Manaus has an equatorial climate, but rainfall intensity is somewhat seasonal,
with one half of the year (coinciding with the Southern Winter)
being half as rainy as the other.

Manaus Weather and Climate Data

Month	Average Sunlight (hours)	Temperature				Discomfort from heat and humidity	Relative humidity		Average Precipitation (mm)	Wet Days (+0.25 mm)
		Average		Record
		Min	Max	Min	Max		am	pm
Jan	4	24	31	18	37	High	89	70	249	20
Feb	4	24	31	20	38	High	89	71	231	19
March	4	24	31	19	36	High	89	72	262	20
April	4	24	31	20	34	High	90	73	221	19
May	5	24	31	20	35	High	89	72	170	18
June	7	24	31	18	35	High	87	68	84	11
July	8	24	32	18	35	High	87	64	58	8
Aug	8	24	33	19	37	High	85	59	38	6
Sept	8	24	33	20	37	High	84	57	46	7
Oct	7	24	33	20	38	High	85	59	107	11
Nov	6	24	33	20	37	High	86	63	142	12
Dec	5	24	32	19	38	High	88	68	203	16

Current Weather at Manaus' Eduardo Gomes International Airport
 

Some weather data sourced from BBC
Some text and data sourced and adapted from WikiPedia