As of 09:24 AST

San Juan, PR weather in December

85°

San Juan, Sunday, 9 August, 09:24

Light rain. Feels like 96°. High 90°, low 79°.

Pressure30.06 inHg

Wind7 mph NE

Humidity81%

Visibility6.2 mi

Dew point78°

See detailed hourly forecast

In December, San Juan, PR averages a high of 82.6° and a low of 71.3°. About 2.4 inches of precipitation fall over the month (17 wet days). The record high is 90.3° (2023) and the record low 63.9° (1991). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	83.3°	72°	63%	87.8° (2021)	67.6° (2001)
2	83.3°	72.1°	63%	89.8° (2024)	67.3° (2020)
3	83.1°	72.1°	63%	89.1° (2024)	68.7° (1996)
4	82.9°	72°	75%	88.9° (2023)	68° (2022)
5	82.9°	72°	55%	88.9° (2024)	68.4° (1973)
6	82.9°	72.1°	58%	90.3° (2023)	67.1° (2020)
7	82.8°	71.8°	55%	88.2° (1997)	67.8° (1960)
8	82.8°	71.6°	57%	88.2° (1997)	68.4° (2022)
9	82.8°	71.8°	53%	87.8° (1962)	66.4° (2020)
10	82.4°	71.6°	58%	87.3° (1989)	66.2° (2022)
11	82.8°	71.8°	53%	90° (2025)	67.5° (1966)
12	83.1°	71.6°	52%	88.9° (2025)	65.8° (2018)
13	82.6°	71.6°	62%	87.4° (1989)	67.1° (2022)
14	82.8°	71.4°	57%	89.1° (2025)	64.2° (2022)
15	82.2°	71.4°	58%	88.9° (1997)	67.8° (1966)
16	82.2°	71.2°	62%	87.8° (1997)	68° (1966)
17	82.8°	71.2°	63%	87.1° (2020)	66.4° (1996)
18	82.6°	70.9°	43%	87.6° (1962)	66.2° (1984)
19	82.8°	70.9°	48%	87.6° (2025)	65.1° (2018)
20	82.6°	71.1°	58%	87.8° (2009)	67.8° (2018)
21	82.6°	71.2°	63%	87.6° (2009)	67.6° (2021)
22	82.6°	70.9°	55%	87.4° (2022)	66° (2018)
23	82.6°	70.9°	47%	88.2° (1989)	66.7° (1991)
24	82.6°	70.9°	48%	88.7° (2019)	63.9° (1991)
25	82.4°	70.7°	57%	88.3° (2019)	66.7° (1964)
26	82.6°	70.7°	60%	86.7° (1997)	67.5° (1964)
27	82.8°	70.5°	57%	88.3° (1976)	66.6° (2020)
28	81.9°	70.9°	53%	88.3° (1997)	66.4° (2020)
29	82.2°	70.5°	47%	87.6° (1997)	65.5° (2025)
30	82°	70.5°	50%	87.6° (1997)	66° (1974)
31	82.2°	70.7°	53%	88° (2025)	66.2° (1962)