June weather forecast
Galveston, TX

The heat continues to intensify as Galveston, Texas moves deeper into summer. Noticeably, the sea gets warmer, reaching a welcoming 83.9°F (28.8°C), making the water almost irresistible for swimming and diving. June is indeed a sunny and lively month, despite the humidity and rain which also begin to increase. As the days get hotter and sunnier, people are advised to mitigate against excessive UV radiation, which hits a yearly peak of 7. However, the winds slow down, inducing a calming effect overall.

Temperature

The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from 79.3°F (26.3°C) in May to a still warm 84.7°F (29.3°C). Galveston's average temperature during the nights of June is recorded at a still moderately hot 79.5°F (26.4°C).

Heat index

The heat index in June is computed to be a very hot 95°F (35°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In June, the average relative humidity is 77%.

Rainfall

In Galveston, during June, the rain falls for 14.2 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Galveston, Texas, during the entire year, the rain falls for 161.9 days and collects up to 24.33" (618mm) of precipitation.

Snowfall

March through December are months without snowfall in Galveston.

Ocean temperature

In June, the average ocean temperature in Galveston, Texas, is 83.8°F (28.8°C).
Note: Swimming, diving, and other water-related activities in temperatures between 77°F (25°C) and 84.2°F (29°C) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

The month with the longest days in Galveston is June, with an average of 14h and 0min of daylight.
On the first day of June, sunrise is at 6:19 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:22 pm CDT.

Sunshine

In June, the average sunshine in Galveston is 10.8h.

UV index

The months with the highest UV index in Galveston are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In June, the maximum UV index of 7 transforms into these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be wary! Reflections from sand and water make UV radiation more intense.