May Weather in Rehoboth Beach, United States

Last updated: February 24, 2025

Experience the delightful May weather at Rehoboth Beach, United States, where the atmosphere harmonizes with the stunning coastal scenery. Expect maximum temperatures reaching a pleasant 26°C (79°F), providing warm days perfect for beach outings, while the average settles at a comfortable 16°C (61°F). Early risers will appreciate the brisk minimum temperatures dipping to 5°C (41°F). While May brings an average precipitation of 135 mm (5.3 in) across 11 rainy days, the humidity lingers around 78%, ensuring a refreshing ocean breeze. Whether you’re soaking up the sun or enjoying the cooler evenings, May is a beautiful time to explore all that Rehoboth Beach has to offer.

May Temperature in Rehoboth Beach

In Rehoboth Beach, May marks a delightful transition as temperatures begin to rise, welcoming the warmth of spring. With a minimum of 5°C (41°F) and a pleasant average of 16°C (61°F), the coastal charm becomes increasingly inviting. The mercury climbs to a max of 26°C (79°F), making it an ideal time for beach activities and outdoor exploration. Compared to the chill of earlier months, May showcases a significant warming trend, with temperatures steadily increasing from April’s highs of 22°C (72°F). This shift not only elevates the atmosphere but also sets the stage for the vibrant summer season ahead, enticing visitors and locals alike to soak in the sun.

May Weather in Rehoboth Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rehoboth Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394144526070777672655245
Data source: Temperature data for Rehoboth Beach 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 Rehoboth Beach

In May, Rehoboth Beach experiences a notable uptick in precipitation, with 135 mm (5.3 in) falling over 11 days. This increase marks the wettest month of the spring season, reflecting a shift from the lighter rains of April, which accumulated 91 mm (3.6 in) over 11 days. As summer approaches, May’s precipitation not only contributes to lush landscapes but also indicates a transition into a wetter climatic pattern for the upcoming months. This trend of variable rainfall continues into June, where the total drops significantly to 78 mm (3.1 in), suggesting that May serves as a pivotal bridge between spring showers and the drier spells of summer.

May Precipitation Trends in Rehoboth Beach

The chart displays monthly precipitation patterns in Rehoboth Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec831251139113578112111102147100125
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rehoboth Beach

In May, Rehoboth Beach begins to shake off the cool grip of winter, ushering in a delightful transition marked by a humidity level of 78%. This slight drop from the previous months reflects a shift towards warmer, more comfortable conditions, as spring blossoms into early summer. Compared to April's 81%, the decrease in humidity provides the perfect backdrop for enjoying beach activities and outdoor adventures, making May an inviting month for both locals and visitors. The trend shows that as the season progresses, humidity tends to fluctuate, reaching its annual low in August at 72%, before creeping up again in the fall.

May Average Humidity in Rehoboth Beach

This chart illustrates the average monthly humidity levels in Rehoboth Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Rehoboth Beach

In May, Rehoboth Beach experiences a significant increase in UV radiation, with the UV Index peaking at 10, which falls into the very high exposure category. This trend marks a continuation of the upward trajectory observed since April when the Index reached 9. As the weather warms, residents and visitors alike should take heed, as the burn time drops to just 15 minutes, highlighting the importance of sun protection during this month. It’s crucial to be vigilant against skin damage as summer approaches, with June through August maintaining this high UV index level. Stay informed and prepared to enjoy the beautiful beaches safely by checking the latest details at Rehoboth Beach UV Index.

Maximum UV Index Levels in Rehoboth Beach for May

The chart shows the monthly maximum UV Index (UVI) for Rehoboth Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Rehoboth Beach 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 Rehoboth Beach

As the warm embrace of May arrives in Rehoboth Beach, sunshine reaches its peak with an impressive 309 hours of daylight, marking a significant increase from the previous months. This month serves as a dazzling bridge into the summer season, following a progressive rise in sunshine hours from 157 hours in January to the 276 hours enjoyed in April. The natural allure of May draws visitors to the shoreline, where the sun-kissed beaches become a vibrant tapestry of activity. As June unfolds, sunshine hours continue to climb to 338 hours, promising even longer days filled with warmth and adventure. May stands out not only for its abundance of sunlight but also for the anticipation of the lively summer days to come.

Monthly Sunshine Duration in Rehoboth Beach: May Highlighted

The May sunshine duration represents the total number of hours Rehoboth Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec157h182h264h276h309h338h360h332h286h248h226h187h
Data source: Rehoboth Beach May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rehoboth Beach During May

As spring unfolds in Rehoboth Beach, the chance of sunny weather in May stands at 46%, reflecting a slight dip compared to the preceding months like March and April. This modest likelihood precedes the peak sunniness often seen in the summer months, particularly July, which boasts a bright 55%. Interestingly, while May may be just shy of the sunnier season, it still offers a more favorable outlook than later months, like August with just 37%. Overall, May strikes a balance between the transitional spring weather and the anticipation of summer sunshine, making it a delightful time for beachgoers to enjoy the emerging warmth and bright days.

