Last updated: February 24, 2025
Experience the vibrant May weather in Galveston, Texas, where temperatures range from a pleasant 17°C (62°F) at night to a warm 29°C (85°F) during the day, with an average of 25°C (77°F). While this coastal city basks in sunshine, it also embraces a notable 79% humidity, contributing to its lush atmosphere. May brings 164 mm (6.5 in) of rain over 12 days, ensuring the landscape remains vibrant and green. Whether you're enjoying the beach or exploring local attractions, Galveston's May climate offers a delightful mix of warmth and refreshing showers, perfect for unwinding and soaking up the unique charm of this coastal haven.
In May, Galveston begins to embrace the warmth of spring, showcasing a noticeable increase in temperatures as the month unfolds. The minimum temperature rises to a comfortable 17°C (62°F), while the average settles at a pleasant 25°C (77°F), peaking with a maximum of 29°C (85°F). This trend marks a significant jump from April, indicating that summer is just around the corner. With longer days and inviting weather, May becomes an ideal time for outdoor activities, reflecting the city's transition from the cooler winter months into the balmy summer season. As temperatures steadily climb, Galveston's coastal charm shines brighter, making it a perfect getaway for those seeking warmth and sunshine.
May in Galveston brings a significant surge in precipitation, with an average of 164 mm (6.5 in) of rain over approximately 12 days. This marks a notable increase compared to the preceding months, signaling the onset of the wetter season that continues through the summer. As the year progresses, the rainfall peaks in the late summer months, particularly in August and September, drawing a clear trend of escalating precipitation during these periods. The abundance of rainfall in May is not only crucial for local ecosystems but also sets the stage for the humid, tropical conditions that define Galveston's climate as the year advances.
In May, Galveston experiences a humidity level of 79%, reflective of the region's coastal climate. This month continues the trend of elevated humidity observed in the spring months, with an increase from April's 81% and a slight dip from the 80% recorded in February. As summer approaches, humidity levels begin to gradually decrease, as seen in June's 75% and continuing into the hotter months. This pattern suggests that while May maintains a moderately high humidity, the trend leans towards a more comfortable atmosphere as the season progresses, making it a pleasant time to enjoy the coastal breezes before the summer heat sets in.
In May, Galveston experiences an extreme UV Index of 11, identical to April's levels and indicating a period of intense sun exposure. With a burn time of just 10 minutes, it’s crucial for residents and visitors alike to take proactive measures to protect their skin. As temperatures rise and outdoor activities increase, it's essential to be vigilant about sun safety. This trend of escalating UV Index values continues from February through June, highlighting a pattern of increasing intensity as summer approaches. To stay informed about the UV Index and protect yourself properly, check out the detailed information available at Galveston UV Index.
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As spring melts into summer in Galveston, May shines brightest with an impressive 318 hours of sunshine. This month not only welcomes warmth and outdoor activities but also marks a significant increase from the 281 hours in April. The trend continues into June, where the sun graces the city with 319 hours. Notably, the sunny days build momentum as summer approaches, often peaking in July at 327 hours. This upward trajectory, particularly from March's 266 hours, reflects a dramatic shift toward longer, sun-drenched days, inviting residents and visitors alike to revel in the vibrant coastal atmosphere. As the year progresses, while the sunshine begins to wane in the fall, May stands out as a beacon of brightness, perfectly illustrating the allure of Galveston’s climate.
In May, Galveston experiences a 35% chance of sunny weather, which reflects a slight dip compared to the preceding months of April and March, both hovering around the mid-40s. This percentage is indicative of a trend that sees the likelihood of sun decline as the spring transitions into early summer, with June showing a modest recovery at 40%. Interestingly, the chance of sunny days remains lower during the peak summer months like July and August, where the percentages drop to 28% and 29%, respectively. Overall, while May might not deliver the sunniest skies, it serves as a bridge between the milder, sunnier spring and the more overcast summer days to come.
