Lagos — sää kuukausittain

January in Lagos is harmattan season, which the Nigeria forum describes as the year's cool spell — "hardly hot" by local standards — though cool here still means days near 32°C and nights around 25. What the harmattan actually brings is dust off the Sahara, and that shows up plainly in the air-quality record: December, January and February all sit around 130, roughly double the 54–81 of the rest of the year. The dry season and the dusty season are the same season. It is the driest stretch too, under eight rainy days, with the sea at 28°C.

Lagos forum-adjacent reviews are consistent that the rainy season starts hitting hard by May, and outdoor attractions like Omu Resort get disrupted - one visitor described water leaking through an indoor hall and having to use a phone light to navigate an aquarium exhibit during a downpour, with no refunds offered when rides or animal areas close. The advice from reviewers who'd been caught out: plan around indoor time and expect the rain to actually interrupt plans, not just pass through as a quick shower, since this time of year brings frequent, heavy tropical downpours rather than occasional drizzle.

Forum posters describe Lagos, Nigeria weather as usually hot and humid with tropical rain that arrives heavy rather than as a light drizzle, and one resort review specifically warns the property isn't well suited to a rainy-season visit given how operations there are affected once the rain sets in. Posters generally note temperatures well over 90F (32C+) under scorching sun as typical, with air conditioning genuinely valued indoors given how few outdoor spaces offer any relief. Given the limited destination-specific detail for June exactly, this note leans on that broader pattern: June sits within Lagos's rainy season, so expect frequent, heavy downpours layered on top of persistent heat and humidity, with indoor plans and flexible scheduling around storms the more reliable approach than counting on dry days.

Forum posters describe Lagos, Nigeria as generally hot and humid year-round, with visitors reporting temperatures well over 90F under strong sun and noting that few places outside upscale hotels and malls are air conditioned. Posters consistently recommend light-colored, loose-fitting clothing and comfortable sandals for the heat and humidity. Posters flag a practical evening detail worth knowing: restaurants and other indoor spots that do have air conditioning often run it very cold, so a light cardigan or jacket is worth carrying even on a hot, humid day. Given July sits within Lagos's wetter mid-year stretch, expect frequent rain showers layered on top of the persistent heat and humidity that define the city's tropical coastal climate most of the year.

Lagos, Nigeria sits at the edge of harmattan season in November — the dry, dusty wind that peaks across West Africa December through February — with regional context suggesting September, October and November are delightful months elsewhere in Nigeria, before the driest, dustiest stretch sets in further north. That said, Lagos's coastal humidity doesn't fully back off: heat is described as consistently notable, “well over 90°F under scorching sunlight,” with few places genuinely air-conditioned outside hotels and malls. Standard advice stays the same as other months: light-coloured, loose-fitting clothing and comfortable sandals over anything heavier. Our record: 29.7°C days, feels-like 36°C, 20.8 rain days and an AQI of 81 — hot, humid and still genuinely wet, more of a transitional month than the 'delightful' framing from further north in the country would suggest.

Lagos, Nigeria sits squarely in harmattan season by December — the dry, dusty wind that peaks across West Africa from December through February — but that doesn't mean cool or comfortable. One traveler's review of a December visit is blunt about it: the humid heat hit them hard as sweat poured down their heads, heat and humidity together rather than the drier air harmattan brings further inland. The dry season does mean less rain than the rest of the year, but the trade-off is dust haze from the wind rather than clear skies. Our record: 31.2°C days, 76.5% humidity, only 10 rain days but an AQI of 134 — the dust and haze the harmattan brings, layered on top of heat that doesn't let up for the season.