CannaGLAP

Grow cannabis in Redondo Beach, CA

Growing cannabis in Redondo Beach: a cool beach summer and air that stays damp

Summer in Redondo Beach stays cool. August, the warmest month, averages a 77°F high and a 63°F low, and a typical year brings about 4 afternoons at 90°F. Heat rarely sets the terms for a grow here.

Moisture does. Humidity averaged 77 to 79 percent in all six months measured in 2024. If the weather almost never makes you run an air conditioner, what in your setup is pulling water out of the air?

California home grow rules (as of October 2026)

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.

A Redondo Beach grow room built around water, not heat

In a hot inland town, an air conditioner dries a grow room as a side effect, because it pulls water out while it cools. A tent near Riviera Village or in a garage by the harbor seldom needs one, so that help never arrives. The dehumidifier is left doing the drying on its own. Size it for the room the tent breathes from, and aim for about 45 to 50 percent in late flower.

The mild weather leaves the light schedule up to you. At the Redondo Beach station, 1.3 miles from the city center, August nights average near 63°F and afternoons near 77°F, so a lamp-warmed tent usually has room to spare in daylight hours. What matters more is the moment the lamp shuts off: the tent cools, its humidity climbs, and that is when wet leaves and gray mold can get a start. Keep the dehumidifier and a circulation fan running through the whole dark period.

The few hot afternoons cluster late: October averages about 2 of the station's roughly 4 a year, when a plant can be in its final weeks. If a warm spell arrives then, shift the lamp to the night hours until it passes.

Winter asks little. December and January lows sit near 47°F, and the station records a freezing night about once in ten years. A heated house dries January's 77 percent outdoor air; an unheated garage keeps it, so pair a small heater with the dehumidifier there.

Heater safety: use one with tip-over and overheat shutoff, plug it straight into a wall outlet (not an extension cord or power strip), and keep it a few feet from tent fabric and plants.

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F676666687072767776747166
Avg low °F474850525658626362575147
Humidity %777879787778

Highs and lows: NOAA 1991 to 2020 normals, Redondo Beach station (1.3 miles away). Humidity: Open-Meteo historical model data, average daily humidity in 2024, for the months shown. Planning averages, not a forecast.

Outdoors in the South Bay

State law caps a private residence at 6 living plants, no matter how many adults share it, and they must grow in a locked space that cannot be seen from a public place. Cities and counties can set reasonable rules for indoor grows, though they cannot ban them, and they may ban outdoor grows, so check Redondo Beach's rules before planting outside.

Where it is allowed, start seeds indoors March 4 to March 18 and set plants out from April 15. Nights average 50°F or warmer from March 17 to November 23, so cold does not end this season; damp does. Buds ripening in September and October sit in air near 77 to 78 percent, so choose airy, mold-resistant plants, keep the inside of each plant open, and check the biggest colas after still mornings.

FrostRare: less than 1 freezing night a year on average
Nights stay 50°F or warmerMar 17 to Nov 23
Start seeds or clones indoorsMar 4 to Mar 18
Move plants outdoorsApr 15 or later

A Redondo Beach grow, kept off the record

Redondo Beach has plenty of places to be outside: the Thursday farmers market by the pier, the shops and restaurants of Riviera Village, the walk along the harbor. On a close street, a dehumidifier humming in a garage every night is something a neighbor can hear. What you write about the grow behind it is a separate matter.

Your grow journal is encrypted on your own phone by Canna GLAP before anything is uploaded. Break into our servers and you would leave with grow records in scrambled form and no key to read them. It cannot quiet a fan or hide a smell, but the humidity settings that saved your October harvest stay locked under your passphrase.

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 Redondo Beach ask

Do I need air conditioning to grow cannabis in Redondo Beach?

Usually not for heat: August averages a 77°F high, and the station counts about 4 afternoons a year at 90°F. A dehumidifier is the more useful machine, since humidity averaged 77 to 79 percent in every month measured in 2024.

Does Redondo Beach get frost?

Almost never. The Redondo Beach station records a freezing night about once in ten years, and nights average 45°F or warmer in every month.

When can I plant cannabis outside in Redondo Beach?

From April 15, after starting seeds indoors March 4 to March 18, if local rules allow outdoor plants. Keep them secured under lock and out of sight of the public, 6 living plants per residence at most.

Growing near Redondo Beach

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