In Galveston, the daylight duration experiences a gradual ascent as the year progresses into spring and summer. January starts with a modest 10 hours of daylight, but by February, this stretches to 11 hours, setting the stage for the longer days ahead. March and April showcase a steady increase, each boasting 12 hours of daylight, until May bursts onto the scene with an impressive 13 hours. This peak in daylight carries through the summer months, with June, July, and August each basking in that same 13-hour glow. As autumn approaches, daylight begins to wane once more, dropping to 12 hours in September and gradually diminishing back to 10 hours by December. This cyclical rhythm highlights the allure of longer days in Galveston, inviting both locals and visitors to embrace the vibrant outdoor life as the seasons change.
In May, Galveston experiences a gentle uptick in wind speed, averaging 6.5 m/s (15 mph), which sets the stage for a pleasant coastal atmosphere. This increase marks a subtle peak in the seasonal wind pattern, following a slight dip in earlier months, with April averaging 6.2 m/s. As summer approaches, the winds begin to soften, with June showing a decline to 5.2 m/s, suggesting that May is a transitional period where the breezy conditions are both invigorating and enjoyable. This trend highlights May as an ideal time for outdoor activities, where the invigorating winds enhance the island's charm before the more humid, calmed months of summer take over.
The weather in Galveston 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 Galveston and find detailed weather information for every month.
May and January present strikingly different weather patterns. In May, temperatures range from a minimum of 17°C (62°F) to a maximum of 29°C (85°F), with an average of 25°C (77°F), creating a warm and inviting atmosphere. However, this month also sees significant precipitation, totaling 164 mm (6.5 in) over about 12 days, resulting in high humidity levels of 79%. In contrast, January features much cooler temperatures, with a minimum of -2°C (29°F) and an average of 14°C (57°F), peaking at 24°C (75°F). While January is drier with only 90 mm (3.6 in) of precipitation over 9 days, humidity remains consistent at 79%. For more detailed insights into January weather, you can check this link: Galveston weather in January.
When comparing the weather in May and February, it's clear that May boasts significantly warmer temperatures, with a minimum of 17°C (62°F) and an average high of 29°C (85°F), compared to February's cooler range with a minimum of -6°C (22°F) and an average high of 21°C (71°F). Additionally, May experiences more precipitation, totaling 164 mm (6.5 in) over 12 days, while February sees only 88 mm (3.4 in) across 13 days. Humidity levels are similar in both months, peaking at around 79% in May and 80% in February, resulting in a generally muggy atmosphere during the warmer month. For more details about February weather specifically, you can visit Galveston weather in February.
When comparing the weather in March and May, it's clear that May is significantly warmer and wetter. In March, temperatures range from a cool minimum of 3°C (38°F) to a maximum of 24°C (76°F), with an average of 18°C (65°F). In contrast, May sees milder temperatures with a minimum of 17°C (62°F) and averaging a much warmer 25°C (77°F), peaking at 29°C (85°F). Additionally, March has relatively low precipitation at 58 mm (2.3 in) over 8 days, whereas May experiences heavier rainfall with 164 mm (6.5 in) across 12 days, making it the wetter month. For more details, check Galveston weather in March.
In comparing the weather patterns of May and April, we see a distinct warming trend as May boasts a minimum temperature of 17°C (62°F) and an average of 25°C (77°F), compared to April's cooler minimum of 10°C (51°F) and average of 21°C (70°F). With a maximum temperature reaching 29°C (85°F) in May, the month is significantly warmer than April, which peaks at 27°C (82°F). Additionally, May experiences more precipitation, with 164 mm (6.5 in) spread over 12 days, whereas April sees only 86 mm (3.4 in) over 10 days. Despite the increased rainfall in May, humidity levels are slightly lower, at 79%, compared to April's 81%. For more details on April weather, you can visit Galveston weather in April.
When comparing the weather between May and June, one can see some notable differences. May features a minimum temperature of 17°C (62°F) and an average of 25°C (77°F), with a maximum reaching up to 29°C (85°F). During this month, precipitation is relatively high at 164 mm (6.5 in) over 12 days, coupled with a humidity level of 79%. In contrast, June sees warmer temperatures with a minimum of 23°C (74°F), an average of 27°C (82°F), and a maximum of 32°C (89°F). The precipitation slightly increases to 170 mm (6.7 in) over 13 days, and humidity drops slightly to 75%. For more detailed information on June weather, you can visit Galveston weather in June.
