June Weather in Key West, United States

Last updated: February 24, 2025

In June, Key West, United States experiences a tropical paradise characterized by warm temperatures and moderate humidity. The maximum temperature soars to 30°C (87°F), while the average remains a pleasant 28°C (82°F), with minimums dipping to 24°C (76°F) at night. Visitors should prepare for a mix of sunshine and rain, as the area receives an average of 94 mm (3.7 in) of precipitation over 14 days. With humidity levels hovering around 69%, the allure of Key West is enhanced by its vibrant atmosphere, making June an enticing time to explore this idyllic destination.

June Temperature in Key West

In June, Key West embraces the warmth of summer with average temperatures reaching a comfortable 28°C (82°F). The month begins with a pleasant minimum of 24°C (76°F), while the highs climb to a balmy 30°C (87°F), making it one of the hottest months of the year. This pattern marks a notable shift from the cooler spring months, emphasizing a trend towards rising temperatures as summer sets in. With days filled with sunshine and mild evenings, June invites locals and tourists alike to soak in the vibrant atmosphere and enjoy the stunning coastal scenery. As the transition to summer unfolds, the welcoming warmth of Key West becomes a true haven for those seeking a picturesque getaway.

June Weather in Key West: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Key West, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec717374777982838482817774
Data source: Temperature data for Key West 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.

June Precipitation in Key West

In June, Key West experiences a noticeable rise in precipitation, with 94 mm (3.7 inches) of rainfall over 14 days, setting the stage for the summer season. This increase follows a significantly wet May, which recorded 139 mm (5.5 inches), suggesting that the onset of summer brings a mix of sun and showers. The trend continues into July and August, where rainfall tends to hover around similar levels, contributing to Key West's lush landscapes. Notably, June marks a peak in precipitation days, indicating a shift from the relatively drier months early in the year. Overall, June's moist conditions are a precursor to the heavier rains that arrive in the later summer months, ensuring the vibrant flora of this tropical paradise remains well-nourished.

June Precipitation Trends in Key West

The chart displays monthly precipitation patterns in Key West, with values for each month alongside June's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec27271840139941031001721338344
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Key West

As summer approaches in Key West, June brings a noticeable dip in humidity, settling at 69%—the lowest point of the year. This subtle decrease follows a gradual decline from 81% in January, indicating the transition into warmer months. While July and August see a slight uptick to 70% and 72% respectively, the overall trend suggests a pattern of decreasing humidity as spring gives way to summer. However, as the seasons shift again in September, humidity levels begin to rise once more, highlighting the island's characteristic tropical climate. This dynamic fluctuation in humidity is an essential feature of Key West’s weather, influencing its vibrant ecosystems and inviting atmosphere.

June Average Humidity in Key West

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

June UV Index in Key West

In June, Key West experiences its peak UV Index of 13, categorizing it as extreme with a burn time of just 10 minutes. This marks a notable increase from the earlier months of the year, where the UV Index gradually climbed from 7 in January to 11 by March. Notably, both May and the following month exhibit a consistent extreme UV radiation level, emphasizing the necessity for sun protection. As the summer progresses into July and August, the Index slightly dips to 12, but still demands vigilance. Overall, the trend illustrates a significant rise in UV intensity as summer approaches, alerting residents and visitors to prioritize sun safety for their time in the sun. For more details, check out the full Key West UV Index.

Maximum UV Index Levels in Key West for June

The chart shows the monthly maximum UV Index (UVI) for Key West in June, 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.
JanFebMarAprMayJunJulAugSepOctNovDec79111212131212111086
Data source: Key West June 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.

June Sunshine in Key West

June in Key West, United States, shines with an impressive 323 hours of sunlight, a continuation of the region's delightful climatic patterns as it transitions from spring to summer. Following the peak brightness of April with 340 hours, June retains a vibrant glow, although it slightly dips as the sweltering heat of July approaches. Notably, March and April stand out as the sunniest months, setting a benchmark for the summer months ahead. As the year progresses, the sunshine remains a defining feature of Key West's charm, consistently offering ample opportunity for outdoor adventures and relaxation under the radiant skies. With each month showcasing its own unique luminosity, visitors and locals alike can bask in the pleasant warmth that makes this island paradise a year-round destination.

