Costa Rica Average Temperatures & Rainfall

City
January
February
March
April
May
June
July
August
September
October
November
December
Airport
 High 81 83 85 85 82 81 81 81 80 80 80 81
Low 62 62 63 63 64 64 64 63 63 63 63 63
Avg Rainfall 0.11 0.19 0.22 1.3 4.2 4.2 2.8 4 5.4 5.3 7.7 0.5
Arenal
 High 81 83 85 85 82 81 81 81 80 80 80 81
Low 62 62 63 63 64 64 64 63 63 63 63 63
Avg Rainfall 3.5 3.1 1.5 1.6 5 7.2 8.1 7.8 7.7 7.8 7.7 8.2
Guanacaste/Tamarindo
 High 91 95 95 96 93 89 89 89 87 87 87 88
Low 69 69 71 73 79 73 73 73 71 71 69 69
Avg Rainfall 0.02 0.02 0.14 0.34 3.6 4.8 2.1 3.2 5 4.4 1.6 0.2
Manuel Antonio
 High 87 87 89 89 89 87 87 86 86 86 86 86
Low 6 69 71 71 71 71 69 69 71 71 71 69
Avg Rainfall 1.1 0.6 0.9 2.6 6.1 6.7 7.1 7.4 8.2 10 6 2.6
Monteverde
 High 68 69 71 71 71 71 69 69 71 69 68 69
Low 53 53 53 55 57 57 57 57 55 57 57 57
Avg Rainfall 2.5 1.5 0.65 1.9 5.4 6.5 5.6 7.1 7.6 6.6 6.6 5.1
Tortuguero
 High 88 88 87 87 87 87 88 86 87 87 85 88
Low 68 68 69 71 71 71 71 71 71 71 69 69
Avg Rainfall 4.9 3.3 3.2 4.3 4.4 4.6 4.7 4.8 2.2 3.2 6.1 6.9
San Jose
 High 73 75 77 78 78 78 77 77 76 77 75 73
Low 59 59 60 60 62 61 62 62 60 60 60 59
Avg Rainfall 0.2 0.1 0.9 0.7 3.5 4.4 3.3 3.9 5.1 5.1 2.2 0.6