You packed the cooler, loaded the car, and tossed your cannabis in a bag on the back seat. By the time you reach the campsite, the interior of that car may have hit 130°F or higher. And the flower, cartridge, or tincture you brought along? It has already started to change.
Knowing how to store cannabis in summer starts with understanding degradation, a well-studied process where the research is clear: light exposure, not heat, is the single greatest factor in cannabinoid loss. Temperature matters. Oxygen matters. But UV light drives the fastest, most destructive changes to THC, CBD, and the terpenes that shape how a product smells, tastes, and feels. Understanding these mechanisms can help you make better storage decisions, especially when summer travel puts your products in hostile conditions