Percentage of Sunny Days in May in Rehoboth Beach

The chart illustrates the percentage of sunny days in Rehoboth Beach 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 Rehoboth Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%29%54%49%46%44%55%37%57%47%54%38%
Data source: Rehoboth Beach May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rehoboth Beach in May

As spring blossoms into summer, Rehoboth Beach experiences a notable increase in daylight duration, reaching a delightful 14 hours by May. Starting the year with just 9 hours in January, the days gradually lengthen, adding an hour each month until April. The transition into May marks a peak in daylight that mirrors the rising temperatures and vibrant beach activities, while June and July maintain this extensive daylight. Even as summer wanes into autumn, the daylight begins to gradually recede, with 13 hours in August and then 12 in September. This rhythmic shift from shorter to longer days and back again not only enhances the natural beauty of Rehoboth Beach but also invites visitors to take full advantage of its golden hours throughout the year.

Average Daylight Hours in Rehoboth Beach for May

The chart illustrates the variation in daylight duration in Rehoboth Beach throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 47m10h 45m11h 58m13h 14m14h 17m14h 49m14h 31m13h 35m12h 23m11h 8m10h 2m9h 29m
Data source: Rehoboth Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Rehoboth Beach

In Rehoboth Beach, May ushers in a gentle breeze, with an average wind speed of 5.4 m/s (12 mph), marking a noticeable dip compared to the stronger winds of earlier months. After the relatively brisk gusts of January through April, the winds begin to soften as summer approaches, creating a tranquil atmosphere perfect for beachgoers and outdoor activities. This continued decline in wind speed persists through June and July, suggesting a seasonal pattern where the ocean's warmth calms the air currents. As the months roll on, however, the winds gradually pick up again in the fall, hinting at the dynamic coastal weather that defines this charming seaside destination.

Average May Wind Speed in Rehoboth Beach

The chart displays monthly wind speed patterns in Rehoboth Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.27.06.36.05.4 m/s5.04.74.05.66.16.75.6
Data source: Rehoboth Beach May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Rehoboth Beach Compares to Other Months

The weather in Rehoboth Beach 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 Rehoboth Beach and find detailed weather information for every month.

In comparing the weather between May and January, we see a stark contrast. May boasts a mild average temperature of 16°C (61°F), with highs reaching up to 26°C (79°F), making it a pleasant month for outdoor activities. In contrast, January presents a much colder climate with an average temperature of only 4°C (39°F), where temperatures can drop as low as -11°C (13°F).

Additionally, May experiences more rainfall, with 135 mm (5.3 in) spread over 11 days, while January receives less precipitation at 83 mm (3.3 in) over 9 days. Despite the lower rainfall, January has a slightly higher humidity level at 84%, compared to May's 78%. To explore more about January weather specifics, check out Rehoboth Beach weather in January.

When comparing the weather in May and February, significant differences emerge in both temperature and precipitation. May experiences a more comfortable range, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 26°C (79°F), while February sees much colder temperatures, reaching lows of -10°C (14°F) and highs only up to 14°C (58°F). Precipitation levels are relatively similar, with May receiving 135 mm (5.3 in) over 11 days and February slightly lower at 125 mm (4.9 in) over 12 days. Furthermore, humidity levels are higher in February, at 83%, compared to May's 78%, contributing to the overall chilliness of that month. For more specific details on February weather, you can check Rehoboth Beach weather in February.

In comparing the weather between March and May, one can observe a significant warming trend. May boasts warmer temperatures, with an average of 16°C (61°F) compared to March's cooler average of 7°C (44°F). While both months experience a fair amount of precipitation, May sees slightly more at 135 mm (5.3 in) over 11 days, compared to March's 113 mm (4.5 in) over 10 days. Additionally, humidity levels are slightly lower in May at 78%, while March has a higher humidity level of 83%. For those interested in a more detailed look at March conditions, check out Rehoboth Beach weather in March.

In comparing the weather between April and May, it is evident that May experiences noticeably warmer temperatures with an average of 16°C (61°F), compared to April's average of 11°C (52°F). The minimum and maximum temperatures in May range from 5°C (41°F) to 26°C (79°F), whereas April has lower extremes, with a minimum of 2°C (36°F) and a maximum of 22°C (72°F). However, May also sees an increase in precipitation, with 135 mm (5.3 in) recorded over 11 days, compared to April's 91 mm (3.6 in) during the same number of days. Both months have similar humidity levels, with April slightly higher at 81% compared to May's 78%. For more detailed insights, you can check Rehoboth Beach weather in April.

