SeasonMapLamu weather in September
Kenya
September in Lamu: hot, dry, with clean air — an excellent time to visit.
#3 of 12 months in Lamu · #135 of 1383 destinations to visit in September · comfort 92/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Lamu in September
Other months in Lamu
Lamu's forum places February well clear of the island's wet season, which regulars pin to April through June, when some coastal properties close entirely and don't reopen until mid-June or early July. February sits in the reliable dry stretch, warm and settled, well ahead of any rainy-season disruption.
Add your own note from Lamu's card on the map.
Lamu climate normals — September
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 31°C / 88°F | |
| Sea temperature | 27°C / 81°F | 😎 warm sea |
| Rainfall | 25 mm / 1 in | ☀️ dry |
| Rainy days | 8 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 21°C / 70°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.1 h | |
| Wind | 22 km/h / 13 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Lamu in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyMaulidi, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Lamu's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherLamu's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Lamu in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Kusi, the cool monsoon
15 Jun – 30 Sep · usuallyWind seasonThe southeast monsoon settles into a dry, steady wind. Cooler and far less humid than the turn of the year, and the best sailing months for the dhows working the channel.
- Festival
Maulidi
15 Jul – 30 Sep · usuallyMajor festivalCrowdedThe biggest Maulidi on the Swahili coast: a week of recitation and poetry, donkey and dhow races, and a procession to the tomb of Habib Swaleh. It moves eleven days earlier each year, so check before you plan around it. Source ↗
Nearby, and something's on
Within 300 km of Lamu — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Lamu?
Lamu in September — FAQ
- Is September a good time to visit Lamu?
- September in Lamu: hot, dry, with clean air — an excellent time to visit. It ranks #3 of 12 months for Lamu on SeasonMap's comfort score (92/100).
- What is the weather like in Lamu in September?
- In September, Lamu averages a daily high of 28.1°C and a low of 24.1°C, with about 24.6 mm of rain over roughly 7.9 rainy days.
- What is the air quality in Lamu in September?
- Lamu has a mean US Air Quality Index of about 39 in September.
Other months in Lamu
Compare Lamu in September
Warmer or cooler than Lamu in September
Similar destinations in East Africa — September
Within 300 km: Mombasa's Kusi, the cool monsoon around 15 Jun – 30 Sep.