May Weather in Islamorada, United States

Last updated: February 24, 2025

Experience the enchanting climate of Islamorada in May, where the maximum temperature reaches a pleasant 29°C (84°F) and the average hovers around 26°C (79°F). With minimums dipping to 21°C (70°F), this tropical paradise provides the perfect backdrop for outdoor adventures. However, be prepared for occasional showers, as the month sees around 157 mm (6.2 in) of precipitation over 13 days, contributing to the lush surroundings. The humidity level is typically around 71%, adding to the warm, inviting atmosphere that characterizes this beautiful destination. Embrace the vibrant natural beauty and enjoy the unique charm that Islamorada offers in May!

May Temperature in Islamorada

In May, temperatures in Islamorada begin to rise, marking the transition into the warmer months. With a minimum of 21°C (70°F) and an average temperature of 26°C (79°F), the island enjoys pleasant warmth that draws visitors to its stunning beaches. The maximum temperature peaks at 29°C (84°F), offering plenty of sunshine for outdoor activities. This month not only showcases a noticeable increase from the cooler April temperatures but also sets the stage for the hotter summer ahead, making May an ideal time to explore the vibrant marine life and lush landscapes of this tropical paradise.

May Weather in Islamorada: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Islamorada, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec717373777982838382817673
Data source: Temperature data for Islamorada 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 Islamorada

May is a significant month for precipitation in Islamorada, as it marks a drastic uptick in rainfall, with 157 mm (6.2 in) of rain recorded over 13 days. This surge is notable, particularly when compared to the milder totals of the preceding months, which generally see less than 50 mm. The transition from April's 50 mm to May's heavy showers signals the onset of the rainy season, bringing lush greenery and vibrant landscapes to the area. With persistent rain throughout the month, May acts as a precursor to the summer downpours that dominate the subsequent months, setting the tone for a wet and lively season ahead.

May Precipitation Trends in Islamorada

The chart displays monthly precipitation patterns in Islamorada, 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.
JanFebMarAprMayJunJulAugSepOctNovDec243223501571251131172041367142
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Islamorada

As May approaches in Islamorada, the humidity makes a noticeable shift, dropping to 71% from higher levels earlier in the year. This trend continues the gradual decline that began in January, when humidity peaked at 81%. By April, it had already decreased to 73%, setting the stage for a more comfortable atmosphere in late spring. Following May, humidity levels begin to rise again in June, hinting at the arrival of summer. This dance between humidity and the changing seasons presents a unique charm to Islamorada, where the air feels fresher as the warm month of May unfolds, providing a refreshing escape before the sticky summer months settle in.

May Average Humidity in Islamorada

This chart illustrates the average monthly humidity levels in Islamorada, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
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 Islamorada

In May, the UV Index in Islamorada peaks at 12, categorizing it as extreme exposure. This trend is consistent with the preceding month, April, which also recorded a UV Index of 12. As summer approaches, locals and visitors alike should be particularly cautious, as the burn time narrows to just 10 minutes under the intense sun. Notably, this month stands out as part of a stretch from April to August, where the UV Index remains at an extreme level of 12 or higher, underscoring the importance of sun protection during this time. To learn more about the UV Index trends throughout the year, visit Islamorada UV Index.

Maximum UV Index Levels in Islamorada for May

The chart shows the monthly maximum UV Index (UVI) for Islamorada 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.
JanFebMarAprMayJunJulAugSepOctNovDec69101212131212121086
Data source: Islamorada 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.

May Sunshine in Islamorada

May in Islamorada shines brightly with an impressive 330 hours of sunshine, marking a slight dip from the sun-soaked April that boasted 338 hours. This month continues to fall within a delightful pattern of consistent sunlight, following a trend of increasing brightness through the spring months. March and April set the stage with 328 and 338 hours respectively, while June dips to 311 hours, showcasing a natural ebb and flow to the region's sunshine. As the summer approaches, the vibrant energy of May is a reminder of the sun-drenched days that lie ahead, making it an ideal time for outdoor adventures and soaking in the tropical warmth.

Monthly Sunshine Duration in Islamorada: May Highlighted

The May sunshine duration represents the total number of hours Islamorada experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec230h283h328h338h330h311h341h334h313h304h281h290h
Data source: Islamorada May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Islamorada During May

Islamorada experiences a delightful transition into sunnier days as it approaches mid-year, with May displaying a 57% chance of sunshine. This marks a slight decrease from April's 59%, but it remains significantly more promising compared to the summer months. As temperatures rise in June and July, the likelihood of clear skies plummets to just 17% and 25%, respectively. Meanwhile, the early months of the year exhibit a mixed bag, with February and March peaking at 67%, providing a bright start to 2023. With May’s weather promising a decent amount of sunshine, it's an ideal time to bask in the sun before the hotter, wetter season sets in.

