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Rainfall & Temperature Chart By Region

(Source: National Weather Services of Costa Rica)
Highest, Lowest Temperatures and Highest Average Rainfall are hightlighted.

Arenal

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	83	84	86	87	88	86	85	85	86	85	83	82
Avg. Min. Temperature (F)	68	67	69	69	70	71	71	72	70	70	71	70
Avg. Rainfall (inches)	7.5	5	3.6	3.7	10.2	16	20	17	16	17	12	10

Osa Peninsula

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	91	92	92	91	90	89	89	89	90	89	89	90
Avg. Min. Temperature (F)	72	71	73	73	73	72	71	71	71	71	71	71
Avg. Rainfall (inches)	6.3	5.7	8	11	18.9	17.5	18.9	20.9	22	27.7	22.3	11.6

Guanacaste

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	91	93	96	96	91	89	89	89	87	87	87	89
Avg. Min. Temperature (F)	69	71	71	73	73	71	71	71	71	71	69	69
Avg. Rainfall (inches)	0.2	0.4	1	2.7	10.8	12.8	9.6	12	15.7	16	12.4	1

Manuel Antonio

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	87	87	89	89	89	87	87	86	86	86	86	86
Avg. Min. Temperature (F)	69	69	71	71	71	71	69	69	71	71	71	69
Avg. Rainfall (inches)	2.8	1.4	2.5	6.6	15.4	17	18	18.8	20.8	25.4	15.3	6.7

Monteverde

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	68	69	71	71	71	71	69	69	71	69	68	69
Avg. Min. Temperature (F)	53	53	53	55	57	57	57	57	55	57	57	57
Avg. Rainfall (inches)	6.3	3.8	1.7	4.8	13.7	16.5	14	18	19.4	16.8	16.9	13

San José

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	73	75	77	78	78	78	77	77	76	77	75	73
Avg. Min. Temperature (F)	59	59	60	60	62	62	62	62	60	60	60	59
Avg. Rainfall (inches)	0.4	0.2	0.5	1.7	8.9	11.3	8.5	9.8	13	13	5.6	1.6

Tortuguero

	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
Avg. Max. Temperature (F)	88	88	87	87	87	87	88	86	87	87	85	88
Avg. Min. Temperature (F)	68	68	69	71	71	71	71	71	71	71	69	69
Avg. Rainfall (inches)	12.5	8.3	8	10.9	11	11.7	16.8	12.3	5.7	8.2	15.4	17.5

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