San Juan's climate is very pleasant, with an
average temperature of 83 F/23 C in the winter, 85 F/29 C in
the summer and year-round sea breezes. Temperatures are slightly
cooler in the mountains during both summer and winter. Average
humidity is 55% during the day and 80% at night. The rainy season
hits its peak in August, and hurricane season is August-November.
Shown below is the monthly climate Summary
(1971-2000):
| Month |
Avg Max. Temp (F) |
AvgMin. Temp (F) |
Record
High (°F) |
Record
Low (°F) |
Avg Total Precipitation
(in.) |
Avg Dew Point |
|
Jan |
81.2 |
70.7 |
92 |
61 |
3.51 |
67 |
|
Feb |
81.2 |
70.6 |
96 |
62 |
2.72 |
67 |
|
Mar |
82.1 |
71.4 |
96 |
60 |
3.03 |
67 |
|
Apr |
82.9 |
72.5 |
97 |
64 |
3.71 |
69 |
|
May |
84.3 |
74.1 |
96 |
66 |
5.92 |
71 |
|
Jun |
85.4 |
75.3 |
97 |
69 |
5.91 |
73 |
|
Jul |
84.9 |
75.7 |
95 |
69 |
5.10 |
73 |
|
Aug |
85.8 |
75.7 |
97 |
70 |
6.06 |
74 |
|
Sep |
86.5 |
75.6 |
97 |
69 |
5.49 |
73 |
|
Oct |
86.2 |
75 |
98 |
67 |
6.07 |
73 |
|
Nov |
84.2 |
73.6 |
96 |
66 |
6.21 |
71 |
|
Dec |
82.1 |
71.9 |
94 |
63 |
5.70 |
69 |
Please note
that additional info (prices, activities, etc) are found to
the right of this pages. 