Percentage of Sunny Days in May in Islamorada

The chart illustrates the percentage of sunny days in Islamorada throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Islamorada experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%67%67%59%57%17%25%26%33%50%50%70%
Data source: Islamorada May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Islamorada in May

As May arrives in Islamorada, the days grow noticeably longer, with daylight stretching to an impressive 13 hours. This trend of increasing sunlight begins in January with only 10 hours and steadily climbs through the spring months. By March, daylight reaches 12 hours, and April maintains this trajectory, setting the stage for May's peak. Following this high point, summer months like June and July also boast 13 hours of daylight, creating a vibrant atmosphere perfect for outdoor activities. As the year progresses into August and September, daylight begins its slow descent back to 12 hours and subsequently to 10 hours in the winter, reflecting the natural ebb and flow of seasons. This pattern enriches the experience of living in this tropical paradise, where each day offers the promise of sun-soaked adventures.

Average Daylight Hours in Islamorada for May

The chart illustrates the variation in daylight duration in Islamorada throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 46m11h 18m12h 1m12h 44m13h 21m13h 38m13h 29m12h 57m12h 15m11h 32m10h 54m10h 36m
Data source: Islamorada daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Islamorada

In May, Islamorada enjoys a mild average wind speed of 5.7 m/s (13 mph), maintaining the same gentle breezes from April. This consistency sets the stage for a tropical paradise, perfect for outdoor activities and watersports. As the spring transition fully blooms, the winds remain stronger compared to the summer months ahead, particularly July, which features a significant drop to 4.2 m/s (9 mph). Thus, May acts as a sweet spot, where the balmy temperatures harmonize with refreshing winds, making it an ideal time to bask in the beauty of this picturesque escape.

Average May Wind Speed in Islamorada

The chart displays monthly wind speed patterns in Islamorada, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.86.16.35.75.7 m/s5.44.25.03.35.05.34.5
Data source: Islamorada May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Islamorada Compares to Other Months

The weather in Islamorada changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Islamorada and find detailed weather information for every month.

May and January present distinct differences in weather patterns. In May, temperatures are warmer, with minimums around 21°C (70°F) and averages reaching 26°C (79°F), peaking at a maximum of 29°C (84°F). This month also experiences a higher level of precipitation, totaling 157 mm (6.2 in) over approximately 13 days, contributing to a humidity level of 71%. In contrast, January is cooler, starting at a minimum temperature of 10°C (50°F) and averaging 21°C (71°F), with a maximum of 26°C (79°F). The precipitation is significantly lower in January, with only 24 mm (0.9 in) over 4 days, alongside a slightly higher humidity level of 81%. For more detailed weather insights, check Islamorada weather in January.

When comparing the weather between May and February in Islamorada, it's evident that May is notably warmer and wetter. May experiences minimum temperatures around 21°C (70°F) and averages around 26°C (79°F), with maximum temperatures reaching 29°C (84°F). In contrast, February's temperatures are milder, starting from a minimum of 14°C (58°F) and averaging 23°C (74°F), with a maximum of 26°C (79°F). Furthermore, May sees significantly more rainfall, with precipitation totaling 157 mm (6.2 in) over 13 days, compared to February's 32 mm (1.3 in) over just 7 days. Despite this, February tends to have slightly higher humidity at 79%, compared to May's 71%. For a deeper dive into February's climate specifics, you can refer to Islamorada weather in February.

In comparing the weather of May and March, it’s evident that May is generally warmer and more humid. During May, temperatures range from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), with an average of 26°C (79°F), while March sees slightly cooler temperatures, with a minimum of 14°C (58°F) and a maximum of 26°C (80°F), averaging 23°C (74°F). Additionally, May experiences significantly higher precipitation, at 157 mm (6.2 in) over approximately 13 days, compared to March's much lighter rainfall of 23 mm (0.9 in) over just 3 days. For those interested in exploring March weather specifics, you can find more information here: Islamorada weather in March. Overall, May is characterized by warmth and humidity, making it quite different from the milder and drier conditions of March.

In comparing the weather of April and May, it's clear that May tends to be warmer, with average temperatures rising from 25°C (77°F) in April to 26°C (79°F) in May. Both months experience a maximum temperature of 29°C (84°F), but April has a slightly lower minimum temperature of 17°C (63°F) compared to May's 21°C (70°F). Precipitation also sees a significant increase in May, with 157 mm (6.2 in) over 13 days, compared to just 50 mm (2.0 in) on 9 days in April. Humidity remains fairly consistent, with April at 73% and May slightly lower at 71%. For more specific insights on April's conditions, you can check Islamorada weather in April.

