San Juan, Puerto Rico Climate

Weather: 31.13°C/88.03°F, Wind SW at 7.2 km/h, 62% Humidity, 0% Chance of rain

Puerto Rico
(Photo by Robert V. Ruggiero on Unsplash)
Contents

San Juan Climate Summary

Located at an elevation of 4.58 meters (15.03 feet) above sea level, San Juan has a Tropical monsoon climate (Classification: Am). The city’s yearly temperature is 27.15ºC (80.87ºF) and it is 0.19% higher than Puerto Rico’s averages. San Juan typically receives about 69.35 millimeters (2.73 inches) of precipitation and has 169.54 rainy days (46.45% of the time) annually.

CountryPuerto Rico
Longitude-66.1057355
Latitude18.4655394
Attitude/Elevation4.58m (15.03ft)
Local timeFriday 19:41
Annual high temperature28.29ºC (82.92ºF)
Annual low temperature25.26ºC (77.47ºF)
Average annual precip.69.35mm (2.73in)
Warmest monthSeptember (29.79ºC / 85.62ºF)
Coldest MonthMarch (23.66ºC / 74.59ºF)
Wettest MonthNovember (112.54mm / 4.43in)
Driest MonthFebruary (37.78mm / 1.49in)
Number of days with rainfall (≥ 1.0 mm)169.54 days (46.45%)
Days with no rain195.46 days (53.55%)
Humidity77.45%

Climate San Juan: Monthly Averages

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)30.0(86.0)30.0(86.0)30.0(86.0)32.0(89.6)31.0(87.8)32.0(89.6)32.0(89.6)32.0(89.6)33.0(91.4)33.0(91.4)31.0(87.8)30.0(86.0)33.0(91.4)
Average high °C (°F)26.8(80.24)26.85(80.33)26.82(80.28)27.58(81.64)28.41(83.14)29.18(84.52)29.3(84.74)29.65(85.37)29.79(85.62)29.56(85.21)28.33(82.99)27.23(81.01)28.29(82.92)
Daily mean °C (°F)25.62(78.12)25.62(78.12)25.62(78.12)26.41(79.54)27.26(81.07)28.06(82.51)28.28(82.9)28.56(83.41)28.64(83.55)28.34(83.01)27.23(81.01)26.16(79.09)27.15(80.87)
Average low °C (°F)23.93(75.07)23.76(74.77)23.66(74.59)24.31(75.76)25.23(77.41)25.99(78.78)26.33(79.39)26.63(79.93)26.74(80.13)26.47(79.65)25.52(77.94)24.58(76.24)25.26(77.47)
Record low °C (°F)22.0(71.6)21.0(69.8)19.0(66.2)21.0(69.8)22.0(71.6)24.0(75.2)25.0(77.0)25.0(77.0)25.0(77.0)24.0(75.2)21.0(69.8)21.0(69.8)19.0(66.2)
Average precipitation mm (inches)41.05(1.62)37.78(1.49)53.22(2.1)48.72(1.92)88.43(3.48)41.75(1.64)57.1(2.25)79.85(3.14)103.16(4.06)105.67(4.16)112.54(4.43)62.91(2.48)69.35(2.73)
Average precipitation days (≥ 1.0 mm)11.012.2711.3611.4516.010.7312.8214.7317.9119.2718.3613.6414.13
Average relative humidity (%)76.9876.4776.1276.8278.2378.4178.4978.2577.7677.0177.7677.0977.45
Mean monthly sunshine hours10.7311.0210.8911.3612.8313.0912.8111.2511.210.028.198.2110.97

Climate Graph

The chart below shows the mean monthly temperature and precipitation of San Juan in recent years.