Monthly Sunshine Duration in Key West: June Highlighted

The June sunshine duration represents the total number of hours Key West experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec228h286h333h340h335h323h351h340h320h305h286h288h
Data source: Key West June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Key West During June

June in Key West notoriously marks a shift in weather patterns, with the chance of sunny days dropping to a mere 21%. This is a significant decline from the vibrant sunshine seen earlier in the year, particularly in the peak months of March and April, which boast probabilities as high as 72% and 64%, respectively. Meanwhile, the months leading into summer, notably February and March, offer some of the area's finest weather. As June arrives, residents and visitors alike can expect more cloud cover and the potential for rainfall, a trend that continues into the latter summer months of July and August, where chances of sunshine linger around 40% and 28%. So, while Key West remains a beautiful destination year-round, those planning a June getaway should be prepared for a mix of sun and clouds.

Percentage of Sunny Days in June in Key West

The chart illustrates the percentage of sunny days in Key West throughout the year, with June 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 Key West experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%68%72%64%58%21%40%28%36%49%50%73%
Data source: Key West June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Key West in June

In Key West, June marks a peak in daylight duration, offering 13 hours of sunlit bliss, which mirrors similar hours in both May and July. The gradual increase in daylight begins in January, where the sun graces the island for a modest 10 hours, before steadily rising to 13 hours in the late spring and summer months. As summer settles in, the vibrant days of June invite residents and visitors alike to embrace outdoor adventures and picturesque sunsets. Following this bright month, daylight starts to taper off slightly in August and further into the fall, highlighting the seasonal ebb and flow of light that defines this tropical paradise.

Average Daylight Hours in Key West for June

The chart illustrates the variation in daylight duration in Key West throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 47m11h 19m12h 1m12h 44m13h 20m13h 37m13h 27m12h 56m12h 15m11h 32m10h 55m10h 37m
Data source: Key West daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Key West

June in Key West experiences a gentle breeze, with an average wind speed of 5.8 m/s (13 mph), which marks a slight decrease from the spring months. As warmer days approach, the wind begins to relax after gradually increasing from 5.6 m/s (13 mph) in January through a peak of 6.8 m/s (15 mph) in March. This trend continues into July, where the wind further calms to 4.7 m/s (11 mph), suggesting a shift toward the more tranquil summer conditions typical of the region. Notably, June retains a consistent feel akin to its preceding months, maintaining a comfortable atmosphere that enhances the charm of this picturesque destination.

Average June Wind Speed in Key West

The chart displays monthly wind speed patterns in Key West, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.66.16.86.06.15.8 m/s4.75.63.65.36.35.5
Data source: Key West June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Key West Compares to Other Months

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

In June, the weather is significantly warmer, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (87°F), and a humidity level of 69%. This month also sees higher precipitation, with 94 mm (3.7 in) spread over 14 days. In contrast, January offers a milder climate with average temperatures between 12°C (55°F) and 26°C (79°F). The precipitation in January is much lower, totaling only 27 mm (1.1 in) over 5 days, and the humidity is slightly higher at 81%. Overall, June is characterized by heat and rain, while January provides a cooler and drier experience. For more detailed information, you can check out Key West weather in January.

June and February offer contrasting weather experiences. In June, temperatures are much warmer, with a minimum of 24°C (76°F) and an average of 28°C (82°F), peaking at around 30°C (87°F). The month also sees considerable rainfall, with about 94 mm (3.7 in) spread over 14 days, contributing to a humidity level of 69%. In contrast, February features cooler temperatures, with a minimum of 14°C (58°F), an average of 23°C (74°F), and a maximum of 26°C (80°F). Precipitation is significantly lower at 27 mm (1.1 in), occurring on only 4 days, and the humidity is higher at 79%. For a closer look at February weather, visit Key West weather in February.

In comparing the weather between June and March, June is significantly warmer with minimum temperatures averaging around 24°C (76°F), reaching highs of 30°C (87°F), while March presents milder conditions with temperatures ranging from 17°C (62°F) to a maximum of 26°C (80°F). Additionally, June experiences considerably more rainfall, with 94 mm (3.7 in) over about 14 days, contrasted with March's relatively dry 18 mm (0.7 in) spread across just 4 days. Humidity levels are also noteworthy, as June exhibits lower humidity at 69%, compared to the higher, more humid conditions of March at 76%. For more detailed insights on March weather specifically, check out Key West weather in March.

In comparing the weather of June and April, June tends to be warmer, with average temperatures reaching 28°C (82°F) and a maximum of 30°C (87°F), while April's average is slightly lower at 25°C (77°F) with a maximum of 29°C (84°F). Additionally, June experiences significantly more rainfall, with 94 mm (3.7 in) of precipitation spread over 14 days, compared to April's 40 mm (1.6 in) over just 7 days. Despite being warmer, June's humidity at 69% is slightly lower than April's 73%, contributing to a generally more comfortable atmosphere in June. For more detailed insights on April's weather, you can visit Key West weather in April.

