Climate

Lagos experiences tropical savanna climate (Aw) according to the Köppen climate classification, as there's a significant precipitation difference between the wet season and the dry season. The wet season starts in April and ends in October, while the dry season starts in November and ends in March. The wettest month is June with precipitation total 315.5 millimetres (12.42 in), while the driest month is January with precipitation total 13.2 millimetres (0.52 in).
As the city is located near the equator, the temperature remains constant with no significant difference between the hottest month and the coolest month. The hottest month is March with average temperature 28.5 °C (83.3 °F), while the coolest month is August with average temperature 25.0 °C (77.0 °F).

[hide]Climate data for Lagos (Murtala Muhammed International Airport) 1961–1990, extremes: 1886–present
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	40.0 (104)	37.1 (98.8)	37.0 (98.6)	39.6 (103.3)	37.0 (98.6)	37.6 (99.7)	33.2 (91.8)	33.0 (91.4)	33.2 (91.8)	33.7 (92.7)	39.9 (103.8)	36.4 (97.5)	40.0 (104)
Average high °C (°F)	32.2 (90)	33.2 (91.8)	32.9 (91.2)	32.2 (90)	30.9 (87.6)	29.3 (84.7)	28.2 (82.8)	28.3 (82.9)	28.9 (84)	30.3 (86.5)	31.4 (88.5)	31.8 (89.2)	30.8 (87.4)
Daily mean °C (°F)	27.3 (81.1)	28.4 (83.1)	28.5 (83.3)	28.0 (82.4)	27.0 (80.6)	25.6 (78.1)	25.2 (77.4)	25.0 (77)	25.5 (77.9)	26.4 (79.5)	27.2 (81)	27.2 (81)	26.8 (80.2)
Average low °C (°F)	22.4 (72.3)	23.7 (74.7)	24.1 (75.4)	23.7 (74.7)	23.2 (73.8)	21.9 (71.4)	22.3 (72.1)	21.8 (71.2)	22.1 (71.8)	22.4 (72.3)	23.0 (73.4)	22.5 (72.5)	22.8 (73)
Record low °C (°F)	12.6 (54.7)	16.1 (61)	14.0 (57.2)	14.9 (58.8)	20.0 (68)	21.2 (70.2)	15.0 (59)	19.0 (66.2)	13.0 (55.4)	17.9 (64.2)	11.1 (52)	11.6 (52.9)	11.1 (52)
Average precipitation mm (inches)	13.2 (0.52)	40.6 (1.598)	84.3 (3.319)	146.3 (5.76)	202.4 (7.969)	315.5 (12.421)	243.0 (9.567)	121.7 (4.791)	160.0 (6.299)	125.1 (4.925)	39.7 (1.563)	14.8 (0.583)	1,506.6 (59.315)
Average precipitation days (≥ 1.0 mm)	1.5	2.8	6.6	9.0	12.5	16.2	13.2	11.6	12.7	11.2	4.9	2.1	104.3
Average relative humidity (%)	81	79	76	82	84	87	87	85	86	87	84	82	83
Mean monthly sunshine hours	164.3	168.0	173.6	180.0	176.7	114.0	99.2	108.5	114.0	167.4	186.0	192.2	1,843.9
Source #1: Deutscher Wetterdienst (humidity, 1952–1967),[62] NOAA (sun)[63]