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May Weather in Cudjoe Key, United States

Last updated: June 24, 2025

In May, the average temperature in Cudjoe Key, United States hovers around 26°C (79°F), offering warm and inviting weather. Expect temperatures to range from a comfortable 22°C (72°F) to a balmy 29°C (84°F). However, be prepared for some showers as the area receives about 136 mm (5.4 in) of precipitation over 11 days. With an average humidity of 71%, the tropical feel makes it a perfect time to explore the beauty of this destination!

May Temperature in Cudjoe Key

In May in Cudjoe Key, the average temperature is 26°C (79°F). The maximum can reach 29°C (84°F), while the minimum can be as low as 22°C (72°F). This makes it an ideal time for travelers seeking warm and pleasant weather.

May Weather in Cudjoe Key: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Cudjoe Key, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cudjoe Key, May typically has an average temperature of 26°C (79°F), with highs reaching up to 29°C (84°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec707373777982838482817673
Data source: Temperature data for Cudjoe Key generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Cudjoe Key

In Cudjoe Key in May, the total precipitation amount reaches 136 mm (5.4 in) over the course of 11 days.

May Precipitation Trends in Cudjoe Key

The chart displays monthly precipitation patterns in Cudjoe Key, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Cudjoe Key, May typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec242515421361051091111891317037
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cudjoe Key

In Cudjoe Key in May, humidity is 71%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel somewhat stifling but offering a tropical ambiance that can be both invigorating and exhausting at the same time.

May Average Humidity in Cudjoe Key

This chart illustrates the average monthly humidity levels in Cudjoe Key, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Cudjoe Key is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cudjoe Key

In Cudjoe Key in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Cudjoe Key.

Maximum UV Index Levels in Cudjoe Key for May

The chart shows the monthly maximum UV Index (UVI) for Cudjoe Key in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Cudjoe Key typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111212131212111086
Data source: Cudjoe Key May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Cudjoe Key Compares to Other Months

Weather in Cudjoe Key varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Cudjoe Key, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Cudjoe Key, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)24 mm (0.9 inches)81%high
February Weather23°C (73°F)25 mm (1.0 inches)79%very high
March Weather23°C (74°F)15 mm (0.6 inches)76%extreme
April Weather25°C (77°F)42 mm (1.7 inches)73%extreme
May Weather26°C (79°F)136 mm (5.4 inches)71%extreme
June Weather28°C (82°F)105 mm (4.1 inches)69%extreme
July Weather28°C (83°F)109 mm (4.3 inches)70%extreme
August Weather29°C (84°F)111 mm (4.4 inches)72%extreme
September Weather28°C (83°F)189 mm (7.4 inches)76%extreme
October Weather27°C (81°F)131 mm (5.2 inches)79%very high
November Weather25°C (77°F)70 mm (2.7 inches)80%very high
December Weather23°C (73°F)36 mm (1.4 inches)81%high

Compare Cudjoe Key's Climate with Cities Worldwide