Travel time: Year-round
Victoria Falls, or Mosi-oa-Tunya ("The Smoke That Thunders"), operates on a dramatic seasonal cycle dictated by the Zambezi River. Located at an altitude of approximately 900 meters (3,000 feet) on the border of Zimbabwe and Zambia, the region experiences a subtropical climate defined by two primary seasons: a hot, rainy summer and a mild, dry winter.
This is a period of transition from cool, crisp air to intense heat.
Known as the "Green Season," the arrival of rains in November is heralded by spectacular electrical storms.
While the surrounding region is largely savanna, a permanent microclimate exists directly across from the falls. The constant spray—which can rise 400 meters into the air and be seen from 50 kilometers away—creates a localized rainforest. Here, it "rains" 24 hours a day, 365 days a year. This persistent moisture supports a dense ecosystem of mahogany and ebony trees and keeps temperatures in the immediate vicinity slightly cooler than the surrounding bushveld.
The most critical climate factor is the "flood pulse." Because the Zambezi's catchment area is far upstream in Angola and Zambia, there is a two-month lag between the local rains and the river's peak.
One of the area's most famous phenomena is the Lunar Rainbow or "Moonbow." During the high-water months (April to June), the full moon reflects off the massive spray plume, creating a distinct white rainbow visible at night. Historically, travelers should be aware of increasing variability; recent years have seen more frequent and intense "hot droughts," where October temperatures reach record highs before the delayed onset of the rainy season.
Locals adapt to the daily temperature swing by embracing the "safari rhythm": activity at dawn and dusk with a midday siesta to avoid the relentless African sun. Beyond the numbers, the weather here is physical; in peak flood, the air feels heavy with mist and vibration, while in the dry season, it feels sharp and aromatic with the scent of wild sage and sun-baked earth.