CannaGLAP
Grow cannabis in San Clemente, CA
Growing cannabis in San Clemente: the damp holds from midsummer through harvest
San Clemente's air does not dry out for harvest. In 2024, humidity averaged 80 percent in June, 82 in July, 80 in August, 77 in September and 75 in October.
From June through harvest and drying, plants live in damp air here. Are you managing moisture through the whole grow, or only in the last two weeks?
Adults 21 and over: yes. Plant limit: 6 living plants per private residence, however many adults live there.
Locked space, not visible from a public place; cities and counties can set reasonable rules for indoor grows (but cannot ban them) and may ban outdoor grows; a landlord may prohibit growing on a rental. Source: Department of Cannabis Control; conditions: Prop 64 text as passed in 2016 (H&S Code 11362.2 and 11362.45). Local rules (landlords, HOAs, city codes) can add more; this is a summary, not legal advice.
Flowering, drying and curing in San Clemente air
Temperature is the easy part. The nearest station, in Laguna Beach, sits 12.7 miles away, far enough that your own thermometer counts for more than its table, but it shows a gentle year: highs from 67°F in December to 81°F in August and September, nights from 44°F to 61°F, and only about 4 afternoons a year hitting 90°F. Heat will rarely be what goes wrong.
Moisture is the work. A garage or a room with the windows open breathes that damp summer air, and a closed room still gains water from the plants themselves. Run a dehumidifier through all of flower on a humidistat, strip the lower branches that never see good light, and keep a fan moving air under the canopy as well as over it. Give the lights-off hours the closest watch, since a cooling tent reads damper.
Drying is where damp air costs the most. Even October stayed damp, and buds hung in a garage open to that air can dry slowly and unevenly, inviting mold before they are ready for jars. Dry in a closed room with the dehumidifier running, aim for about 60 percent, then check the jars daily through the first week of the cure.
Winter is mild. December and January nights average about 44°F, freezing comes about once a year, and January's 72 percent outdoor reading drops inside a heated home. A seedling mat helps young plants through cool nights.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 68 | 68 | 69 | 73 | 75 | 76 | 80 | 81 | 81 | 77 | 72 | 67 |
| Avg low °F | 44 | 45 | 48 | 50 | 55 | 58 | 60 | 61 | 59 | 55 | 49 | 44 |
| Humidity % | 72 | 80 | 82 | 80 | 77 | 75 |
Highs and lows: NOAA 1991 to 2020 normals, Laguna Beach station (12.7 miles away). Humidity: Open-Meteo historical model data, average daily humidity in 2024, for the months shown. Planning averages, not a forecast.
Planting out in San Clemente
A private residence in California can have up to 6 living plants, no matter how many adults live there, and they have to be locked up where the public cannot see them. Cities and counties can set reasonable rules for indoor grows, though not ban them, and may ban outdoor grows altogether. San Clemente's code is worth reading first.
Where outdoor plants are allowed, seeds started March 4 to March 18 can be planted out once April 15 comes. Frost is rare, about 1 freezing night a year at the station. Mold is the limit. An earlier-finishing variety buys nothing here, since September was damper than October, so choose on mold resistance instead: airy buds, an open center, room between plants, and a close look inside the densest colas after damp mornings.
| Frost | Rare: about 1 freezing nights a year |
|---|---|
| Nights stay 50°F or warmer | Apr 14 to Nov 8 |
| Start seeds or clones indoors | Mar 4 to Mar 18 |
| Move plants outdoors | Apr 15 or later |
What stays between you and your San Clemente grow
San Clemente does a lot of its living in public: the Sunday Farmers Market on Avenida Del Mar, the San Clemente Ocean Festival, evenings out by the pier. Gardeners talk in crowds like those, and a grower who has beaten the October damp gets asked how.
Every Canna GLAP grow entry is encrypted on your own phone before it uploads. Breaking into our servers would yield unreadable grow records and nothing that decodes them, so your drying-room numbers stay yours to share or not. The encryption stops at the journal, though: the smell of a drying room is a carbon filter's job.
What is encrypted: your plants, notes, photos, feed logs and harvests. What is not: account details (such as your email, name and plan), a grow name or town if you type one, your team, and your sensors' names. The full list: what a hacker would get.
Questions growers in San Clemente ask
Do I need a dehumidifier to grow cannabis in San Clemente?
Usually, for all of flower and for drying, since every month from June to October was damp in 2024.
How should I dry a cannabis harvest in San Clemente?
Indoors, in a closed room with a dehumidifier, rather than a garage open to damp October air. Aim for about 60 percent in the drying room and check the buds daily.
Does San Clemente get frost?
Rarely. The Laguna Beach station, 12.7 miles away, averages about 1 freezing night a year, and December and January nights average about 44°F.
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