Weather in Mombasa in October

A hard month. October asks something of you. Go in knowing what. Highs average 32.7 °C, lows 23.3 °C, and rain falls on 13 days — nothing in the month is working against you.

October ranks 5 of 12 in Mombasa: past the worst of the year but short of July, which is the month to book if the dates are open.

Rain on 13 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 32.7 °C days and 23.3 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 29 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest October day reached 36.7 °C and the coldest night fell to 20.8 °C, and the wettest single day dropped 90 mm — roughly 92% of the month's rain in one day.

This is the volatile part. October rainfall has ranged from 6 mm to 370 mm across the twenty years measured — a 364 mm spread around an average of 98 mm. The average is real but almost no individual October looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 11.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.

How October sits in the year

Temperatures hold steady either side: 31.8 °C in September, 32.7 here, 33.1 in November. Nothing about the timing within the month matters much. Rain is the thing that moves: November brings 6 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in October

Mombasa sits close enough to the equator that daylight barely moves all year — 12.2 hours in October, against a range of just 0.5 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 26.8 °C in October — warm enough to stay in as long as you like. The sea peaks at 29.4 °C in April and bottoms out at 25.7 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

October in Mombasa versus nearby

If Mombasa is one option among several, the nearby comparison is worth making. Zanzibar is a better bet in October — 4 °C cooler, 1 day less rain. Dar es Salaam is a better bet in October — 3 °C cooler, 2 days less rain.

So: October is a compromise. July is 26 points better and is what Mombasa is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Mombasa

See all twelve months in Mombasa, or where else to go in October.