When comparing the weather in June to that of May, June tends to be slightly warmer, with minimum temperatures of 24°C (76°F) compared to May's 22°C (72°F). The average temperature in June is 28°C (82°F), while May averages 26°C (79°F). However, June experiences less precipitation, with 94 mm (3.7 in) over 14 days, whereas May sees higher rainfall at 139 mm (5.5 in) over 11 days. Humidity levels are relatively similar, with June at 69% and May at 71%. For more detailed insights, you can check Key West weather in May.

June and July exhibit fairly similar weather patterns, with both months featuring average temperatures around 28°C (82°F). However, July tends to be slightly warmer with a minimum temperature of 25°C (78°F), compared to June's 24°C (76°F). Precipitation also increases slightly in July, reaching 103 mm (4.0 in) over 15 days, compared to June's 94 mm (3.7 in) across 14 days. Humidity remains consistent, with July at 70% and June at 69%. For more detailed weather information, you can visit Key West weather in July.

June and August offer similar warmth, with average temperatures hovering around 28°C (82°F) in June and slightly warmer at 29°C (84°F) in August. Both months experience maximum highs of 30°C (87°F) but differ slightly in their overnight temperatures, with June starting at a minimum of 24°C (76°F) and August a bit warmer at 25°C (78°F). Precipitation levels are also closely matched, with June receiving about 94 mm (3.7 in) over 14 days, while August sees a slight increase to 100 mm (3.9 in) over 15 days. Humidity rises a bit in August, averaging 72% compared to June's 69%. For more details on August weather in Key West, check out Key West weather in August.

In comparing the weather between June and September, both months experience similar average temperatures, with September typically starting off slightly warmer, featuring a minimum of 25°C (77°F) compared to June's 24°C (76°F). However, September sees a notable increase in precipitation, totaling 172 mm (6.8 in) over 17 days, which is significantly higher than June's 94 mm (3.7 in) across 14 days. Additionally, humidity levels rise in September to 76%, compared to June's 69%, creating a more humid atmosphere as summer transitions into fall. For more details, you can check Key West weather in September.

In comparing the weather between June and October, there's a noticeable shift in both temperature and humidity. June boasts a warm average temperature of 28°C (82°F) with maximums reaching up to 30°C (87°F), while October has a slightly cooler average of 27°C (81°F) and a max of 29°C (85°F). However, October experiences more rain, with an average precipitation of 133 mm (5.2 in) over 18 days compared to June's 94 mm (3.7 in) over 14 days. Humidity levels also rise in October, reaching 79% compared to June's 69%. For more detailed insights, you can visit Key West weather in October.

In June, temperatures in Key West are generally warmer, with averages around 28°C (82°F) and maximums reaching up to 30°C (87°F). This month experiences relatively high humidity levels at 69% and a significant amount of rainfall, with about 94 mm (3.7 in) over approximately 14 days. In contrast, November sees cooler temperatures, with an average of 25°C (77°F) and maximums peaking at 28°C (83°F). Although the humidity rises slightly to 80%, the month has less precipitation, with around 83 mm (3.3 in) over 10 days. For more details, check out Key West weather in November.

In June, the weather is characterized by warm temperatures, with a minimum of 24°C (76°F) and an average high of 30°C (87°F), accompanied by higher humidity at 69%. Rainfall is more frequent, with about 94 mm (3.7 in) of precipitation spread over 14 days. In contrast, December brings milder weather, featuring a minimum temperature of 15°C (59°F) and an average maximum of 27°C (80°F). The month sees significantly less rain, totaling around 44 mm (1.7 in) over just 5 days, and a higher humidity level at 81%. For more insights on December's climate, you can visit Key West weather in December.

Compare Key West's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Key West

In June, Key West experiences warm and humid conditions, with temperatures averaging a pleasant 28°C (82°F), making it a prime time for beach activities. However, this month also marks the beginning of the rainy season, with about 94 mm of precipitation spread across approximately 14 days, resulting in frequent afternoon showers that bring a refreshing break from the heat. Compared to other months, June's humidity levels, sitting at 69%, can feel a bit steamy, inviting visitors to embrace the lush, tropical ambiance of the island. Exploring the vibrant outdoor scenes or indulging in local cuisine becomes even more inviting, making June a unique blend of sun and occasional rain in Key West. For a detailed look at weather patterns, check out Key West Climate.