San Juan December Weather Averages Puerto Rico, United States of America

December Weather Averages for San Juan

High Temp	27°C	81°F
Low Temp	24°C	75°F
Avg Temp	25°C	78°F
Sunshine Hours	155 hours
Rainfall	84.89 mm	3.34 In
Rain days	6 days
Pressure	1015 mb	30 In

San Juan December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	28°C / 82°F	25°C / 76°F	26°C / 79°F	214 hours	31.50 mm / 1.24 In	5 days	1015 mb / 30 In
2010	26°C / 80°F	23°C / 73°F	24°C / 76°F	173 hours	70.39 mm / 2.77 In	9 days	1013 mb / 30 In
2011	27°C / 80°F	23°C / 74°F	25°C / 77°F	203 hours	36.46 mm / 1.44 In	7 days	1015 mb / 30 In
2012	27°C / 81°F	24°C / 75°F	25°C / 77°F	146 hours	44.84 mm / 1.77 In	4 days	1014 mb / 30 In
2013	27°C / 80°F	24°C / 75°F	25°C / 77°F	112 hours	138.98 mm / 5.47 In	12 days	1016 mb / 30 In
2014	27°C / 81°F	23°C / 74°F	25°C / 77°F	225 hours	57.50 mm / 2.26 In	4 days	1015 mb / 30 In
2015	28°C / 82°F	25°C / 76°F	26°C / 79°F	176 hours	34.08 mm / 1.34 In	3 days	1017 mb / 30 In
2016	28°C / 82°F	24°C / 76°F	26°C / 79°F	178 hours	52.32 mm / 2.06 In	7 days	1016 mb / 30 In
2017	27°C / 81°F	24°C / 75°F	26°C / 78°F	165 hours	47.77 mm / 1.88 In	5 days	1016 mb / 30 In
2018	27°C / 81°F	24°C / 75°F	25°C / 78°F	249 hours	21.70 mm / 0.85 In	4 days	1018 mb / 31 In
2019	28°C / 82°F	24°C / 76°F	26°C / 79°F	145 hours	62.94 mm / 2.48 In	13 days	1015 mb / 30 In
2020	27°C / 81°F	23°C / 73°F	25°C / 76°F	54 hours	26.41 mm / 1.04 In	4 days	1015 mb / 30 In
2021	28°C / 83°F	24°C / 74°F	25°C / 78°F	62 hours	37.60 mm / 1.48 In	7 days	1016 mb / 30 In
2022	28°C / 82°F	23°C / 73°F	24°C / 76°F	103 hours	27.20 mm / 1.07 In	1 days	1015 mb / 30 In
2023	27°C / 81°F	23°C / 74°F	25°C / 77°F	95 hours	83.04 mm / 3.27 In	0 days	1015 mb / 30 In
2024	28°C / 82°F	25°C / 77°F	26°C / 79°F	133 hours	422.72 mm / 16.64 In	14 days	1015 mb / 30 In
2025	28°C / 82°F	24°C / 76°F	26°C / 79°F	202 hours	247.60 mm / 9.75 In	7 days	1015 mb / 30 In

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