Climateby Month

Miami vs San Diego weather

Miami, FL and San Diego, CA · 2268 mi apart

July highs: 91°F in Miami, 75°F in San Diego (Miami is 16°F warmer). January highs: 76°F and 66°F (Miami is 10°F warmer). Miami has about 141 wet days a year, San Diego about 40. Muggy days: about 251 a year in Miami, about 16 in San Diego.

Miami, FL

40°50°60°70°80°90°100° January: normal high 76°F (24°C), low 61°F (16°C) 76° 61° February: normal high 78°F (26°C), low 63°F (17°C) March: normal high 81°F (27°C), low 66°F (19°C) April: normal high 84°F (29°C), low 70°F (21°C) May: normal high 87°F (31°C), low 73°F (23°C) June: normal high 89°F (32°C), low 76°F (24°C) July: normal high 91°F (33°C), low 78°F (26°C) 91° 78° August: normal high 91°F (33°C), low 78°F (26°C) September: normal high 89°F (32°C), low 77°F (25°C) October: normal high 86°F (30°C), low 74°F (23°C) November: normal high 81°F (27°C), low 68°F (20°C) December: normal high 78°F (26°C), low 64°F (18°C) JFMAMJJASOND

Best months: January, February, March

San Diego, CA

40°50°60°70°80°90°100° January: normal high 66°F (19°C), low 50°F (10°C) 66° 50° February: normal high 66°F (19°C), low 52°F (11°C) March: normal high 67°F (19°C), low 55°F (13°C) April: normal high 69°F (21°C), low 57°F (14°C) May: normal high 70°F (21°C), low 60°F (16°C) June: normal high 72°F (22°C), low 63°F (17°C) July: normal high 75°F (24°C), low 66°F (19°C) August: normal high 77°F (25°C), low 68°F (20°C) 77° 68° September: normal high 77°F (25°C), low 66°F (19°C) October: normal high 75°F (24°C), low 62°F (17°C) November: normal high 71°F (22°C), low 55°F (13°C) December: normal high 66°F (19°C), low 50°F (10°C) JFMAMJJASOND

Best months: May, June

Which city for what

  • Milder winters: Miami (January high 76°F vs January high 66°F)
  • Cooler summers: San Diego (July high 75°F vs July high 91°F)
  • Fewer wet days: San Diego (40 a year vs 141 a year)
  • Less humid: San Diego (16 muggy days vs 251 muggy days)
  • More comfortable days: San Diego (197 a year vs 52 a year)

Listed only where the difference is at least 3°F in highs, 10 days a year or 3 in of snow.

Season by season

SeasonAvg high MiamiAvg high San DiegoWet days MiamiWet days San Diego
Winter (Dec-Feb)78°F66°F2219
Spring (Mar-May)84°F68°F2412
Summer (Jun-Aug)90°F75°F542
Fall (Sep-Nov)85°F74°F417

Side by side over a year

MiamiSan Diego
Hot days (90°F+)923
Freezing nights00
Muggy days25116
Comfortable days52197
Precipitation67.4 in9.8 in
Snowfall0.0 in0.0 in
Frost datesfrost-freefrost-free
Daylight in June / December13.7 h / 10.6 h14.3 h / 10.0 h
Best monthsJanuary, February, MarchMay, June

Day counts from each city's daily records, 1991-2020. Comfortable days: highs 65-80°F and dew point under 60°F.

Month by month

MonthHigh MiamiHigh San DiegoWet days MiamiWet days San Diego
January76°F66°F87
February78°F66°F77
March81°F67°F66
April84°F69°F74
May87°F70°F112
June89°F72°F181
July91°F75°F171
August91°F77°F190
September89°F77°F181
October86°F75°F142
November81°F71°F94
December78°F66°F86

Both charts use the same temperature scale.

Where the numbers come from

  • Miami, FL: temperature from Miami Intl Airport (USW00012839), 7.7 mi W of the city center; precipitation from Miami Intl Airport (USW00012839). NOAA 1991-2020 normals and daily records.
  • San Diego, CA: temperature from San Diego Lindbergh Fld (USW00023188), 2.0 mi NW of the city center; precipitation from San Diego Lindbergh Fld (USW00023188). NOAA 1991-2020 normals and daily records.

Every station for each city, including humidity and frost, is listed on the city page. Methodology.