Climate averages 1991–2020

Oxnard weather
in August.

A warm, very dry month: the warmest and the driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 24.8°C Daytime mean, August
Average low 17.8°C Night-time mean, August
Rainfall <1 mm Almost no rain
Daylight 13 h Sunrise to sunset, per day
Every month in Oxnard · average highYear overview

August is a warm month in Oxnard: daytime highs average 24.8°C and nights cool to about 17.8°C. By daytime temperature it is the warmest month of the year.

Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 26 min on an average August day.

The nearest other city in this atlas is Ventura (14 km away). In August its highs average 26.6°C, 1.8°C warmer than Oxnard, with almost no rain (under 1 mm).

Among the 498 cities listed in the United States, Oxnard ranks joint 471st of 498 for the warmest August highs and joint 2nd of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Oxnard is 5.1°C cooler than that mean.

From August to September, average highs fall by 0.5°C to 24.3°C, and monthly rainfall rises from under 1 mm to 3.1 mm.

The annual picture

August in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 51015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Oxnard climate table

1991–2020
Monthly climate averages for Oxnard, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 16.6°C8.9°C8.9°C935.610.110 h
February 16.5°C9.0°C9.0°C956.110.911 h
March 17.3°C9.9°C9.9°C675.111.912 h
April 18.6°C11.0°C11.0°C222.813.013 h
May 19.9°C13.0°C13.0°C9.91.513.914 h
June 21.8°C15.0°C15.0°C1.40.314.414 h
July 23.9°C17.2°C17.2°C2.30.414.214 h
August, selected 24.8°C17.8°C17.8°C0.30.113.413 h
September 24.3°C17.2°C17.2°C3.10.512.412 h
October 22.4°C15.0°C15.0°C181.911.411 h
November 19.6°C11.8°C11.8°C232.810.410 h
December 16.6°C9.1°C9.1°C584.99.910 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

August in nearby cities

Distance from Oxnard

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Oxnard) is explained once on the Oxnard year overview and on the Sources, method and limits page.

Ventura lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.