In comparing the weather between May and June, we see that June tends to be warmer. The minimum temperature in June is 24°C (76°F), slightly higher than May's 21°C (70°F), and the average temperature also rises from 26°C (79°F) in May to 28°C (82°F) in June. Additionally, June has higher maximum temperatures, reaching up to 31°C (88°F) compared to May's maximum of 29°C (84°F). However, June experiences less rainfall with a total of 125 mm (4.9 in) over 18 days, in contrast to May's 157 mm (6.2 in) over 13 days. Humidity is slightly lower in June at 69%, compared to 71% in May. For more details, you can check the Islamorada weather in June.

In May, the weather tends to be slightly cooler with average temperatures ranging from 21°C (70°F) to a maximum of 29°C (84°F), while July experiences warmer conditions, with temperatures starting at a minimum of 25°C (78°F) and peaking at 31°C (87°F). Additionally, May sees higher levels of precipitation, averaging 157 mm (6.2 in) over approximately 13 days, compared to July's 113 mm (4.4 in) spread over 18 days. Both months feature similar humidity levels, hovering around 70-71%. For more details about the weather in July, you can check out Islamorada weather in July.

In comparing the weather between May and August, it becomes evident that both months share warm temperatures, but August tends to be slightly hotter on average. In May, temperatures range from a minimum of 21°C (70°F) to a maximum of 29°C (84°F) with an average of 26°C (79°F). In contrast, August experiences higher minimum temperatures of 25°C (78°F) and averages around 29°C (84°F), peaking at 30°C (87°F).

Rainfall is another differentiating factor; May sees more precipitation with a total of 157 mm (6.2 in) spread across 13 days, while August records 117 mm (4.6 in) over 18 days, highlighting the slightly drier conditions despite more rainy days. Humidity levels are similar, with May at 71% and August at 72%. For more detailed information on August weather specifically, you can visit Islamorada weather in August.

May and September in Islamorada showcase a gradual transition in weather characteristics. In May, temperatures range from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), with an average of 26°C (79°F). The month experiences significant rainfall, with 157 mm (6.2 in) over approximately 13 days, alongside a humidity level of 71%. In contrast, September boasts slightly warmer conditions, with minimum temperatures of 25°C (77°F) and maximums reaching 30°C (87°F), averaging 28°C (83°F). However, it also sees increased precipitation, totaling 204 mm (8.0 in) over about 18 days, with humidity rising to 76%. For more details on the weather in September, check out Islamorada weather in September.

When comparing the weather in May and October, we notice some intriguing differences. May typically features warmer temperatures, with averages around 26°C (79°F) and a maximum of 29°C (84°F), while October has a slightly lower minimum of 18°C (65°F) but similar average and maximum temperatures at 27°C (81°F) and 30°C (86°F), respectively. Precipitation is more frequent in May, with 157 mm (6.2 in) spread across 13 days, compared to October's 136 mm (5.3 in) over 17 days, indicating a slightly drier October. Additionally, October exhibits higher humidity at 79%, whereas May has a humidity level of 71%. For a closer look at the specific conditions, you can check Islamorada weather in October.

May and November present distinct weather patterns. In May, temperatures range from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), with an average of 26°C (79°F). The month is characterized by higher rainfall, totaling 157 mm (6.2 in) over about 13 days, and humidity levels around 71%. In contrast, November sees slightly cooler temperatures, with a minimum of 15°C (60°F) and a maximum of 28°C (83°F), while the average remains close at 25°C (76°F). Precipitation decreases significantly in November to 71 mm (2.8 in) over 10 days, accompanied by higher humidity at 80%. For more specifics on November weather, you can check Islamorada weather in November.

In May, the weather in Islamorada tends to be warmer, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), averaging around 26°C (79°F). The month experiences significant rainfall, averaging 157 mm (6.2 in) over 13 days, resulting in a humidity level of 71%. In contrast, December offers a much cooler climate, with temperatures varying from a low of 13°C (56°F) to a high of 26°C (79°F), averaging 23°C (73°F). This month sees considerably less precipitation, around 42 mm (1.7 in) spread over just 6 days, and a slightly higher humidity level of 81%. For more detailed insights about December weather, you can visit Islamorada weather in December.

Compare Islamorada's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Islamorada

As May arrives in Islamorada, the weather begins to shift, welcoming warmer and more humid days compared to the preceding months. With temperatures peaking at around 29°C (84°F), this spring month sees a delightful blend of sunshine and occasional rain, resulting in 157 mm (6.2 in) of precipitation over approximately 13 days. Humidity remains at a notable 71%, creating a lush, tropical atmosphere perfect for outdoor adventures. As the transition to summer begins, visitors can expect vibrant landscapes and an enticing mix of clear skies and refreshing showers. For more detailed information about the climate, check out the full insights at Islamorada Climate.