April Weather in Islamorada, United States

Last updated: February 24, 2025

In Islamorada, United States, the weather in April showcases a delightful blend of warmth and humidity, with maximum temperatures reaching up to 29°C (84°F) and an average of 25°C (77°F). The month is characterized by a refreshing minimum temperature of 17°C (63°F), creating a pleasant environment for outdoor activities. However, expect some showers, as 50 mm (2.0 in) of precipitation falls over 9 days, contributing to a humidity level of 73% that adds to the tropical ambiance. This combination of conditions makes April a captivating time to experience the charm of this beautiful location.

April Temperature in Islamorada

In April, temperatures in Islamorada begin to warm noticeably as spring takes hold. The month's minimum temperature rises to a comfortable 17°C (63°F), while average highs reach an inviting 29°C (84°F), making it one of the warmest months so far. With an average temperature of 25°C (77°F), April beckons visitors to embrace outdoor activities, from fishing to snorkeling in the vibrant waters. This trend of increasing warmth continues, as April serves as a precursor to the sultry summer months ahead, offering an idyllic escape for those seeking sun-kissed days and balmy evenings.

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

The chart illustrates April 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.

April Precipitation in Islamorada

In April, Islamorada experiences a noticeable increase in precipitation, with an average of 50 mm (2.0 in) of rain falling over 9 days. This uptick marks a shift from the drier months of January through March, which see significantly less rainfall, averaging only around 24 mm to 32 mm. As the transition to late spring unfolds, April not only welcomes more rain but also sets the stage for the heavier downpours of the upcoming summer months, particularly May, which averages 157 mm (6.2 in). The rise in rainy days and volume in April hints at the region's shift towards a more humid climate, emphasizing the importance of preparation for the wetter conditions that lie ahead.

April Precipitation Trends in Islamorada

The chart displays monthly precipitation patterns in Islamorada, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec243223501571251131172041367142
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Islamorada

In April, Islamorada experiences a noticeable decrease in humidity, dropping to 73%, which marks a shift from the higher levels seen in the earlier months of the year. This decline continues the trend of diminishing humidity from the peak of 81% in January. As spring unfolds, conditions become more comfortable, paving the way for enjoyable outdoor activities. Interestingly, the humidity gradually stabilizes in the following months, with May and June seeing only slight reductions to 71% and 69%, respectively. Thus, April serves as a transitional month, highlighting the gradual easing of the humid conditions typical in the winter months, while still retaining the lush, tropical charm that defines this vibrant locale.

April Average Humidity in Islamorada

This chart illustrates the average monthly humidity levels in Islamorada, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Islamorada

In April, the UV Index in Islamorada reaches a striking 12, classifying it in the extreme exposure category, with a burn time of just 10 minutes. This marks the continuation of a trend seen from February to April, where the index steadily climbs from 9 to its peak. As spring unfolds, residents and visitors alike should be vigilant, recognizing that the sun's rays can be exceptionally intense. Following this pattern, the UV Index remains equally challenging in May and June before tapering slightly in the latter half of the year. With the sun's potency on the rise, it's essential to stay informed about the UV Index to ensure safe outdoor enjoyment. For more details, visit Islamorada UV Index.

Maximum UV Index Levels in Islamorada for April

The chart shows the monthly maximum UV Index (UVI) for Islamorada in April, 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 April 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.

April Sunshine in Islamorada

In April in Islamorada, the sun shines brightly with a remarkable 338 hours of sunshine, marking a peak as we transition into the warm coastal months. Following a gradual increase from January's 230 hours, each month builds upon the last, showcasing the area's allure as spring unfolds. This upward trend continues as May and June maintain impressive totals of 330 and 311 hours respectively, while the summer months may see a slight dip, illustrating the region's vibrant weather patterns. April stands out not just for its hours of sunlight but as part of a consistent trend of growing brightness, heralding the arrival of warmer days and inviting countless outdoor adventures.

Monthly Sunshine Duration in Islamorada: April Highlighted

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

Chance of Sun in Islamorada During April

In April, Islamorada experiences a 59% chance of sunny weather, marking a delightful moment in the transition from winter to the warmer months. This likelihood follows a strong pattern established in the previous months, particularly March and February, where sunny days reached 67% and 67%, respectively. As we progress into May, the chance of sunshine slightly dips to 57%, but remains relatively high compared to the summer months that lie ahead, where the probability plummets to a low of 17% in June. This trend underscores April as an appealing time for outdoor activities in Islamorada, making it an ideal month for both relaxation and adventure before the summer humidity sets in.

