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Los Osos, CA weather and climate

San Luis Obispo County, CA · population 15,048 · about 194 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Los Osos's own coordinates.

The year at a glance

Sunny days
293
clear or partly cloudy, per year
Precipitation
17 in
per year
Wet days
39
rain or snow per year
Snowfall
0 in
per year
Hot days
5
above 90 °F
Freezing nights
3
at or below 32 °F
Humidity
73%
average relative
Average temperature
60 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
506070JanMarMayJulSepNovDaily high, Jan: 65 °FDaily high, Feb: 65 °FDaily high, Mar: 66 °FDaily high, Apr: 68 °FDaily high, May: 68 °FDaily high, Jun: 69 °FDaily high, Jul: 70 °FDaily high, Aug: 72 °FDaily high, Sep: 74 °FDaily high, Oct: 74 °FDaily high, Nov: 70 °FDaily high, Dec: 65 °FDaily low, Jan: 45 °FDaily low, Feb: 47 °FDaily low, Mar: 48 °FDaily low, Apr: 48 °FDaily low, May: 51 °FDaily low, Jun: 53 °FDaily low, Jul: 56 °FDaily low, Aug: 56 °FDaily low, Sep: 55 °FDaily low, Oct: 53 °FDaily low, Nov: 49 °FDaily low, Dec: 45 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high656566686869707274747065
Daily low454748485153565655534945

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovLos Osos, Jan: 3.9 inLos Osos, Feb: 3.7 inLos Osos, Mar: 2.8 inLos Osos, Apr: 1.0 inLos Osos, May: 0.4 inLos Osos, Jun: 0.1 inLos Osos, Jul: 0.0 inLos Osos, Aug: 0.0 inLos Osos, Sep: 0.0 inLos Osos, Oct: 0.8 inLos Osos, Nov: 1.3 inLos Osos, Dec: 3.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Los Osos3.93.72.81.00.40.10.00.00.00.81.33.0

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovLos Osos, Jan: 19 daysLos Osos, Feb: 18 daysLos Osos, Mar: 21 daysLos Osos, Apr: 24 daysLos Osos, May: 26 daysLos Osos, Jun: 28 daysLos Osos, Jul: 29 daysLos Osos, Aug: 30 daysLos Osos, Sep: 29 daysLos Osos, Oct: 27 daysLos Osos, Nov: 23 daysLos Osos, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Los Osos191821242628293029272321

Compare Los Osos with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered California city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).