July weather forecast
Port Sulphur, LA

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Weather in July

July, like June, is another hot summer month in Port Sulphur, Louisiana, with temperature in the range of an average low of 79.9°F (26.6°C) and an average high of 87.4°F (30.8°C).

Temperature

Port Sulphur's average high-temperature in July is a still hot 87.4°F (30.8°C), marking an insignificant difference from the 86.5°F (30.3°C) of June. Port Sulphur registers an average low-temperature of 79.9°F (26.6°C) throughout July, a modest decrease from its daytime highs.

Heat index

In July, the heat index is calculated to be a very hot 100.4°F (38°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Port Sulphur, the average relative humidity in July is 74%.

Rainfall

In Port Sulphur, in July, during 19.3 rainfall days, 3.35" (85mm) of precipitation is typically accumulated. In Port Sulphur, Louisiana, during the entire year, the rain falls for 137.2 days and collects up to 19.92" (506mm) of precipitation.

Snowfall

In Port Sulphur, snow does not fall in February through December.

Daylight

In July, the average length of the day is 13h and 49min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:02 pm. On the last day of July, sunrise is at 6:18 am and sunset at 7:51 pm CDT.

Sunshine

In Port Sulphur, the average sunshine in July is 10.6h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in July leads to these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in July?

The average high-temperature and low-temperature during July are 87.4°F (30.8°C) and 79.9°F (26.6°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in July is calculated to be 100.4°F (38°C).

What is the average humidity in July?

In July, the average relative humidity is 74%.

How much does it rain in July?

In Port Sulphur, in July, during 19.3 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

When it does not snow?

February through December are months without snowfall.

What is the average length of the day in July?

In July, the average day length is 13h and 49min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 6:02 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:51 pm CDT.

How long on average sun shines in July?

The average sunshine duration in July is 10.6h.

What are the months with the highest UV index?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Port Sulphur, LA

Average temperature in July - Port Sulphur, LA
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (61.2°F).

  • Average low temperature in July: 79.9°F

The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (51.6°F).

Average pressure in July
Port Sulphur, LA

Average pressure in July - Port Sulphur, LA
  • Average pressure in July: 30.01"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

Average wind speed in July
Port Sulphur, LA

Average wind speed in July - Port Sulphur, LA
  • Average wind speed in July: 7.3mph

The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in July
Port Sulphur, LA

Average humidity in July - Port Sulphur, LA
  • Average humidity in July: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in July
Port Sulphur, LA

Average rainfall in July - Port Sulphur, LA
  • Average rainfall in July: 3.35"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is April (0.79").

Average rainfall days in July
Port Sulphur, LA

Average rainfall days in July - Port Sulphur, LA
  • Average rainfall days in July: 19.3 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is November (7 days).

Average snowfall days in July
Port Sulphur, LA

Average snowfall days in July - Port Sulphur, LA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in July /
Average sunshine in July
Port Sulphur, LA

Average daylight in July / Average sunshine in July - Port Sulphur, LA
  • Average daylight in July: 13h and 5min

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 July: 10h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in July
Port Sulphur, LA

Average sunshine days in July - Port Sulphur, LA
  • Average sunshine days in July: 9.2 days

The months with the most sunshine days are April and November (20.9 days).
The month with the least sunshine days is August (7.3 days).

Average UV index in July
Port Sulphur, LA

Average UV index in July - Port Sulphur, LA
  • Average UV index in July: 7

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

Average cloud cover in July
Port Sulphur, LA

Average cloud cover in July - Port Sulphur, LA
  • Average cloud cover in July: 28

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is May (Cloud cover 23).

Average visibility in July
Port Sulphur, LA

Average visibility in July - Port Sulphur, LA
  • Average visibility in July: 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).

Port Sulphur, Louisiana, USA

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