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Month by month

Amboseli in September

September is the pick of Amboseli's year. It sits deep in the long dry season, the swamps hold the densest gatherings of animals, and Kilimanjaro is clear at dawn more often than in any other month.

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September is the best month to visit Amboseli: about 8 mm of rain, 27.3°C days, the tightest concentrations of game on the swamps, and a clear Kilimanjaro summit at dawn on about 43 per cent of mornings on modelled cloud data, the best of the year. It is high season everywhere, so book months ahead.

Amboseli weather in September: dry and warming

September averages 27.3°C in the afternoon and 16.0°C at night, with about 8 mm of rain, an approximate figure scaled to the station's measured annual mean. The days warm up again after the cool of July and August, and Open-Meteo's archive for 2015 to 2024 puts recent September afternoons at about 29°C.

Rain almost never falls this deep into the long dry season, which is the whole point of the month: by now the plains around the park have gone three months without meaningful rain.

Peak concentration on the swamps

The Enkongo Narok and Longinye swamps are fed by cold, clear springs from Kilimanjaro's groundwater and never dry out, so in September they are the only permanent water in the basin. Expert Africa describes the mixed zebra and wildebeest herds concentrating near the swamps at the end of the dry season, and the elephants come to the same swamps.

This is the month when the swamp circuits deliver most per hour of driving, and also when they are busiest. KWS zones the swamps as the park's high-use area; the western sector around Kitirua and the dry lake bed, and the north and east, are zoned for low use.

The clearest Kilimanjaro mornings of the year

On modelled cloud data for 2015 to 2024, September has the clearest dawns of the year. About 43 per cent of mornings show a clear summit between 06:00 and 08:00, and the average morning cloud over the summit is about 61 per cent, against 89 per cent in April. The afternoons cloud over in every month, so take the first drive at sunrise; treat the figures as a relative guide, not an observation record.

Every lodge that publishes its seasons is at high or peak rates: Tortilis Camp $715 per person sharing, Ol Tukai Lodge $650 per double room and Porini Amboseli Camp $855 per person, all on 2026 cards. If you are going on to Tsavo West, the KWS combination ticket costs $150 per non-resident adult for both parks, against $170 bought separately.

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