more
- Daylight
- 12 h 30 min to 13 h 20 minApril 1 to April 30
- Days at 70°F or more
- 9
- Days at 80°F or more
- 2
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023188; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in San Diego in April?
On a given April day the chance of 0.01 inch or more is 13% on average, highest around April 1 (16%). In all, 0.65 in falls on 4 days of a normal April.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023188.
How humid and windy is San Diego in April?
At 3 p.m. the normal temperature is 67°F with 58% relative humidity and a dew point of 52°F; at 6 a.m. it is 60°F with 74% humidity. The wind averages 7.1 mph, most often from the west in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 60°F | 52°F | 74% | 4.8 mph | 26% |
| 9 a.m. | 65°F | 51°F | 62% | 6.9 mph | 37% |
| noon | 68°F | 52°F | 57% | 10.7 mph | 49% |
| 3 p.m. | 67°F | 52°F | 58% | 10.9 mph | 50% |
| 6 p.m. | 65°F | 53°F | 65% | 8.7 mph | 41% |
| 9 p.m. | 63°F | 53°F | 71% | 5.5 mph | 43% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023188. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in San Diego?
The warmest April temperature on San Diego's official record (since 1874) is 98°F, on April 6, 1989; the coldest is 39°F, on April 7, 1875. The wettest April brought 5.37 in (1926).
The April mean against the 1991-2020 normal of 62.9°F: 2021 63.8°F (+0.9), 2022 62.4°F (−0.5), 2023 60.2°F (−2.7), 2024 60.9°F (−2.0), 2025 61.8°F (−1.1), 2026 64.0°F (+1.1). 2 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 63.8°F | +0.9°F | 0.07 in |
| 2022 | 62.4°F | −0.5°F | 0.02 in |
| 2023 | 60.2°F | −2.7°F | 0.12 in |
| 2024 | 60.9°F | −2.0°F | 0.16 in |
| 2025 | 61.8°F | −1.1°F | 0.22 in |
| 2026 | 64.0°F | +1.1°F | 0.23 in |
Source: records: ACIS, NWS threaded record SANthr; recent months: ACIS, station USW00023188. Records and recent months use complete months only.
How does April in San Diego compare across California?
Across the 219 places PlainClimate covers in California, April normal highs run from 49°F in Tahoma to 87°F in Brawley; San Diego's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.