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San Juan July Weather

Averages and records for weather in San Juan, Puerto Rico in the month of July.

Typical San Juan July Weather 1991–2020
Average daily high	88.8 °F
Average daily low	77.6 °F
Average monthly precipitation	6.0 inches
Average monthly snow	none
Daily chance of precipitation	61.3%
Daily chance of snow	0%

San Juan July Weather Records 1956–2024
Highest temperature	95 °F	July 10, 1981
Lowest temperature	69 °F	July 1, 1959
Highest daily low	83 °F	July 14, 1983
Lowest daily high	78 °F	July 11, 1958
Hottest average high temperature	91.5 °F	1980
Coldest average high temperature	86.4 °F	1969
Most daily precipitation	9.2 inches	July 18, 2013
Most monthly precipitation	14.2 inches	2013
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
July 1	88.9	77.6	94	69
July 2	88.9	77.6	93	72
July 3	88.9	77.6	94	71
July 4	88.9	77.6	92	73
July 5	88.9	77.6	92	72
July 6	88.8	77.5	93	71
July 7	88.8	77.6	93	72
July 8	88.8	77.6	94	70
July 9	88.8	77.6	93	71
July 10	88.8	77.6	95	74
July 11	88.8	77.6	93	72
July 12	88.8	77.6	93	72
July 13	88.8	77.6	94	71
July 14	88.8	77.6	94	71
July 15	88.8	77.5	93	72
July 16	88.7	77.6	93	71
July 17	88.7	77.6	93	72
July 18	88.7	77.6	91	70
July 19	88.7	77.6	93	70
July 20	88.7	77.6	92	72
July 21	88.7	77.6	93	71
July 22	88.7	77.6	94	72
July 23	88.7	77.6	93	71
July 24	88.8	77.6	93	72
July 25	88.8	77.7	93	72
July 26	88.8	77.7	93	71
July 27	88.9	77.7	93	72
July 28	88.9	77.7	92	71
July 29	88.9	77.8	93	72
July 30	88.9	77.8	94	72
July 31	89.0	77.8	94	72

Weather Station Details

Years	Station	Coordinates
1956–2024	San Juan Airport	location