Percentage of Sunny Days in April in Islamorada

The chart illustrates the percentage of sunny days in Islamorada throughout the year, with April 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 April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Islamorada in April

As April unfolds in Islamorada, residents and visitors enjoy 12 hours of daylight, mirroring the gradual transition of the previous month. This period marks a delightful balance as the days lengthen, creating an inviting atmosphere for outdoor activities. Notably, the month of April retains the same daylight hours as March, setting the stage for an energizing shift in May, when daylight extends to 13 hours. The trend indicates a steady increase in sunlight as spring progresses, enhancing the vibrant charm of this tropical paradise. With each passing day, the allure of longer evenings becomes a promise of memorable sunsets and adventures along the stunning Florida Keys.

Average Daylight Hours in Islamorada for April

The chart illustrates the variation in daylight duration in Islamorada throughout the year, with April 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.

April Winds in Islamorada

In Islamorada, the April winds bring a pleasant average speed of 5.7 m/s (13 mph), maintaining the breezy atmosphere typical of early spring. Notably, this month's winds are consistent with the preceding months of March and May, both also recording the same speed, suggesting a gentle persistence in the breeze that characterizes this time of year. As temperatures rise heading into summer, the winds start to taper off slightly, with June seeing a slight decrease to 5.4 m/s (12 mph). Interestingly, the year begins with slower winds in January, gradually gaining momentum before stabilizing in April and May. This seasonal shift not only enhances outdoor activities but also creates a refreshing environment for both residents and visitors, inviting them to enjoy the beauty of the Florida Keys.

Average April Wind Speed in Islamorada

The chart displays monthly wind speed patterns in Islamorada, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.86.16.35.7 m/s5.75.44.25.03.35.05.34.5
Data source: Islamorada April wind data, generated using information from the Copernicus Climate Change Service.

How April 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 April'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.

In comparing the weather of April and January, April generally presents warmer temperatures with an average high of 29°C (84°F) compared to January's average high of 26°C (79°F). The minimum temperature in April is also notably higher at 17°C (63°F), versus January’s cooler minimum of 10°C (50°F). While April experiences more precipitation, totaling 50 mm (2.0 in) over 9 days, January sees less, with only 24 mm (0.9 in) across 4 days. Additionally, April's humidity is slightly lower at 73%, while January maintains a higher humidity level of 81%. For more detailed insights, check Islamorada weather in January.

April offers warmer temperatures compared to February, with an average high of 25°C (77°F) rising to a maximum of 29°C (84°F), whereas February sees a milder average high of 23°C (74°F) and a maximum of 26°C (79°F). While February experiences less rainfall at 32 mm (1.3 in) over 7 days, April has increased precipitation, totaling 50 mm (2.0 in) spread over 9 days. Humidity levels are slightly lower in April at 73%, compared to February's 79%, contributing to a more comfortable feel during the warmer month. For more details on February weather specifically, you can check Islamorada weather in February.

In comparing the weather between March and April, it's evident that April brings warmer temperatures, with a minimum of 17°C (63°F) and an average of 25°C (77°F), as opposed to March's lower minimum of 14°C (58°F) and average of 23°C (74°F). The maximum temperatures also rise, reaching 29°C (84°F) in April compared to March's peak of 26°C (80°F). However, April experiences significantly more precipitation, totaling 50 mm (2.0 in) across 9 days, while March sees only 23 mm (0.9 in) over just 3 days. Humidity levels remain relatively comparable, with March at 76% and April at 73%. For more detailed insights on March weather patterns, check out Islamorada weather in March.

April and May exhibit noticeable differences in weather patterns. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), with an average of 25°C (77°F). The month experiences moderate precipitation, totaling 50 mm (2.0 in) over about 9 days, and humidity levels hover around 73%. In contrast, May brings slightly warmer conditions with minimum temperatures starting at 21°C (70°F) and maintaining an average of 26°C (79°F). However, it also sees a significant increase in rainfall, accumulating 157 mm (6.2 in) over 13 days, while humidity remains relatively stable at 71%. For more detailed insights, you can check out Islamorada weather in May.

