How Long Does a Cannabis High Last?

How long you'll feel cannabis depends almost entirely on how you consumed it. A hit off a joint can be fully absorbed in 90 minutes. A brownie you ate at dinner can still be affecting you at bedtime. A tincture sits somewhere in between. This guide breaks down exact timelines for each method — onset, peak, tail, and recovery — so you know what to expect before you consume, not after.

The Three Phases of a Cannabis High

Every cannabis experience, regardless of method, moves through three phases:

• Onset: The time from consumption to feeling effects. This is where methods differ the most.

• Peak: The window of strongest effects. Usually 1–2 hours for most methods.

• Tail / Comedown: Effects gradually fade. This is where methods differ again — smoking fades quickly, edibles fade slowly.

Smoking and Vaping Flower

• Onset: Within seconds to a few minutes

• Peak: 15–30 minutes after consumption

• Total duration: 1–3 hours

• Residual effects: Possible mild lingering for a few hours

Inhaled cannabinoids reach the bloodstream through the lungs in seconds. This is why smoking and vaping produce the fastest onset of any method. The quick absorption is also why the peak and total duration are shorter — there's no delayed release from the digestive system.

For the full comparison of these two methods, see vaping vs smoking cannabis.

Vaping Concentrates (Dabs, Carts)

• Onset: Within seconds

• Peak: 10–30 minutes

• Total duration: 1–3 hours

• Intensity: Higher than flower due to increased potency

Concentrates act on the same timeline as flower because both are inhaled, but the higher potency means the peak can feel more intense. See our cannabis concentrates guide for more.

Edibles

• Onset: 30 minutes to 2 hours

• Peak: 1.5–3 hours after consumption

• Total duration: 4–8 hours

• Residual effects: Possible mild effects up to 12 hours later

Edibles are a completely different experience than smoking. Cannabinoids pass through the digestive system and liver before reaching the brain, where THC is converted into 11-hydroxy-THC — a more potent, longer-lasting metabolite (Lemberger et al., 1972, Science). This is why edibles feel stronger and last longer than equivalent smoked doses.

For dosing, see our cannabis edibles dosage guide.

Tinctures

• Onset (sublingual): 15–45 minutes

• Onset (swallowed): 1–2 hours

• Peak: 1–2 hours

• Total duration: 4–6 hours

Tinctures are a hybrid. Some absorbs sublingually through the mucous membranes under the tongue (fast onset), and some is swallowed and processed like an edible (slow onset, long tail). The combination produces a faster initial lift than edibles but a more gradual, sustained effect than smoking.

See our cannabis tinctures guide for full details.

Topicals

• Onset: 15–30 minutes

• Peak: 1 hour

• Total duration: 2–6 hours of localized relief

• Psychoactive effects: None (except transdermal patches)

Topicals produce localized effects where applied — no "high" and no systemic absorption. See our cannabis topicals guide for more.

What Affects How Long Your High Lasts

Your Metabolism

Faster metabolizers process cannabinoids more quickly and may experience shorter highs. Slower metabolizers may feel effects for longer.

Your Body Composition

THC is fat-soluble and gets stored in fat cells. Body composition affects distribution and elimination, though the relationship is complicated and individual.

Your Tolerance

Regular cannabis users may feel shorter, less intense highs at the same dose. This is because of CB1 receptor downregulation — your body adapts to repeated THC exposure. Tolerance breaks can reset this.

The Dose

Higher doses produce longer highs, up to a point. Doubling your dose doesn't double duration, but it usually extends peak effects and tail time.

Food and Hydration

Eating before or during cannabis use can slow absorption (especially with edibles) and extend the experience. Dehydration can make effects feel stronger.

The Strain

Terpene profiles can influence duration subtly. See our cannabis terpenes guide for more.

How Long Does THC Stay in Your System?

The high and the detectable presence of THC in your body are different timelines. Effects might fade in 2 hours, but THC metabolites can be detectable for days to weeks.

• Saliva tests: 24–72 hours after use

• Blood tests: 1–7 days for occasional users, up to 30 days for heavy users

• Urine tests: 3–30 days depending on frequency of use

• Hair tests: Up to 90 days

These are general ranges. Actual detection depends on frequency, dose, body composition, and test sensitivity.

What To Do If Your High Lasts Too Long

Waiting is the main solution. Cannabis effects always fade — the question is just how uncomfortable it feels in the meantime. A few things can help ease a long or unpleasant high:

• Hydrate with water or something with electrolytes.

• Eat a light snack — food can help metabolize cannabinoids and ground you.

• Take CBD if you have it — it may reduce the intensity of a THC high.

• Find a calm environment with low stimulation.

• Sleep if possible — you'll wake up feeling much better.

For a complete guide to managing an overwhelming high, see what to do if you're too high.

Frequently Asked Questions

Why do edibles last so much longer than smoking?

Because of the liver. When you eat cannabis, the liver converts THC into 11-hydroxy-THC, a more potent and longer-lasting metabolite. Smoked THC bypasses the liver and produces effects more quickly but also fades more quickly.

Can you still be high the next day?

After a strong edibles dose, yes — especially if consumed late. A residual "edible hangover" of grogginess or mild foggy feeling is common after high-dose edibles. It usually resolves within 12–18 hours.

Does CBD shorten a THC high?

Not exactly. CBD may soften the intensity of a THC high and reduce anxiety, but it doesn't dramatically shorten the overall duration.

Why am I more tired after a cannabis high?

The comedown from cannabis often involves mild fatigue, hunger, and relaxation. This is normal and usually resolves after rest or sleep.

Do cannabis highs get shorter with tolerance?

Generally yes. Experienced users often report shorter, less intense highs at the same dose compared to beginners.

How long before I can drive after cannabis?

At least several hours, and ideally 8 or more after smoking, 12 or more after edibles. Impairment lasts longer than the subjective high, and driving under the influence is illegal and dangerous regardless of how you feel. When in doubt, don't drive.

The Bottom Line

Cannabis duration is predictable once you know the method. Smoking and vaping peak fast and fade in 1–3 hours. Edibles are a 4–8 hour commitment with a delayed onset. Tinctures offer a faster start than edibles and a gentler tail. Topicals last a few hours locally and don't get you high at all. Knowing these timelines before you consume is how you avoid surprises — and plan cannabis around your day instead of the other way around.

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