Galveston

Find out what weather awaits you in Galveston! This section features current weather reports and detailed forecasts to help you plan your day.

The climate in Galveston is characterized as subtropical, meaning mild winters and long, hot summers. Thanks to its comfortable average annual temperatures, Galveston is an attractive destination for travelers seeking warmth and sunshine, especially during the shoulder seasons and winter.

Seasons are clearly defined in Galveston. Summer, which lasts from June to August, is typically hot and humid, with temperatures often exceeding 30°C (the average high in August is 31.5°C). Winter, from December to February, is mild here, with average temperatures around 13-15°C; frost is a rare occurrence. Spring and autumn offer pleasant, warm weather, ideal for strolls and exploring the city.

Precipitation in Galveston occurs throughout the year, but the total amount remains quite moderate, ranging from 2 to 6 mm per month. Notably, the highest number of days with precipitation (from 14 to 19 days per month) falls between May and September. This indicates that frequent but generally very light and brief precipitation, such as drizzle or light rain rather than heavy downpours, can be expected during the summer months. Overall, the weather in Galveston allows for planning a trip at almost any time of year, though it is worth considering the peak heat and humidity in summer.

The temperature regime in Galveston is characterized by noticeable seasonal changes, yet without extreme cold. The annual average temperature range fluctuates from 13.3°C in January to 28.9°C in August. The hottest months are traditionally July and August, when the average high air temperature reaches 31.1°C - 31.5°C. The coolest month is January, with an average low of about 9.6°C and an average high of up to 17.0°C.

Summer months in Galveston, from June to August, feature consistently hot weather. Average daytime temperatures stay firmly above 30°C (for example, the average high in August is 31.5°C), while nights remain very warm, with lows rarely dropping below 25-26°C (for instance, the average low in August is 26.3°C). The difference between day and night temperatures in summer is not very large, around 5-6°C, which highlights the constantly warm nature of this season, often accompanied by high humidity.

Winter in Galveston, spanning from December to February, is mild and free from severe frosts. Average temperatures during this period fluctuate from 13.3°C in January to 15.6°C in December. Daytime highs in winter are typically in the 17.0°C - 18.9°C range, while nighttime lows drop to 9.6°C - 12.2°C. Daily temperature fluctuations in winter are slightly more pronounced than in summer, reaching 6-7.5°C, but overall the weather remains comfortable for walking, especially during the day when the air warms up pleasantly.

In Galveston, precipitation is a year-round occurrence, but its character is very specific: the key feature is not the total amount of rainfall, but the frequency of rainy days. Even during periods with the highest number of rainy days, the total monthly amount remains small, indicating that the rain is predominantly light and brief. Snow is extremely rare in Galveston, so all precipitation here falls as rain.

This characteristic is most evident between May and September. For example, August leads in the number of rainy days—a full 19—yet the total precipitation is only 5 mm. This means the average rainfall intensity in August is extremely low (about 0.26 mm per rainy day), painting a picture of frequent but very light, possibly drizzling, precipitation. A similar situation is observed in July (5 mm over 17 days) and May (5 mm over 15 days). September stands out slightly: with 16 rainy days, it receives the highest monthly rainfall of 6 mm, which gives a slightly higher average intensity (about 0.375 mm per rainy day), but still indicates light rain.

An interesting contrast is seen at the beginning of the year. January, February, and March all have the same number of rainy days—9 each. However, March is the "driest" month in terms of total rainfall volume (only 2 mm), which also corresponds to the lowest intensity (about 0.22 mm per rainy day). At the same time, January, with the same 9 rainy days, receives 4 mm of precipitation. This means the average intensity of January rains (about 0.44 mm per rainy day) is the highest of the year, suggesting that rare winter rains may be slightly more noticeable than summer drizzle. Transitional months like April (3 mm over 11 days) and the autumn months of October and November (3 mm over 10 days each) show moderate frequency and intensity of light precipitation.

When packing for a trip to Galveston, it's important to consider its coastal location and subtropical climate. The foundation of your luggage should be comfortable shoes—essential for strolls through the historic center and along the seawall. The sun is active here year-round, so don't forget sunscreen, sunglasses, and a hat. Given that Galveston often experiences precipitation, especially from May to September (up to 19 rainy days a month, albeit with a low total rainfall), a light waterproof jacket or umbrella will be reliable companions. Layering your clothing is key to comfort, allowing you to easily adapt to temperature changes throughout the day, the refreshing sea breeze, and chilly air-conditioned interiors.

In summer, from June to August, Galveston is hot and humid: average high temperatures reach 30-31.5°C. Your best bet is light, breathable clothing made of natural fabrics, such as shorts, T-shirts, and sundresses. And of course, don't forget your swimsuit for relaxing on the coast! In winter, from December to February, the weather is mild, with average temperatures around 13-15°C, but it can be cool in the mornings and evenings (minimum temperatures can drop to 9-12°C). At this time, jeans or trousers, long-sleeved shirts, a light sweater or fleece, and a mid-season jacket will come in handy.

Spring (March-May) and autumn (September-November) in Galveston offer pleasant shoulder seasons with comfortable weather. In spring, temperatures gradually rise, reaching highs of around 28°C in May. In autumn, especially in September, it is still quite warm (up to 30°C), but this is also the month with the highest rainfall (6 mm) and a significant number of rainy days (16 days), though the rain is usually light. T-shirts, light sweaters, and the same windbreaker or light jacket are ideal for these periods. Be prepared for changeable weather and don't forget about possible rain, especially in May and September.