April and June present contrasting weather patterns in terms of temperature and precipitation. April tends to be milder, with average temperatures around 25°C (77°F) and a maximum of 29°C (84°F), while June sees warmer temperatures, with an average of 28°C (82°F) and highs reaching 31°C (88°F). In terms of rainfall, June is significantly wetter, receiving 125 mm (4.9 in) over approximately 18 days, compared to April's 50 mm (2.0 in) over just 9 days. Despite the higher temperatures in June, the humidity slightly decreases to 69%, down from 73% in April. To learn more about specific weather conditions during this month, check out Islamorada weather in June.

April weather features a comfortable range of temperatures, with a minimum of 17°C (63°F) and an average of 25°C (77°F), peaking at a maximum of 29°C (84°F). During this month, the region experiences about 50 mm (2.0 in) of precipitation over 9 days, resulting in a relatively humid atmosphere at 73%. In contrast, July brings warmer temperatures with a minimum of 25°C (78°F), an average of 28°C (83°F), and a maximum reaching 31°C (87°F). Additionally, July is wetter, with 113 mm (4.4 in) of rainfall spread across 18 days, while humidity levels are slightly lower at 70%. For more detailed information, you can check Islamorada weather in July.

April and August in Islamorada exhibit noticeable differences in weather patterns. In April, temperatures range from a comfortable minimum of 17°C (63°F) to a maximum of 29°C (84°F), with an average of 25°C (77°F). The month experiences around 50 mm (2.0 in) of precipitation over 9 days, combined with a humidity level of 73%. In contrast, August sees higher temperatures, with a minimum of 25°C (78°F) and a maximum of 30°C (87°F), along with an average of 29°C (84°F). However, it also faces increased rainfall, totaling 117 mm (4.6 in) across 18 days, while humidity remains relatively stable at 72%. For more details on August weather in Islamorada, you can check Islamorada weather in August.

April and September showcase distinct weather patterns. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), with an average of 25°C (77°F). The month experiences about 50 mm (2.0 in) of precipitation over 9 days, along with a humidity level of 73%. In contrast, September features warmer temperatures, with a minimum of 25°C (77°F) and a slightly higher average of 28°C (83°F), peaking at 30°C (87°F). However, it sees significantly more rainfall, totaling 204 mm (8.0 in) over 18 days, contributing to a slightly increased humidity of 76%. For more detailed information, you can check Islamorada weather in September.

April and October both offer warm temperatures, but October tends to be slightly warmer with an average of 27°C (81°F) compared to April's 25°C (77°F). While April sees a maximum of 29°C (84°F), October edges slightly higher with a maximum of 30°C (86°F). However, October brings significantly more precipitation, with 136 mm (5.3 in) over 17 days, compared to April's 50 mm (2.0 in) over 9 days. Additionally, October's humidity is marginally higher at 79%, compared to 73% in April. For a detailed look at climate specifics in October, check out Islamorada weather in October.

April and November offer pleasantly mild temperatures, with average highs hovering around 25°C (77°F) in both months. April generally sees slightly warmer maximum temperatures, reaching up to 29°C (84°F), compared to November's 28°C (83°F). However, November has a marginally cooler minimum temperature of 15°C (60°F) compared to April's 17°C (63°F). Precipitation is a bit heavier in November, with 71 mm (2.8 in) spread over 10 days, compared to April's 50 mm (2.0 in) over 9 days. The humidity also rises in November to 80%, compared to April's 73%. For more detailed information on the weather during this time, check out Islamorada weather in November.

April and December exhibit distinctly different weather patterns. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), with an average temperature of 25°C (77°F). The month experiences a relatively higher precipitation level of 50 mm (2.0 in) across about 9 days, combined with a humidity level of 73%. In contrast, December showcases slightly cooler temperatures, with a minimum of 13°C (56°F), an average of 23°C (73°F), and a maximum of 26°C (79°F). Although December has lower overall precipitation at 42 mm (1.7 in) and fewer rainy days (6 days), the humidity is slightly higher at 81%. For a more detailed look at December's weather, check out Islamorada weather in December.

Compare Islamorada's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Islamorada

As April rolls in, Islamorada experiences a delightful blend of warm temperatures and moderate humidity, making it a fantastic time for outdoor adventures. With an average temperature closely hugging the comfortable 25°C (77°F) mark, visitors can enjoy pleasant days interspersed with occasional light showers—about 9 days in total, bringing just enough rain to keep the landscape vibrant. Compared to the cooler months that precede it, April marks a transition towards more inviting weather, while remaining milder than the sweltering summer ahead. For those looking to plan their ideal getaway, take a closer look at our detailed insights on the region's climate at Islamorada Climate.