Mbabane (Swaziland) weather in September

Forum posters and travel guides describe September as the start of Eswatini's spring - generally good weather with plenty of sun, though posters note occasional rain is still a real possibility and that a hot, sunny afternoon can catch visitors out without a hat or sunscreen on hand. One detailed hotel review from a stay spanning late August into early September specifically reported a real rainy stretch - steady rain from the evening of the 5th through all of the 6th - showing that a passing multi-day wet spell is a genuine possibility even in this generally favorable shoulder month. Posters generally recommend packing for both sun and a chance of rain, with Mbabane's higher elevation keeping mornings and evenings noticeably cooler than the Ezulwini Valley just below it.

Forum posters describe Mbabane's climate as generally good with occasional rain, and Eswatini's spring (starting around September) as a commonly recommended season - though that framing describes a different part of the year than March, which sits at the tail end of the Southern Hemisphere's wetter summer stretch here. Posters describe Mbabane's cold winters (around 3-7C) as a genuinely different climate from its cool but comfortable summers, with almost no mosquitoes even in the warmer months, a real plus for the highveld setting. Given the limited March-specific detail available, this note leans on that broader seasonal pattern: expect mild, still-warm days with a real chance of rain as the wet season winds down. Posters generally rate March as a mild, transitional month for Mbabane, still summer-adjacent rather than the cooler, drier conditions of the region's more commonly recommended spring window.