June weather forecast
San Leon, TX

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Weather in June

The first month of the summer, June, is a hot month in San Leon, Texas, with an average temperature varying between 78.8°F (26°C) and 86.7°F (30.4°C).

Temperature

In San Leon, the average high-temperature in June slightly increases from a moderately hot 81.3°F (27.4°C) in May to a hot 86.7°F (30.4°C). The month of June shows a minor drop from daytime temperatures, generally recording a low average of 78.8°F (26°C).

Heat index

The average heat index in June is calculated to be a torrid 100.4°F (38°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In June, the average relative humidity is 76%.

Rainfall

In San Leon, during June, the rain falls for 17.8 days and regularly aggregates up to 4.41" (112mm) of precipitation. In San Leon, during the entire year, the rain falls for 188.2 days and collects up to 44.13" (1121mm) of precipitation.

Snowfall

February through December are months without snowfall in San Leon.

Ocean temperature

In San Leon, the average seawater temperature in June is 83.8°F (28.8°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The month with the longest days is June, with an average of 14h and 0min of daylight.
On the first day of June, sunrise is at 6:20 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:23 pm CDT.

Sunshine

In San Leon, the average sunshine in June is 10.6h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in June translates into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Beware! Reflections from sand and water can intensify the Sun's UV radiation.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is June?

In San Leon, in June, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 78.8°F (26°C). In June, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 100.4°F (38°C).

What is the average humidity in June?

In San Leon, the average relative humidity in June is 76%.

How many days does it rain in June?

In San Leon, in June, during 17.8 rainfall days, 4.41" (112mm) of precipitation is typically accumulated.

When it does not snow?

February through December are months without snowfall.

What is the water temperature in June?

In San Leon, the average seawater temperature in June is 83.8°F (28.8°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

When are the longest days?

With an average of 14h and 0min of daylight, June has the longest days of the year.

What is the average length of the day in June?

The average day length in June in San Leon is 14h and 1min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 6:20 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:23 pm CDT.

How many hours of sunshine does San Leon have in June?

The average sunshine duration in June is 10.6h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

How high is the UV index in June?

In June, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
San Leon, TX

Average temperature in June - San Leon, TX
  • Average high temperature in June: 86.7°F

The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in June: 78.8°F

The months with the highest average low temperature are July and August (80.2°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).

Average pressure in June
San Leon, TX

Average pressure in June - San Leon, TX
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in June
San Leon, TX

Average wind speed in June - San Leon, TX
  • Average wind speed in June: 9.4mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are August and September (8.3mph).

Average humidity in June
San Leon, TX

Average humidity in June - San Leon, TX
  • Average humidity in June: 76%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in June
San Leon, TX

Average rainfall in June - San Leon, TX
  • Average rainfall in June: 4.41"

The wettest month (with the highest rainfall) is September (6.77").
The driest month (with the least rainfall) is March (1.81").

Average rainfall days in June
San Leon, TX

Average rainfall days in June - San Leon, TX
  • Average rainfall days in June: 17.8 days

The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is November (11.6 days).

Average snowfall in June
San Leon, TX

Average snowfall in June - San Leon, TX
  • Average snowfall in June: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in June
San Leon, TX

Average snowfall days in June - San Leon, TX
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in June
San Leon, TX

Average sea temperature in June - San Leon, TX
  • Average sea temperature in June: 83.9°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.5°F).

Average daylight in June /
Average sunshine in June
San Leon, TX

Average daylight in June / Average sunshine in June - San Leon, TX
  • Average daylight in June: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in June: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in June
San Leon, TX

Average sunshine days in June - San Leon, TX
  • Average sunshine days in June: 8 days

The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is August (6.3 days).

Average UV index in June
San Leon, TX

Average UV index in June - San Leon, TX
  • Average UV index in June: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in June
San Leon, TX

Average cloud cover in June - San Leon, TX
  • Average cloud cover in June: 27

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in June
San Leon, TX

Average visibility in June - San Leon, TX
  • Average visibility in June: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

San Leon, Texas, USA

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