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San Juan October Weather

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

Typical San Juan October Weather 1991–2020
Average daily high	88.6 °F
Average daily low	76.8 °F
Average monthly precipitation	5.1 inches
Average monthly snow	none
Daily chance of precipitation	57.1%
Daily chance of snow	0%

San Juan October Weather Records 1956–2024
Highest temperature	98 °F	October 9, 1981
Lowest temperature	67 °F	October 20, 1959
Highest daily low	83 °F	October 4, 2015
Lowest daily high	76 °F	October 6, 1985
Hottest average high temperature	91.0 °F	2023
Coldest average high temperature	85.1 °F	1966
Most daily precipitation	5.2 inches	October 27, 2023
Most monthly precipitation	15.1 inches	1970
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
October 1	89.1	77.1	96	71
October 2	89.1	77.1	95	72
October 3	89.1	77.1	96	73
October 4	89.0	77.0	95	72
October 5	89.0	77.0	95	71
October 6	89.0	77.0	94	70
October 7	88.9	77.0	95	72
October 8	88.9	77.0	97	72
October 9	88.9	76.9	98	71
October 10	88.8	76.9	95	71
October 11	88.8	76.9	95	70
October 12	88.8	76.9	97	72
October 13	88.8	76.9	97	70
October 14	88.8	76.8	97	71
October 15	88.7	76.8	96	71
October 16	88.6	76.8	96	71
October 17	88.6	76.7	95	70
October 18	88.5	76.7	94	70
October 19	88.5	76.6	94	70
October 20	88.4	76.6	95	67
October 21	88.3	76.5	94	68
October 22	88.3	76.4	93	69
October 23	88.2	76.4	95	70
October 24	88.1	76.3	94	70
October 25	88.1	76.3	93	68
October 26	88.0	76.2	93	68
October 27	87.9	76.2	95	70
October 28	87.8	76.1	94	71
October 29	87.7	76.1	94	70
October 30	87.7	76.0	92	68
October 31	87.6	76.0	92	70

Weather Station Details

Years	Station	Coordinates
1956–2024	San Juan Airport	location