Oceanside weather in April: Oceanside, California: normal highs, lows, rain and records for April
Oceanside in April has a normal high of 69°F and a normal low of 48°F, a daily mean of 58°F, rising from 68°F on the 1st to 70°F by the 30th. Measurable precipitation falls on 5 days in a normal April, 0.87 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 9°C, 22 mm of precipitation in April.
- NOAA stationOceanside Municipal Airport
- Station IDUSW00053121
- Location33.22°N 117.35°W
- Elevation28 ft (9 m)
- From the center3 miles
- Population170,941
- Jan 67° 41°
- Feb 66° 42°
- Mar 66° 46°
- Apr 69° 48°
- May 70° 54°
- Jun 73° 58°
- Jul 77° 62°
- Aug 78° 62°
- Sep 78° 59°
- Oct 75° 53°
- Nov 71° 44°
- Dec 66° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oceanside in April?
The normal high is 69°F and the normal low 48°F, for a daily mean of 58.3°F. April is 2.1°F warmer than March and 3.8°F cooler than May. April is the 7th warmest month of the year in Oceanside and the 5th wettest. Across the month the normal high rises 2°F, from 68°F on April 1 to 70°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 56°F and 60°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 20%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 68°F | 47°F | 20% | 7% |
| April 8 | 69°F | 47°F | 18% | 6% |
| April 15 | 69°F | 47°F | 16% | 5% |
| April 22 | 69°F | 48°F | 15% | 5% |
| April 30 | 70°F | 50°F | 14% | 4% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 25, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 68°F | 47°F | 20% | 7% | 12 h 30 min |
| April 2 | 68°F | 47°F | 20% | 7% | 12 h 30 min |
| April 3 | 68°F | 47°F | 19% | 7% | 12 h 30 min |
| April 4 | 68°F | 47°F | 19% | 7% | 12 h 40 min |
| April 5 | 68°F | 47°F | 19% | 6% | 12 h 40 min |
| April 6 | 68°F | 47°F | 18% | 6% | 12 h 40 min |
| April 7 | 68°F | 47°F | 18% | 6% | 12 h 40 min |
| April 8 | 69°F | 47°F | 18% | 6% | 12 h 40 min |
| April 9 | 69°F | 47°F | 18% | 6% | 12 h 50 min |
| April 10 | 69°F | 47°F | 18% | 6% | 12 h 50 min |
| April 11 | 69°F | 47°F | 17% | 6% | 12 h 50 min |
| April 12 | 69°F | 47°F | 17% | 6% | 12 h 50 min |
| April 13 | 69°F | 47°F | 17% | 6% | 12 h 50 min |
| April 14 | 69°F | 47°F | 17% | 5% | 13 h |
| April 15 | 69°F | 47°F | 16% | 5% | 13 h |
| April 16 | 69°F | 47°F | 16% | 5% | 13 h |
| April 17 | 69°F | 47°F | 16% | 5% | 13 h |
| April 18 | 69°F | 48°F | 16% | 5% | 13 h |
| April 19 | 69°F | 48°F | 16% | 5% | 13 h 10 min |
| April 20 | 69°F | 48°F | 15% | 5% | 13 h 10 min |
| April 21 | 69°F | 48°F | 15% | 5% | 13 h 10 min |
| April 22 | 69°F | 48°F | 15% | 5% | 13 h 10 min |
| April 23 | 69°F | 49°F | 15% | 5% | 13 h 10 min |
| April 24 | 69°F | 49°F | 15% | 5% | 13 h 20 min |
| April 25 | 70°F | 49°F | 14% | 4% | 13 h 20 min |
| April 26 | 70°F | 49°F | 14% | 4% | 13 h 20 min |
| April 27 | 70°F | 50°F | 14% | 4% | 13 h 20 min |
| April 28 | 70°F | 50°F | 14% | 4% | 13 h 20 min |
| April 29 | 70°F | 50°F | 14% | 4% | 13 h 20 min |
| April 30 | 70°F | 50°F | 14% | 4% | 13 h 30 min |
- Normal high
- 69°FApril average
- Normal low
- 48°FApril average
- Precipitation
- 0.87 inmonth total
- Days with precipitation
- 50.01 inch or more
- Daylight
- 12 h 30 min to 13 h 30 minApril 1 to April 30
- Days at 70°F or more
- 10
- Days at 80°F or more
- 2
- Sunshine
- 86%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053121; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oceanside in April?
On a given April day the chance of 0.01 inch or more is 16% on average, highest around April 1 (20%). In all, 0.87 in falls on 5 days of a normal April.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053121.
What are the records for April in Oceanside?
The warmest April temperature on this station's record (since 1999) is 92°F, on April 12, 2008; the coldest is 37°F, on April 1, 2000. The wettest April brought 4.77 in (2020).
The April mean against the 1991-2020 normal of 58.3°F: 2021 59.5°F (+1.2), 2022 59.6°F (+1.3), 2023 57.7°F (−0.6), 2024 58.5°F (+0.2), 2025 57.1°F (−1.2), 2026 60.9°F (+2.6). 4 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.5°F | +1.2°F | 0.09 in |
| 2022 | 59.6°F | +1.3°F | 0.13 in |
| 2023 | 57.7°F | −0.6°F | 0.11 in |
| 2024 | 58.5°F | +0.2°F | 0.45 in |
| 2025 | 57.1°F | −1.2°F | 0.04 in |
| 2026 | 60.9°F | +2.6°F | 0.77 in |
Source: records: ACIS, station USW00053121; recent months: ACIS, station USW00053121. Records and recent months use complete months only.
How does April in Oceanside 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; Oceanside's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.