Skip to content
VSWeather

Arroyo Grande, CA vs San Luis Obispo, CA weather comparison

Arroyo Grande

CA

Arroyo Grande and San Luis Obispo have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Arroyo Grande, CA and San Luis Obispo, CA
Arroyo GrandeMetricSan Luis Obispo
295 daysSunny daysclear or partly cloudy skies293 days
17 inPrecipitationper year17 in
39 daysWet daysrain or snow per year39 days
0 inSnowfallper year0 in
8 daysHot daysabove 90 °F15 days
3 daysFreezing nightsat or below 32 °F5 days
74%Humidityaverage relative71%
60 °FAverage temperatureyear round60 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

Arroyo GrandeSan Luis Obispo

Daily highs

65707580JanMarMayJulSepNovArroyo Grande, Jan: 65 °FArroyo Grande, Feb: 65 °FArroyo Grande, Mar: 67 °FArroyo Grande, Apr: 69 °FArroyo Grande, May: 72 °FArroyo Grande, Jun: 73 °FArroyo Grande, Jul: 74 °FArroyo Grande, Aug: 75 °FArroyo Grande, Sep: 75 °FArroyo Grande, Oct: 74 °FArroyo Grande, Nov: 70 °FArroyo Grande, Dec: 65 °FSan Luis Obispo, Jan: 65 °FSan Luis Obispo, Feb: 65 °FSan Luis Obispo, Mar: 67 °FSan Luis Obispo, Apr: 69 °FSan Luis Obispo, May: 72 °FSan Luis Obispo, Jun: 75 °FSan Luis Obispo, Jul: 78 °FSan Luis Obispo, Aug: 79 °FSan Luis Obispo, Sep: 79 °FSan Luis Obispo, Oct: 77 °FSan Luis Obispo, Nov: 71 °FSan Luis Obispo, Dec: 65 °F

Daily lows

455055JanMarMayJulSepNovArroyo Grande, Jan: 43 °FArroyo Grande, Feb: 44 °FArroyo Grande, Mar: 46 °FArroyo Grande, Apr: 47 °FArroyo Grande, May: 49 °FArroyo Grande, Jun: 51 °FArroyo Grande, Jul: 54 °FArroyo Grande, Aug: 55 °FArroyo Grande, Sep: 54 °FArroyo Grande, Oct: 52 °FArroyo Grande, Nov: 46 °FArroyo Grande, Dec: 43 °FSan Luis Obispo, Jan: 42 °FSan Luis Obispo, Feb: 43 °FSan Luis Obispo, Mar: 45 °FSan Luis Obispo, Apr: 46 °FSan Luis Obispo, May: 49 °FSan Luis Obispo, Jun: 51 °FSan Luis Obispo, Jul: 54 °FSan Luis Obispo, Aug: 55 °FSan Luis Obispo, Sep: 54 °FSan Luis Obispo, Oct: 51 °FSan Luis Obispo, Nov: 46 °FSan Luis Obispo, Dec: 42 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Arroyo Grande high656567697273747575747065
San Luis Obispo high656567697275787979777165
Arroyo Grande low434446474951545554524643
San Luis Obispo low424345464951545554514642

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

Arroyo GrandeSan Luis Obispo
0.02.04.0JanMarMayJulSepNovArroyo Grande, Jan: 3.8 inArroyo Grande, Feb: 3.6 inArroyo Grande, Mar: 2.8 inArroyo Grande, Apr: 1.0 inArroyo Grande, May: 0.4 inArroyo Grande, Jun: 0.1 inArroyo Grande, Jul: 0.0 inArroyo Grande, Aug: 0.0 inArroyo Grande, Sep: 0.0 inArroyo Grande, Oct: 0.8 inArroyo Grande, Nov: 1.4 inArroyo Grande, Dec: 2.8 inSan Luis Obispo, Jan: 3.9 inSan Luis Obispo, Feb: 3.7 inSan Luis Obispo, Mar: 2.8 inSan Luis Obispo, Apr: 1.0 inSan Luis Obispo, May: 0.4 inSan Luis Obispo, Jun: 0.1 inSan Luis Obispo, Jul: 0.0 inSan Luis Obispo, Aug: 0.0 inSan Luis Obispo, Sep: 0.0 inSan Luis Obispo, Oct: 0.8 inSan Luis Obispo, Nov: 1.3 inSan Luis Obispo, Dec: 3.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Arroyo Grande3.83.62.81.00.40.10.00.00.00.81.42.8
San Luis Obispo3.93.72.81.00.40.10.00.00.00.81.33.0

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

Arroyo GrandeSan Luis Obispo
0102030JanMarMayJulSepNovArroyo Grande, Jan: 19 daysArroyo Grande, Feb: 18 daysArroyo Grande, Mar: 21 daysArroyo Grande, Apr: 24 daysArroyo Grande, May: 26 daysArroyo Grande, Jun: 28 daysArroyo Grande, Jul: 29 daysArroyo Grande, Aug: 30 daysArroyo Grande, Sep: 29 daysArroyo Grande, Oct: 27 daysArroyo Grande, Nov: 24 daysArroyo Grande, Dec: 21 daysSan Luis Obispo, Jan: 19 daysSan Luis Obispo, Feb: 18 daysSan Luis Obispo, Mar: 21 daysSan Luis Obispo, Apr: 24 daysSan Luis Obispo, May: 26 daysSan Luis Obispo, Jun: 28 daysSan Luis Obispo, Jul: 29 daysSan Luis Obispo, Aug: 30 daysSan Luis Obispo, Sep: 29 daysSan Luis Obispo, Oct: 27 daysSan Luis Obispo, Nov: 23 daysSan Luis Obispo, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Arroyo Grande191821242628293029272421
San Luis Obispo191821242628293029272321

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Arroyo Grande vs another city

See the full Arroyo Grande, CA climate profile

More California cities

San Luis Obispo vs another city

See the full San Luis Obispo, CA climate profile

More California cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. 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).