San Juan

San Juan Temperature by Month

September
28.64°C | 83.55°F
August
28.56°C | 83.41°F
October
28.34°C | 83.01°F
July
28.28°C | 82.9°F
June
28.06°C | 82.51°F
May
27.26°C | 81.07°F
November
27.23°C | 81.01°F
April
26.41°C | 79.54°F
December
26.16°C | 79.09°F
January
25.62°C | 78.12°F
February
25.62°C | 78.12°F
March
25.62°C | 78.12°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature31.0°C (87.8°F)29.61°C (85.3°F)29.0°C (84.2°F)
Avg Temperature29.0°C (84.2°F)28.48°C (83.26°F)28.0°C (82.4°F)
Min Temperature27.0°C (80.6°F)26.0°C (78.8°F)25.0°C (77.0°F)
Dew PointMaxAverageMin
Dew Point24.0°C (75.2°F)23.71°C (74.68°F)23.0°C (73.4°F)
PrecipitationMaxAverageMinSum
Precipitation9.4mm | 0.37in2.79mm | 0.11in0.2mm | 0.01in86.6mm | 3.41in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind26.0kmh | 16.16mph17.0kmh | 10.56mph13.0kmh | 8.08mph
Gust Wind35.0kmh | 21.75mph22.97kmh | 14.27mph18.0kmh | 11.18mph
Sea Level PressureMaxAverageMin
Sea Level Pressure9.4mb2.79mb0.2mb
San Juan

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-08-0128 | 82.424 | 75.28119 | 11.8129.94 | 10140.2 | 0.01
2019-08-0228 | 82.424 | 75.28019 | 11.8129.94 | 10142.3 | 0.09
2019-08-0329 | 84.224 | 75.27820 | 12.4330.0 | 10161.5 | 0.06
2019-08-0429 | 84.224 | 75.27922 | 13.6730.0 | 10161.9 | 0.07
2019-08-0528 | 82.424 | 75.27923 | 14.2930.0 | 10161.3 | 0.05
2019-08-0628 | 82.424 | 75.28021 | 13.0530.0 | 10163.0 | 0.12
2019-08-0728 | 82.424 | 75.28014 | 8.730.03 | 10174.8 | 0.19
2019-08-0828 | 82.424 | 75.28014 | 8.730.03 | 10173.1 | 0.12
2019-08-0929 | 84.224 | 75.27913 | 8.0830.0 | 10162.1 | 0.08
2019-08-1029 | 84.224 | 75.27917 | 10.5630.0 | 10160.5 | 0.02
2019-08-1128 | 82.423 | 73.47618 | 11.1830.0 | 10163.9 | 0.15
2019-08-1229 | 84.223 | 73.47815 | 9.3229.97 | 10152.5 | 0.1
2019-08-1329 | 84.224 | 75.27917 | 10.5629.97 | 10150.9 | 0.04
2019-08-1429 | 84.224 | 75.27917 | 10.5630.03 | 10172.0 | 0.08
2019-08-1529 | 84.224 | 75.28021 | 13.0530.03 | 10170.7 | 0.03
2019-08-1628 | 82.424 | 75.28118 | 11.1830.03 | 10173.5 | 0.14
2019-08-1728 | 82.423 | 73.47816 | 9.9430.0 | 10167.2 | 0.28
2019-08-1828 | 82.423 | 73.47817 | 10.5630.0 | 10163.0 | 0.12
2019-08-1929 | 84.224 | 75.27815 | 9.3230.0 | 10166.5 | 0.26
2019-08-2028 | 82.424 | 75.28114 | 8.730.0 | 10164.0 | 0.16
2019-08-2128 | 82.423 | 73.47916 | 9.9430.0 | 10162.1 | 0.08
2019-08-2228 | 82.423 | 73.47713 | 8.0829.97 | 10152.5 | 0.1
2019-08-2329 | 84.223 | 73.47717 | 10.5630.0 | 10162.4 | 0.09
2019-08-2429 | 84.224 | 75.27917 | 10.5630.0 | 10163.5 | 0.14
2019-08-2529 | 84.224 | 75.27916 | 9.9430.0 | 10160.4 | 0.02
2019-08-2629 | 84.224 | 75.27916 | 9.9429.97 | 10150.2 | 0.01
2019-08-2728 | 82.424 | 75.28116 | 9.9429.94 | 10141.2 | 0.05
2019-08-2828 | 82.423 | 73.47926 | 16.1629.85 | 10119.4 | 0.37
2019-08-2929 | 84.223 | 73.47614 | 8.729.91 | 10133.2 | 0.13
2019-08-3029 | 84.224 | 75.27713 | 8.0829.94 | 10142.8 | 0.11
2019-08-3128 | 82.424 | 75.27913 | 8.0829.94 | 10144.0 | 0.16

San Juan 10 Year Historical Weather Data

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