January
Green season
Peak green season, heavy rain, over 30°C, humid
- January 28.5° day, 21.5° night 352 mm over 20 wet days
Month by month
September is the best month for canoeing, when the Zambezi is at its lowest, and October is the best month for game viewing, when it is also brutally hot. The camp season runs roughly April to mid-November, and outside it there is no scheduled flight into the valley.
If you only want the answer
June to September. August here is genuinely rainless, 0 mm on the thirty-year average, against 352 mm in January. Nothing concentrates animals like water that has stopped falling.
The periods below are how this park actually divides its year, with thirty-year climate averages against each month. Averages hide bad years: a dry January still happens, and so does a wet July.
Green season
Peak green season, heavy rain, over 30°C, humid
Green season
Thunderstorms most days
Shoulder
Last green-season month, heavy downpours, water levels at their highest, over 30°C
Shoulder
Rains taper to showers, lush, the river still high
Shoulder
Dry season begins, the odd shower, days around 26°C
Prime
No rain, humidity drops, nights around 10°C and days around 25°C
Prime
Heart of winter, days in the 20s, single-digit nights
Prime
No rain, can drop below 5°C at night, days in the 20s
Prime
Rain almost unheard of, low humidity, low 30s
Shoulder
Peak dry, average highs around 36°C, regularly past 40°C. Away from the river the park is brown and barren
Green season
End of dry season, rains uncertain, hot with humidity building
Green season
Green season, thunderstorms most days, over 30°C
Climate figures are Open-Meteo climate normals, 1991 to 2020, measured at -15.5, 29.6. Prime, shoulder and green are worked out against this park's own year, not a fixed threshold: the four months with the least rain, the four with the most, and the rest in between. Full charts on the weather page.
This is a strongly seasonal park and the calendar is unusually rigid. Camps open only in the dry season, typically between April and November. Several individual camps and the entire Proflight network are pinned to 15 November, after which the valley roads fail and access is by boat.
The exact dates are unconfirmed, so read it as roughly mid-November to late March or April. What is certain is the flying season, 1 May to 15 November, and the fact that most in-park camps advertise 1 April as their opening date.
A handful of properties trade year-round, and they are almost all in the game management area or at the gateway rather than in the park: Mvuu, Kiambi, Gwabi, Breezes, Wildtracks and Muchichili, plus Royal Zambezi on the park side. That is not a coincidence. The game management area keeps road access when the park does not.
You will read that October here averages over 40°C. It does not. Weather-station data for Chirundu gives October mean maxima of about 36°C, with peaks that do pass 40. The accurate line is average highs around 36°C, regularly pushing past 40°C, and that is quite hot enough to plan around: in October the boat is the sensible way to spend the middle of the day and walking is genuinely hard work.
Canoeing becomes viable in April as levels stabilise, is excellent from June, and is at its best in September when the river is at its lowest. Trips run in two-person canoes, normally with a qualified guide in each canoe rather than one guide leading a flotilla. Some camps use the sheltered Chifungulu Channel near Sausage Tree rather than the main channel.
The hippo and crocodile risk is real and guides brief on it properly. Children under 12 are normally not permitted on canoe or walking safaris, which is the single most common trip-planning surprise for families.
The Lower Zambezi River is legally closed to fishing from 1 December to the end of February. This is not an operator convention, it is the Fisheries Act, Chapter 200 of the Laws of Zambia, whose closed-seasons schedule names the Lower Zambezi River from the dam wall to the Zambezi and Luangwa confluence, which is exactly this park's frontage.
Most safari sites have this backwards. The exempt water is Lake Kariba, along with Lake Tanganyika, not the Zambezi. The season reopens on 1 March, so the cleanest phrasing is closed 1 December to the end of February, reopening 1 March. The ban covers all fishing in the named waters, and the reading that it includes recreational catch-and-release is consistent with the statute's blanket wording.
In practice it barely bites, because 1 December to the end of February is when almost every camp on this river is shut. Tigerfish peak from late August to mid-November, with the core in September and October, and all fishing inside the park is catch-and-release in any case.