Weather in Mombasa in June
Kenya · 20-year averages, June
A good month. June works. It is not the peak, but nothing about it fights you. Highs average 29.7 °C, lows 22.5 °C, and rain falls on 13 days — nothing in the month is working against you.
June ranks 3 of 12 in Mombasa. Only July scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain on 13 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 29.7 °C days and 22.5 °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: 12 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest June day reached 33 °C and the coldest night fell to 19 °C, and the wettest single day dropped 35 mm — roughly 47% of the month's rain in one day.
June is moderately variable: 28 mm in the driest year against 149 mm in the wettest, around an average of 74 mm. Roughly two Junes in three land near that average, and the third does something else entirely.
Wind is light at 14.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 78%, high enough to notice on the warm days without dominating them.
How June sits in the year
Temperatures hold steady either side: 30.5 °C in May, 29.7 here, 29.7 in July. Nothing about the timing within the month matters much. Rain is the thing that moves: July brings 5 days less of it, so pushing the dates later buys drier weather.
Daylight in June
Mombasa sits close enough to the equator that daylight barely moves all year — 11.9 hours in June, 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 27.2 °C in June — warm enough that the water offers no relief from the heat. 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
Busy. Popular without being frantic; book the things you care about, improvise the rest.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
June in Mombasa versus nearby
If Mombasa is one option among several, the nearby comparison is worth making. Zanzibar is a better bet in June — 2.1 °C cooler, 6 days less rain. Dar es Salaam is a better bet in June — within a degree on temperature, 8 days less rain.
So: June works, with July the better month by 9 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Mombasa
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 35.8 | 24.8 | 6 | 25 | 69 | 12.3 | 28.3 | 48 |
| February | 36.6 | 25 | 3 | 15 | 67 | 12.2 | 28.3 | 48 |
| March | 35.2 | 25.5 | 14 | 62 | 71 | 12.1 | 29.2 | 39 |
| April | 32.4 | 25 | 24 | 129 | 79 | 12 | 29.4 | 41 |
| May | 30.5 | 23.9 | 23 | 217 | 82 | 11.9 | 28.3 | 47 |
| June | 29.7 | 22.5 | 13 | 74 | 78 | 11.9 | 27.2 | 66 |
| July | 29.7 | 21.8 | 8 | 36 | 75 | 11.9 | 26 | 75 |
| August | 30.6 | 21.9 | 8 | 29 | 73 | 12 | 25.7 | 71 |
| September | 31.8 | 22.5 | 8 | 38 | 71 | 12.1 | 25.9 | 64 |
| October | 32.7 | 23.3 | 13 | 98 | 73 | 12.2 | 26.8 | 49 |
| November | 33.1 | 24.1 | 19 | 104 | 77 | 12.3 | 28 | 38 |
| December | 34.1 | 24.6 | 15 | 69 | 74 | 12.4 | 28.7 | 43 |
See all twelve months in Mombasa, or where else to go in June.
Planning the rest of the trip
- Flight time to Mombasa how long you are actually in the air
- Mombasa time zone and the difference from home
- Days until your trip count down to the departure date