October weather forecast
Galveston, TX

the colorful red night sky in the seaside city of Galveston in Texas
the colorful red night sky in the seaside city of Galveston in Texas

Weather in October

October, like September, in Galveston, Texas, is a moderately hot autumn month, with average temperature varying between 78.1°F (25.6°C) and 70.9°F (21.6°C).

Temperature

In October, the average high-temperature marginally drops, from 84.2°F (29°C) in September, to a still warm 78.1°F (25.6°C). The average low-temperature,, is 70.9°F (21.6°C).

Humidity

The least humid month in Galveston, Texas, is October, with an average relative humidity of 72%.

Rainfall

In Galveston, in October, it is raining for 12.5 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, in Galveston, there are 161.9 rainfall days, and 24.33" (618mm) of precipitation is accumulated.

Snowfall

In Galveston snow does not fall in March through December.

Ocean temperature

In Galveston, the average seawater temperature is 77.9°F (25.5°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Galveston, the average length of the day in October is 11.4h.

Sunshine

In October, the average sunshine is 6.9h.

UV index

In October, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 5 in October transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the least humid month in Galveston?

With an average relative humidity of 72%, October is the least humid month in Galveston.

What is the average humidity in October in Galveston?

In October, the average relative humidity is 72%.

How many days does it rain in October in Galveston?

In Galveston, during October, the rain falls for 12.5 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Galveston?

In Galveston, Texas, snow does not fall in March through December.

How warm is the water in October in Galveston?

In Galveston, Texas, in October, the average water temperature is 77.9°F (25.5°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in October in Galveston?

The average length of the day in October is 11.4h.

How many hours of sunshine does Galveston have in October?

In October, the average sunshine in Galveston, Texas, is 6.9h.

How high is the UV index in October in Galveston?

In Galveston, the average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in October
Galveston, TX

Average temperature in October - Galveston, TX
  • Average high temperature in October: 25.6°C

The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (15.4°C).

  • Average low temperature in October: 21.6°C

The month with the highest average low temperature is August (27.7°C).
The coldest month (with the lowest average low temperature) is January (10.9°C).

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Average pressure in October
Galveston, TX

Average pressure in October - Galveston, TX
  • Average pressure in October: 1016.2mbar

The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

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Average wind speed in October
Galveston, TX

Average wind speed in October - Galveston, TX
  • Average wind speed in October: 18.2km/h

The windiest month (with the highest average wind speed) is April (20.8km/h).
The calmest month (with the lowest average wind speed) is August (15.1km/h).

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Average humidity in October
Galveston, TX

Average humidity in October - Galveston, TX
  • Average humidity in October: 72%

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

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Average rainfall in October
Galveston, TX

Average rainfall in October - Galveston, TX
  • Average rainfall in October: 58mm

The wettest month (with the highest rainfall) is September (109mm).
The driest months (with the least rainfall) are February and March (19mm).

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Average rainfall days in October
Galveston, TX

Average rainfall days in October - Galveston, TX
  • Average rainfall days in October: 12.5 days

The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is January (10.1 days).

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Average snowfall days in October
Galveston, TX

Average snowfall days in October - Galveston, TX
  • Average snowfall days in October: 0 days

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

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Average sea temperature in October
Galveston, TX

Average sea temperature in October - Galveston, TX
  • Average sea temperature in October: 25.5°C

The best month for swimming (with the highest average sea temperature) is August (30.7°C).
The coldest month (with the lowest average sea temperature) is January (13.6°C).

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Average daylight in October /
Average sunshine in October
Galveston, TX

Average daylight in October / Average sunshine in October - Galveston, TX
  • Average daylight in October: 11.4h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in October: 6.9h

The month with the most sunshine is August (Average sunshine: 10.9h).
The month with the least sunshine is December (Average sunshine: 4.9h).

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Average sunshine days in October
Galveston, TX

Average sunshine days in October - Galveston, TX
  • Average sunshine days in October: 15.8 days

The month with the most sunshine days is January (18.2 days).
The month with the least sunshine days is August (8.3 days).

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Average UV index in October
Galveston, TX

Average UV index in October - Galveston, TX
  • Average UV index in October: 5

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January and December (UV index 4).

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Average cloud cover in October
Galveston, TX

Average cloud cover in October - Galveston, TX
  • Average cloud cover in October: 26

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June, July, August and October (Cloud cover 26).

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Average visibility in October
Galveston, TX

Average visibility in October - Galveston, TX
  • Average visibility in October: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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