Oceanside, CA weather in August
In August, Oceanside sees highs around 71°F and lows around 66°F: mild and dry. Rain is rare. Great for outdoor plans.
- Normal high
- 71°F
- Normal low
- 66°F
- Wet days
- 0
- 0.02 in total
- Muggy days
- 1
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 71°F | 72°F |
| Normal low | 66°F | 65°F |
| Chance of a wet day | 1% | 1% |
| Sunrise / sunset | 6:02 am / 7:49 pm | 6:23 am / 7:16 pm |
| Daylight | 13.8 h | 12.9 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 August day
- 6 am64°Fdew point 59°F
- 9 am75°Fdew point 61°F
- Noon80°Fdew point 61°F
- 3 pm78°Fdew point 61°F
- 6 pm72°Fdew point 61°F
- 9 pm66°Fdew point 60°F
NOAA hourly normals (local standard time) from Camp Pendleton MCAS (7 mi away); average wind 5 mph; clear or few clouds in 85% of daytime hours, mostly cloudy or overcast in 8%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F12 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more1 of 31
- Wet daysat least 0.01 in of rain or melted snow0 of 31
- Notable rainat least 0.10 in0 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 0.02 in; a dry August brings about 0.0 in and a wet one about 0.0 in (25th and 75th percentiles). Days with half an inch or more are rare.
How August varies from year to year
- Warmest August, 1991-20202018: average high 77°F
- Coolest August2010: average high 67°F
- Wettest August2007: 0.2 in
- Driest August1991: no measurable precipitation
- Highest reading91°F (August 12, 1991)
- Lowest reading52°F (August 19, 1995)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 70°F | 71°F | 71°F |
| Normal low | 65°F | 66°F | 64°F |
| Wet days | 1 | 0 | 1 |
| Comfortable days | 14 | 12 | 19 |
| Daylight | 14.1 h | 13.3 h | 12.4 h |
Highs change by +1°F from July and 0°F into September.
Nearby alternatives in August
- Warmer: Escondido, CA18 mi · high 89°F · 0 wet days
How Oceanside ranks in August
- Normal high365th warmest of 378 cities; 58th of 60 in California
- Wet days31st driest of 378
- Comfortable days49th most of 341
Heating and cooling
August has 4 heating degree days and 111 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Oceanside in August?
The normal high is 71°F and the normal low is 66°F. From 1991 to 2020 the hottest August reading was 91°F (August 12, 1991).
Does it rain a lot in Oceanside in August?
About 0 days in August have at least 0.01 in of precipitation, and the normal total is 0.02 in. The wettest August in 1991-2020 was in 2007 (0.2 in); the driest was in 1991, with no measurable precipitation.
Is August a good time to visit Oceanside?
August ranks 6th of 12 months on our comfort score for Oceanside (71 out of 100). It has about 12 comfortable days. The best months are June and October.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Oceanside Marina (USC00046377), 1.3 mi NW of the city center, 10 ft (60 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Oceanside Muni Airport (USW00053121), 2.4 mi NE of the city center, 28 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Camp Pendleton MCAS (USW00003154), 7.4 mi NNE of the city center, 75 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: March AFB (USW00023119), 49 mi N of the city center, 1,516 ft (1,446 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Marine Corps Air Station (722926-03154), 7.6 mi N of the city center, 70 ft . Hourly observations, 1991-2020.