These are the best micro four thirds cameras with weather-sealing, chosen for their ability to keep shooting confidently in rain, snow, dust, and sea spray while delivering the portability and performance creators expect from the MFT system. At the top for all-weather reliability are the OM System OM-1 Mark II and OM-1, both built around rugged magnesium-alloy chassis with extensive sealing at buttons, seams, and doors, and rated to keep working in freezing conditions; paired with sealed M.Zuiko PRO lenses, they’re a go-to for stormy seascapes, alpine treks, and wildlife blinds where grit and moisture are a given. The OM-5 brings much of that protection in a lighter, travel-friendly body that still shrugs off downpours and trail dust, making it a sweet spot for hikers and city shooters who want serious sealing without bulk. If you’re picking up proven Olympus bodies on the used market, the E-M1 Mark III and E-M1X remain tanks—designed for professional abuse with robust gaskets and dependable operation below freezing—while the E-M5 Mark III delivers meaningful weather resistance in a compact package for those prioritizing minimal carry weight. On the Panasonic side, the GH6 is a standout for harsh environments, combining a sealed, heat-managed body with top-tier video features so you can film in the rain or on windswept ridgelines without babying the gear; the GH5 II and the original GH5 are still beloved for their durable, splash- and dust-resistant builds that have earned a reputation on documentary sets and travel shoots worldwide. For hybrid stills shooters who want speed and stabilization wrapped in sealing, the G9 II and the original G9 provide rugged confidence and excellent ergonomics, while the G85/G80 remains a budget-friendly entry into weather-sealed MFT that punches well above its weight for outdoor work. The magic of these bodies is how their sealing complements core strengths of the format: excellent in-body image stabilization that lets you leave the tripod behind when the ground is slick or the wind is howling; compact, sealed lenses that keep the whole kit light and balanced when you’re wearing gloves or a rain shell; and balanced batteries, USB-C power options, and straightforward control layouts that make operation in bad weather feel natural. For the most resilient setups, pair bodies with sealed lenses—think M.Zuiko PRO zooms like the 12-40mm f/2.8 PRO II, 12-100mm f/4 PRO, or tele options like the 40-150mm f/2.8 PRO—and Panasonic Leica and Lumix G sealed glass such as the 12-60mm f/2.8-4, 12-35mm f/2.8, 35-100mm f/2.8, or the 10-25mm f/1.7; a weather-sealed chain from mount to front element preserves the protection the body provides. Practical field habits still help—use lens hoods to shed droplets, keep a microfiber in a dry pocket, and avoid opening doors in blowing sand—but with these weather-sealed micro four thirds cameras you can focus on composition and timing instead of the forecast. Whether you’re documenting coastal storms, forest downpours, or dusty festival scenes, the best weather-sealed MFT bodies deliver the ruggedness, stabilization, and lens ecosystem that make this format a reliable partner when conditions turn hostile.