Port Arthur (TX) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Port Arthur

Port Arthur average temperature chart (Celsius) Port Arthur average temperature chart (Fahrenheit)
Average monthly temperatures in Port Arthur (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 15.5 17.5 21.5 25.4 28.6 31.6 32.9 32.9 30.4 26.5 21.5 17.5
°F 59.8 63.5 70.7 77.6 83.4 88.8 91.3 91.2 86.7 79.7 70.7 63.6

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Port Arthur monthly rainfall chart (mm) Port Arthur monthly rainfall chart (inches)
Average monthly rainfall in Port Arthur (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 119 86 81 87 143 139 136 136 158 106 119 122
inches 4.7 3.4 3.2 3.4 5.6 5.5 5.3 5.3 6.2 4.2 4.7 4.8
Rainy days 10 8 8 6 7 8 11 12 10 6 8 9

Average annual rainfall in Port Arthur: 1367.1mm (538.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Port Arthur

Port Arthur average daily sunshine chart
Average daily sunshine Port Arthur
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.8 6.4 6.6 7.4 9 10.1 9.7 9 8.3 8.3 6.6 5.3

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Port Arthur average minimum / maximum temperatures (Celsius) Port Arthur average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Port Arthur (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 5.5 7.1 10.9 15.4 19.2 22.4 23.5 23.1 21 15.3 10.9 7
Max °C 15.7 17.8 21.8 25.6 28.8 31.8 33.2 33.1 30.6 26.8 21.8 17.8
Min °F 41.9 44.7 51.5 59.7 66.6 72.3 74.2 73.6 69.8 59.5 51.5 44.6
Max °F 51.1 54.3 61.3 68.9 75.2 80.8 82.9 82.6 78.4 69.8 61.3 54.3

Sea temperature

The graph below shows the average sea temperature.

Port Arthur average sea temperature chart (Celsius) Port Arthur average sea temperature chart (Fahrenheit)
Average sea temperature around Port Arthur in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 17.1 16.6 18.1 21 24.7 28.3 29.7 30 28.8 25.7 22.1 19.2
°F 62.7 61.9 64.6 69.7 76.5 82.9 85.4 85.9 83.8 78.2 71.8 66.5

Wind speed

The graph below shows the average wind speed.

Port Arthur average winspeed by month (km/h) Port Arthur average winspeed by month (mph)
Average wind speed in Port Arthur (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 18 18 18 16 14 12 12 13 14 16 17
mph 11 11 11 11 10 9 7 7 8 9 10 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Port Arthur relative humidity averages
Average relative humidity in Port Arthur
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
79% 77% 76% 77% 78% 79% 80% 80% 79% 77% 78% 80%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Port Arthur weather stats

Port Arthur weather statistics
Hottest month: July 32.9°C 91.2°F
Driest month: March 81mm 3.2ins
Sunniest month: June 10.1hrs
Coldest month: January 15.5°C 59.9°F
Wettest month: September 158mm 6.2ins
Warmest sea: August 30°C 86°F
Map showing location of Port Arthur (29.89883, -93.92878) Port Arthur map pin © Google

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