Weather on May 21 at Biscayne

Biscayne National Park

FLSoutheast
Avg High84°F
Avg Low74°F
Warmest200887°F
Coldest197374°F

Based on 55 years of data from Miami, FL

Planning Your Visit

May 21st in Biscayne National Park (via Miami, FL) typically brings warm spring weather, with average highs around 84°F and lows near 74°F. Over 55 years of records, the warmest May 21st was in 2008 (87°F average), while the coldest was 1973 (74°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 21st dates historically, with the wettest May 21st recording 11.02" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for May 21st in Biscayne? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202594°F78°F0"--
202495°F76°F0"--
202387°F76°F0.03"--
202280°F73°F0"--
202183°F69°F0"--
202090°F80°F0.08"--
201985°F--0"--
201883°F70°F3.18"--
201784°F78°F0"--
201685°F76°F0"--
201585°F75°F0"--
201481°F75°F0"--
201385°F73°F5.72"--
201283°F71°F0.69"--
201184°F78°F0"--
201084°F73°F0.13"0"
200982°F71°F1.04"0"
200895°F79°F0.03"--
200782°F70°F11.02"0"
200686°F74°F0"0"
200590°F78°F0"0"
200481°F74°F0"0"
200384°F79°F0"0"
200291°F69°F0.56"0"
200186°F78°F0"0"
200083°F76°F0"0"
199985°F78°F0"0"
199883°F73°F0"0"
199788°F79°F0"0"
199680°F73°F2.84"0"
199583°F74°F3.58"0"
199482°F67°F0"--
199388°F72°F0"0"
199280°F75°F0"0"
199181°F78°F0"0"
199082°F75°F0"0"
198983°F76°F0"0"
198884°F75°F0"0"
198780°F76°F0"0"
198683°F65°F0"0"
198592°F70°F0"0"
198483°F78°F0"0"
198381°F78°F0"0"
198282°F74°F0.3"0"
198187°F75°F1.3"0"
198083°F75°F2.44"0"
197981°F72°F0"0"
197882°F76°F0"0"
197778°F74°F0"0"
197680°F69°F1.32"0"
197589°F75°F0"0"
197481°F73°F1.7"0"
197383°F65°F0"0"
197285°F67°F0.71"0"
197190°F71°F0"0"

May 21 at Nearby Parks

Holiday Weather at Biscayne

Official NPS WebsiteVisit nps.gov/bisc for park information, alerts, and reservations

Explore More at Biscayne

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