Eswatini's climate varies significantly by altitude, which splits the country into three distinct zones: the Highveld in the west (cool, wet), the Middleveld in the centre, and the hot Lowveld in the east.
May to September is the dry season and the most comfortable time for most visitors. Days are clear and sunny, nights can be cold in the highlands — bring a warm layer. Game viewing is excellent because vegetation is low and animals congregate around water. This is also the season for the Umhlanga Reed Dance in late August or early September.
October and November bring the first rains and rising heat, particularly in the Lowveld. Birdwatching peaks as migratory species arrive and the bush comes alive. Wildflower meadows in Malolotja are at their best in September and October.
December to March is the rainy season. The highlands are lush and green, waterfalls run full, and the countryside looks its best. Heat in the Lowveld can be intense, and malaria risk is higher there. The Incwala ceremony — the country's most sacred cultural event — takes place in late December or early January.
April is a pleasant shoulder month: the rains are tapering off, the country is still green, and visitor numbers are lower.
If you have a specific interest in the Incwala or Umhlanga ceremonies, plan carefully: the exact dates are set by the royal palace and announced only a few weeks in advance. Ask locally or check the official tourism website closer to your travel date.