Weather on December 18 at Biscayne

Biscayne National Park

FLSoutheast
Avg High77°F
Avg Low63°F
Warmest201580°F
Coldest198853°F

Based on 55 years of data from Miami, FL

Planning Your Visit

December 18th in Biscayne National Park (via Miami, FL) typically brings pleasant winter weather, with average highs around 77°F and lows near 63°F. Over 55 years of records, the warmest December 18th was in 2015 (80°F average), while the coldest was 1988 (53°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 18th dates historically, with the wettest December 18th recording 11.43" of rain. The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.

The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.

Planning for December 18th in Biscayne? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecipSnow
202581°F69°F0"--
202482°F75°F0.18"--
202376°F58°F0"--
202278°F65°F0.41"--
202176°F70°F0"--
202075°F57°F0"--
201981°F72°F0"--
201875°F56°F0"--
201781°F67°F0"--
201680°F76°F0"--
201582°F77°F0"--
201476°F60°F0"--
201376°F65°F0"--
201282°F69°F0.25"--
201177°F67°F0"--
201074°F56°F0"0"
200979°F70°F11.43"0"
200878°F71°F0"0"
200774°F53°F0"--
200679°F74°F0"0"
200581°F73°F0"0"
200474°F58°F0"0"
200363°F48°F0"0"
200275°F51°F0"0"
200183°F67°F0"0"
200081°F56°F0"0"
199980°F69°F0"0"
199874°F55°F0"0"
199765°F53°F0"0"
199680°F70°F0"0"
199579°F74°F0"0"
199481°F70°F0"0"
199378°F62°F0"0"
199277°F68°F0"0"
199174°F63°F0"0"
199081°F70°F0"0"
198982°F65°F0"0"
198862°F44°F0"0"
198771°F52°F0"0"
198680°F70°F0"0"
198575°F58°F0"0"
198476°F72°F0"0"
198380°F70°F0.69"0"
198270°F47°F0"0"
198180°F64°F0"0"
198071°F51°F0"0"
197973°F55°F0"0"
197871°F69°F0"0"
197780°F58°F0.61"0"
197674°F59°F0"0"
197582°F62°F0"0"
197465°F49°F0"0"
197368°F42°F0"0"
197280°F64°F0"0"
197180°F66°F0"0"

December 18 at Nearby Parks

Holiday Weather at Biscayne

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

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December 18 Weather at Biscayne National Park - Historical Data