Mbabane (Swaziland) weather in December

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.

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.