May and June exhibit noticeable differences in weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 26°C (79°F), with an average temperature of 16°C (61°F). This month experiences considerable precipitation, totaling 135 mm (5.3 in) over 11 days, coupled with a humidity level of 78%. In contrast, June sees warmer conditions, with minimum temperatures at 13°C (56°F) and maximums reaching 28°C (83°F), leading to a pleasant average of 21°C (70°F). Rainfall decreases significantly to 78 mm (3.1 in) over just 8 days, while humidity remains relatively stable at 79%. For more detailed meteorological insights, you can visit Rehoboth Beach weather in June.

May weather is characterized by a wider range of temperatures, with minimums dipping as low as 5°C (41°F) and averages around 16°C (61°F). In contrast, July brings significantly warmer days, with minimum temperatures starting at 20°C (69°F) and average temperatures reaching 25°C (77°F). While May experiences higher precipitation levels (135 mm) over more days (11), July has slightly less rainfall at 112 mm but with fewer rainy days (9). Additionally, humidity levels are slightly lower in July at 74%, compared to 78% in May. For a detailed look at July weather in this area, check out Rehoboth Beach weather in July.

In comparing the weather between May and August, it's clear that August offers warmer temperatures, with averages around 25°C (77°F) compared to May's milder 16°C (61°F). While May experiences more variability with a maximum of 26°C (79°F), it also has a notable chill, with minimum temperatures dipping to 5°C (41°F). August additionally boasts a higher minimum temperature of 19°C (66°F) and typically sunnier skies, although it sees slightly less precipitation at 111 mm (4.4 in) over 12 days compared to May's 135 mm (5.3 in) over 11 days. Humidity levels are a bit lower in August, at 72%, compared to May's 78%, making the summer month feel more comfortable. For a closer look at Rehoboth Beach's conditions in August, check out Rehoboth Beach weather in August.

May and September present contrasting weather patterns, each with its unique charm. In May, temperatures can dip as low as 5°C (41°F) but typically average around 16°C (61°F), reaching a maximum of 26°C (79°F). The month is marked by relatively high humidity at 78% and frequent rainfall, with 135 mm (5.3 in) of precipitation over about 11 days. In contrast, September warms up with a minimum temperature of 15°C (59°F) and an average of 22°C (73°F), peaking at 29°C (84°F). The precipitation decreases to 102 mm (4.0 in) over 9 days, and humidity stays slightly lower at 75%. For more details, check out Rehoboth Beach weather in September.

May and October present a delightful transition in weather, each with its own unique characteristics. May typically sees temperatures ranging from a minimum of 5°C (41°F) to a maximum of 26°C (79°F), with an average of 16°C (61°F). This month experiences around 135 mm (5.3 in) of precipitation over 11 days, accompanied by a humidity level of 78%. In contrast, October offers slightly warmer conditions, with temperatures ranging from 8°C (47°F) to 28°C (82°F), and an average temperature of 18°C (65°F). Precipitation in October is a bit higher, totaling 146 mm (5.8 in) over the same number of rainy days, while humidity also creeps up slightly to 81%. For a detailed look at the weather in October, you can explore Rehoboth Beach weather in October.

May and November showcase contrasting weather patterns. In May, temperatures range from a pleasant 5°C (41°F) to a warm 26°C (79°F), with an average of 16°C (61°F). The month experiences 135 mm (5.3 in) of precipitation over 11 days, and humidity levels hover around 78%. In contrast, November sees cooler temperatures, with a range from -1°C (30°F) to 21°C (71°F) and an average of 11°C (52°F). Precipitation drops to 100 mm (3.9 in) over 9 days, but humidity rises to 85%. For a closer look at November's climate, check out Rehoboth Beach weather in November.

May and December showcase distinctly different weather patterns. In May, temperatures typically range from a cool 5°C (41°F) at night to a pleasant high of 26°C (79°F) during the day, with an average of 16°C (61°F). This month experiences moderate precipitation at 135 mm (5.3 in) over about 11 days, accompanied by a humidity level of 78%. In contrast, December presents much colder conditions, with minimum temperatures dipping to -6°C (22°F) and an average of just 7°C (45°F), peaking at 17°C (64°F). With 125 mm (4.9 in) of precipitation occurring over 10 days and a higher humidity of 84%, December is notably chillier and wetter. For more details on December weather, you can check Rehoboth Beach weather in December.

Compare Rehoboth Beach's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Rehoboth Beach

As May unfolds in Rehoboth Beach, it brings a refreshing transition from the cooler months, with temperatures warming and outdoor activities beckoning. The rise in humidity makes for a lush atmosphere, although occasional rainfall is common, with precipitation occurring on about a third of the days. This month stands out with its pleasant averages, making it ideal for beachgoers and nature enthusiasts eager to enjoy the vibrant scenery. Overall, May's weather is a delightful precursor to the summer season, providing a unique blend of warmth and refreshing breezes. For a more extensive look at what to expect throughout the year, visit Rehoboth Beach Climate.