Oceanside weather in March: Oceanside, California: normal highs, lows, rain and records for March
Oceanside in March has a normal high of 66°F and a normal low of 46°F, a daily mean of 56°F, rising from 66°F on the 1st to 68°F by the 31st. Measurable precipitation falls on 8 days in a normal March, 1.68 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 8°C, 43 mm of precipitation in March.
- 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 March?
The normal high is 66°F and the normal low 46°F, for a daily mean of 56.2°F. March is 2.1°F warmer than February and 2.1°F cooler than April. March is the 9th warmest month of the year in Oceanside and the 4th wettest. Across the month the normal high rises 2°F, from 66°F on March 1 to 68°F on March 31. From one year to the next March's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 54°F and 58°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 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 66°F | 45°F | 32% | 15% |
| March 8 | 66°F | 46°F | 29% | 13% |
| March 15 | 66°F | 47°F | 26% | 11% |
| March 22 | 67°F | 47°F | 24% | 9% |
| March 31 | 68°F | 47°F | 20% | 7% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 66°F | 45°F | 32% | 15% | 11 h 30 min |
| March 2 | 66°F | 45°F | 31% | 15% | 11 h 30 min |
| March 3 | 66°F | 45°F | 31% | 15% | 11 h 30 min |
| March 4 | 66°F | 45°F | 31% | 14% | 11 h 30 min |
| March 5 | 66°F | 45°F | 30% | 14% | 11 h 30 min |
| March 6 | 66°F | 46°F | 30% | 14% | 11 h 40 min |
| March 7 | 66°F | 46°F | 30% | 14% | 11 h 40 min |
| March 8 | 66°F | 46°F | 29% | 13% | 11 h 40 min |
| March 9 | 66°F | 46°F | 29% | 13% | 11 h 40 min |
| March 10 | 66°F | 46°F | 28% | 13% | 11 h 40 min |
| March 11 | 66°F | 46°F | 28% | 12% | 11 h 50 min |
| March 12 | 66°F | 46°F | 28% | 12% | 11 h 50 min |
| March 13 | 66°F | 46°F | 27% | 12% | 11 h 50 min |
| March 14 | 66°F | 46°F | 27% | 11% | 11 h 50 min |
| March 15 | 66°F | 47°F | 26% | 11% | 12 h |
| March 16 | 66°F | 47°F | 26% | 11% | 12 h |
| March 17 | 66°F | 47°F | 26% | 11% | 12 h |
| March 18 | 66°F | 47°F | 25% | 10% | 12 h |
| March 19 | 66°F | 47°F | 25% | 10% | 12 h |
| March 20 | 67°F | 47°F | 24% | 10% | 12 h 10 min |
| March 21 | 67°F | 47°F | 24% | 9% | 12 h 10 min |
| March 22 | 67°F | 47°F | 24% | 9% | 12 h 10 min |
| March 23 | 67°F | 47°F | 23% | 9% | 12 h 10 min |
| March 24 | 67°F | 47°F | 23% | 9% | 12 h 10 min |
| March 25 | 67°F | 47°F | 22% | 8% | 12 h 20 min |
| March 26 | 67°F | 47°F | 22% | 8% | 12 h 20 min |
| March 27 | 67°F | 47°F | 21% | 8% | 12 h 20 min |
| March 28 | 67°F | 47°F | 21% | 8% | 12 h 20 min |
| March 29 | 68°F | 47°F | 21% | 7% | 12 h 20 min |
| March 30 | 68°F | 47°F | 20% | 7% | 12 h 30 min |
| March 31 | 68°F | 47°F | 20% | 7% | 12 h 30 min |
- Normal high
- 66°FMarch average
- Normal low
- 46°FMarch average
- Precipitation
- 1.68 inmonth total
- Days with precipitation
- 80.01 inch or more
- Daylight
- 11 h 30 min to 12 h 30 minMarch 1 to March 31
- Days at 70°F or more
- 7
- Days at 80°F or more
- 2
- Sunshine
- 85%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 March?
On a given March day the chance of 0.01 inch or more is 26% on average, highest around March 1 (32%). In all, 1.68 in falls on 8 days of a normal March.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053121.
What are the records for March in Oceanside?
The warmest March temperature on this station's record (since 1999) is 92°F, on March 15, 2015; the coldest is 29°F, on March 2, 2021. The wettest March brought 6.42 in (2023).
The March mean against the 1991-2020 normal of 56.2°F: 2021 53.0°F (−3.3), 2022 56.9°F (+0.7), 2023 53.9°F (−2.4), 2024 56.4°F (+0.1), 2025 54.5°F (−1.7), 2026 62.0°F (+5.8). 3 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.0°F | −3.3°F | 2.01 in |
| 2022 | 56.9°F | +0.7°F | 1.21 in |
| 2023 | 53.9°F | −2.4°F | 6.42 in |
| 2024 | 56.4°F | +0.1°F | 2.76 in |
| 2025 | 54.5°F | −1.7°F | 3.41 in |
| 2026 | 62.0°F | +5.8°F | 0.02 in |
Source: records: ACIS, station USW00053121; recent months: ACIS, station USW00053121. Records and recent months use complete months only.
How does March in Oceanside compare across California?
Across the 219 places PlainClimate covers in California, March normal highs run from 43°F in Tahoma to 81°F in Brawley; Oceanside's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.