Oceanside weather by month
Warmest month
August
81°F (27°C) average high
Coolest month
February
49°F (9°C) average low
Wettest month
March
2.4 in (60 mm) of rain
Driest month
September
0.3 in (7 mm) of rain
Average temperature and rainfall in Oceanside by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 67°F | 50°F | 34°F / 90°F | 1.8 in | 70% | 5 mph |
| February | 67°F | 49°F | 36°F / 85°F | 1.6 in | 71% | 6 mph |
| March | 67°F | 52°F | 42°F / 78°F | 2.4 in | 76% | 6 mph |
| April | 69°F | 54°F | 44°F / 86°F | 0.9 in | 73% | 6 mph |
| May | 70°F | 58°F | 51°F / 97°F | 0.9 in | 75% | 7 mph |
| June | 74°F | 61°F | 57°F / 83°F | 0.6 in | 80% | 6 mph |
| July | 80°F | 65°F | 60°F / 91°F | 0.3 in | 79% | 6 mph |
| August | 81°F | 66°F | 59°F / 93°F | 0.3 in | 79% | 5 mph |
| September | 80°F | 66°F | 55°F / 97°F | 0.3 in | 76% | 6 mph |
| October | 78°F | 61°F | 51°F / 100°F | 0.6 in | 72% | 5 mph |
| November | 73°F | 54°F | 42°F / 87°F | 0.9 in | 68% | 6 mph |
| December | 66°F | 50°F | 38°F / 78°F | 1.8 in | 71% | 6 mph |
Frost and snow-likely months in Oceanside
No month in Oceanside averages a night of 36°F (2°C) or below. The coldest month is February with an average low of 49°F (9°C) and a record low of 36°F (2°C), so frost is rare and snow is very unlikely.
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Oceanside
The most comfortable time to visit Oceanside is generally June and October to November, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around March, totalling about 12 in (306 mm) a year.
Travellers who prefer heat should aim for August, when highs average 81°F (27°C). March is the month to avoid if rain would spoil your plans — it averages 2.4 in (60 mm), roughly 8× the rainfall of the driest month (September).
Oceanside climate: your questions
Is it going to snow in Oceanside this year?
No: the coldest month in Oceanside is February with an average low of 49°F (9°C) and a record low of 36°F (2°C), so snow is very unlikely. What is falling now: Oceanside weather today.
When is the best time to visit Oceanside?
June and October to November are the most comfortable months in Oceanside, with highs near 75°F (24°C). August is the warmest month, averaging 81°F (27°C) by day; March is the wettest, with 2.4 in (60 mm); and February is the coolest, with lows near 49°F (9°C). What it is doing today: Oceanside weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Oceanside forecast for what is happening now.
Weather across United States right now
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