Climate Key Biscayne - Florida
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 75 | 76 | 78 | 81 | 83 | 86 |
| Average low in ºF Av. low Lo | 62 | 64 | 66 | 69 | 74 | 77 |
| Av. precipitation in inch Av. precip. Pre. | 2.40 | 2.26 | 3.05 | 2.80 | 5.34 | 8.98 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 89 | 89 | 87 | 85 | 80 | 77 |
| Average low in ºF Av. low Lo | 78 | 78 | 77 | 74 | 70 | 65 |
| Av. precipitation in inch Av. precip. Pre. | 5.26 | 7.61 | 8.53 | 5.92 | 3.02 | 1.93 |
Key Biscayne has a tropical monsoon climate, defined by warm winters and hot summers. The area is wet overall, with a strong seasonal pattern where summers are significantly wetter than the drier winter months. Heavy seasonal downpours or afternoon thunderstorms can sometimes occur during the warmer months, contributing to the high annual precipitation.
Key Biscayne Climate Graph - Florida Climate Chart
Daily normals Key Biscayne - Florida - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 74.9 | 62.1 | 0.08 | 0.08 | 0.00 | 0.00 |
| 2 Jan | 74.8 | 62.0 | 0.12 | 0.12 | 0.00 | 0.00 |
| 3 Jan | 74.7 | 61.9 | 0.20 | 0.20 | 0.00 | 0.00 |
| 4 Jan | 74.6 | 61.8 | 0.24 | 0.24 | 0.00 | 0.00 |
| 5 Jan | 74.6 | 61.8 | 0.28 | 0.28 | 0.00 | 0.00 |
| 6 Jan | 74.5 | 61.7 | 0.31 | 0.31 | 0.00 | 0.00 |
| 7 Jan | 74.5 | 61.6 | 0.35 | 0.35 | 0.00 | 0.00 |
| 8 Jan | 74.4 | 61.6 | 0.43 | 0.43 | 0.00 | 0.00 |
| 9 Jan | 74.4 | 61.5 | 0.47 | 0.47 | 0.00 | 0.00 |
| 10 Jan | 74.4 | 61.5 | 0.55 | 0.55 | 0.00 | 0.00 |
| 11 Jan | 74.3 | 61.5 | 0.59 | 0.59 | 0.00 | 0.00 |
| 12 Jan | 74.3 | 61.4 | 0.71 | 0.71 | 0.00 | 0.00 |
| 13 Jan | 74.3 | 61.4 | 0.75 | 0.75 | 0.00 | 0.00 |
| 14 Jan | 74.3 | 61.4 | 0.83 | 0.83 | 0.00 | 0.00 |
| 15 Jan | 74.3 | 61.4 | 0.91 | 0.91 | 0.00 | 0.00 |
| 16 Jan | 74.4 | 61.4 | 0.98 | 0.98 | 0.00 | 0.00 |
| 17 Jan | 74.4 | 61.4 | 1.06 | 1.06 | 0.00 | 0.00 |
| 18 Jan | 74.4 | 61.5 | 1.14 | 1.14 | 0.00 | 0.00 |
| 19 Jan | 74.4 | 61.5 | 1.22 | 1.22 | 0.00 | 0.00 |
| 20 Jan | 74.5 | 61.5 | 1.34 | 1.34 | 0.00 | 0.00 |
| 21 Jan | 74.5 | 61.6 | 1.42 | 1.42 | 0.00 | 0.00 |
| 22 Jan | 74.6 | 61.6 | 1.50 | 1.50 | 0.00 | 0.00 |
| 23 Jan | 74.6 | 61.7 | 1.61 | 1.61 | 0.00 | 0.00 |
| 24 Jan | 74.7 | 61.7 | 1.69 | 1.69 | 0.00 | 0.00 |
| 25 Jan | 74.7 | 61.8 | 1.81 | 1.81 | 0.00 | 0.00 |
| 26 Jan | 74.8 | 61.9 | 1.93 | 1.93 | 0.00 | 0.00 |
| 27 Jan | 74.9 | 61.9 | 2.01 | 2.01 | 0.00 | 0.00 |
| 28 Jan | 74.9 | 62.0 | 2.09 | 2.09 | 0.00 | 0.00 |
| 29 Jan | 75.0 | 62.1 | 2.20 | 2.20 | 0.00 | 0.00 |
| 30 Jan | 75.1 | 62.2 | 2.28 | 2.28 | 0.00 | 0.00 |
| 31 Jan | 75.2 | 62.3 | 2.40 | 2.40 | 0.00 | 0.00 |
Weather history Key Biscayne - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | 89.1 | 78.1 | - | - | - |
| 02 Jun | 91.0 | 77.0 | - | - | - |
| 03 Jun | - | - | - | - | - |
| 04 Jun | - | - | - | - | - |
| 05 Jun | - | - | - | - | - |
| 06 Jun | - | - | - | - | - |
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| 30 Jun | - | - | - | - | - |
Past weather Key Biscayne
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 90.1 ºF | 75 ºF | |
| Average low temperature Av. low temp. | 77.6 ºF | 62 ºF | |
| Total precipitation Total precip. | - inch | 2.40 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 91.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 89.1 ºF | - | |
| Highest min temperature Highest min temp. | 78.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 77.0 ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Key Biscayne - Florida
| Country | United States | |
|---|---|---|
| State | Florida | |
| County | - | |
| City | Key Biscayne | |
| Zip Code | 33149 | |
| Longitude | -80.16 dec. degr. | |
| Latitude | 25.69 dec. degr. | |
| Altitude - Elevation | 3ft | |
| ICAO | - | |
| IATA | - |
Date and Time Key Biscayne - Florida
| Local Time | 07:20 PM | |
|---|---|---|
| Sunrise | 06:28 AM | |
| Sunset | 08:15 PM | |
| Day/Night | Day | |
| Timezone | New_York -5:00 | |
| Timezone DB | America - New York |
Map of Key Biscayne - Florida
USGS National Map — Open interactive map
Key Biscayne weather averages
| Annual high temperature | 82ºF |
| Annual low temperature | 71ºF |
| Average annual precip. | 57.1 inch |
Station Data
Monthly averages Key Biscayne
Longitude: -80.1628, Latitude: 25.6937
Average weather Key Biscayne, FL - 33149
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...