Best year time to visit Port Isabel

General weather information about Port Isabel

Average annual temperature is 24.6 °C

Absolute maximum temperature: 37.8 °C

Absolute minimum temperature: 4.3 °C

Number of sunny days: 162 days

Number of rainy days: 203 days

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* Weather data for Port Isabel United States is based on climate observations for 2026 year

Port Isabel air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)29.631.332.432.131.837.236.337.836.033.230.527.8
Average daytime temperature (°C)23.923.526.227.129.233.634.134.233.629.524.122.8
Average temperature (°C)20.118.822.423.325.929.430.230.229.925.720.319.1
Average night temperature (°C)17.515.419.620.423.026.227.227.026.822.717.316.1
Absolute minimum temperature (°C)10.84.310.612.420.221.924.224.423.29.710.17.7

Port Isabel monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.013.013.013.012.011.011.010.0
Daylight mean duration (h)10.711.312.012.813.413.713.613.012.311.510.910.5
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)7.79.07.99.510.412.612.411.611.28.65.96.9
Precipitation (mm)191573106110145580504113431
Sunny days13141210519151811101421
Rainy days181419202611161319211610
Snow days000000000000

Port Isabel - weather forecast by months

Port Isabel weather in januaryPort Isabel weather in februaryPort Isabel weather in marchPort Isabel weather in aprilPort Isabel weather in mayPort Isabel weather in junePort Isabel weather in julyPort Isabel weather in augustPort Isabel weather in septemberPort Isabel weather in octoberPort Isabel weather in novemberPort Isabel weather in december

Best time to visit Port Isabel:

The best time to visit Port Isabel during the most sunny months:

  • June — 12.6(h)
  • July — 12.4(h)

The largest precipitation sum in Port Isabel is at

  • April — 106(mm)
  • May — 110(mm)
  • August — 80(mm)
  • November — 134(mm)

    • Weather forecast in the closest to Port Isabel admin centers

    Weather forecast in the closest towns to Port Isabel

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    Frequently asked questions

    When is the best time to visit Port Isabel?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Port Isabel.
    What is the weather like in Port Isabel?
    See average temperature, rainfall and daylight hours for Port Isabel by month in the table above.
    How many sunny days does Port Isabel have?
    The monthly weather statistics above show sunshine and rainfall patterns for Port Isabel throughout the year.