In comparing the weather between May and July, there is a noticeable increase in temperature. May typically experiences a minimum of 17°C (62°F) and an average temperature of 25°C (77°F), while July sees higher temperatures, with a minimum of 24°C (76°F) and an average of 28°C (83°F). Although both months have significant precipitation, May has slightly higher levels at 164 mm (6.5 in) over an average of 12 rainy days compared to July's 151 mm (5.9 in) across 14 days. Humidity levels are also slightly more comfortable in July at 74%, compared to May's 79%. For a more detailed look at the weather specifics, you can visit Galveston weather in July.
May and August present distinct weather profiles, with May showcasing milder temperatures and higher humidity. In May, temperatures range from a minimum of 17°C (62°F) to a maximum of 29°C (85°F), averaging around 25°C (77°F). However, it also experiences considerable rainfall, with 164 mm (6.5 in) of precipitation over 12 rainy days and humidity levels reaching 79%.
In contrast, August brings warmer conditions, where temperatures start at a minimum of 24°C (75°F) and peak at 32°C (89°F), averaging 29°C (84°F). Despite being warmer, it sees more rainfall, totaling 210 mm (8.3 in) across 18 days, accompanied by slightly lower humidity at 73%. For more detailed insights, check out Galveston weather in August.
When comparing the weather in May and September, both months showcase warm temperatures, but with some notable differences. In May, temperatures range from a minimum of 17°C (62°F) to a maximum of 29°C (85°F), with an average of 25°C (77°F) and a humidity level of 79%. However, it also sees significant rainfall, with 164 mm (6.5 in) falling over about 12 days. In contrast, September boasts higher temperatures, with a minimum of 20°C (68°F) and a maximum of 32°C (89°F), while the average reaches 27°C (81°F). However, this month is also wetter, recording 243 mm (9.6 in) of precipitation over approximately 16 days, with slightly lower humidity at 75%. For more details, check out Galveston weather in September.
In comparing the weather of May and October, we see several notable differences and similarities. May typically experiences warmer average temperatures, ranging from a minimum of 17°C (62°F) to a maximum of 29°C (85°F), while October has cooler nights, with a minimum of 11°C (51°F) and a similar maximum of 29°C (85°F). Both months see a similar amount of precipitation, around 164 mm (6.5 in) in May and slightly less at 150 mm (5.9 in) in October, with rain occurring on about 12 days each month. Humidity levels are also fairly consistent, with May having a slightly higher average of 79% compared to October's 75%. For more detailed information on October weather, you can check out Galveston weather in October.
May and November present distinct contrasts in weather conditions. In May, temperatures range from a minimum of 17°C (62°F) to a warm average of 25°C (77°F), reaching a high of 29°C (85°F). This month is also characterized by significant rainfall, with about 164 mm (6.5 in) of precipitation over 12 days, contributing to the high humidity of 79%. In sharp contrast, November experiences cooler temperatures, with a minimum of 5°C (41°F) and a comfortable average of 19°C (66°F), peaking at 25°C (78°F). During this month, the region sees considerably less rain—only 77 mm (3.0 in) over 9 days—while maintaining the same humidity level of 79%. For more specifics on November weather conditions, visit Galveston weather in November.
May and December present quite contrasting weather conditions. In May, temperatures soar with a minimum of 17°C (62°F) and an average high of 29°C (85°F), creating warm and humid days with an average humidity of 79%. Rainfall is substantial, with 164 mm (6.5 in) spread over about 12 days, making it one of the wetter months. In contrast, December offers a cooler atmosphere, with a minimum temperature of 4°C (40°F) and a comfortable average of 16°C (61°F). The total precipitation is lower, at 104 mm (4.1 in) over 10 days, along with slightly higher humidity at 83%. For further details about December weather conditions, you can check Galveston weather in December.
As May rolls into Galveston, the weather begins to shift noticeably, characterized by warmer temperatures and a rise in humidity compared to the preceding months. Visitors can expect a delightful mix of sunny days and occasional rain, with precipitation occurring about 12 days throughout the month. While the warmth of 29°C (85°F) peaks during the day, evenings remain pleasantly cool, providing a perfect backdrop for outdoor activities. This transition foreshadows the hot summer ahead, making May a unique and vibrant time to experience all that Galveston has to offer. For a deeper understanding of what to expect in this coastal paradise, check out the full details at Galveston Climate.