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Harlingen, TX vs Port Isabel, TX weather comparison

Harlingen

TX

Harlingen endures about 65 more days above 90 °F each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Harlingen, TX and Port Isabel, TX
HarlingenMetricPort Isabel
231 daysSunny daysclear or partly cloudy skies239 days
24 inPrecipitationper year29 in
89 daysWet daysrain or snow per year99 days
0 inSnowfallper year0 in
154 daysHot daysabove 90 °F89 days
1 daysFreezing nightsat or below 32 °F0 days
72%Humidityaverage relative78%
76 °FAverage temperatureyear round74 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

HarlingenPort Isabel

Daily highs

708090100JanMarMayJulSepNovHarlingen, Jan: 72 °FHarlingen, Feb: 76 °FHarlingen, Mar: 81 °FHarlingen, Apr: 86 °FHarlingen, May: 91 °FHarlingen, Jun: 95 °FHarlingen, Jul: 97 °FHarlingen, Aug: 98 °FHarlingen, Sep: 93 °FHarlingen, Oct: 88 °FHarlingen, Nov: 80 °FHarlingen, Dec: 73 °FPort Isabel, Jan: 69 °FPort Isabel, Feb: 72 °FPort Isabel, Mar: 76 °FPort Isabel, Apr: 81 °FPort Isabel, May: 86 °FPort Isabel, Jun: 90 °FPort Isabel, Jul: 91 °FPort Isabel, Aug: 92 °FPort Isabel, Sep: 89 °FPort Isabel, Oct: 85 °FPort Isabel, Nov: 78 °FPort Isabel, Dec: 71 °F

Daily lows

506070JanMarMayJulSepNovHarlingen, Jan: 51 °FHarlingen, Feb: 55 °FHarlingen, Mar: 60 °FHarlingen, Apr: 66 °FHarlingen, May: 72 °FHarlingen, Jun: 76 °FHarlingen, Jul: 77 °FHarlingen, Aug: 76 °FHarlingen, Sep: 73 °FHarlingen, Oct: 67 °FHarlingen, Nov: 58 °FHarlingen, Dec: 52 °FPort Isabel, Jan: 52 °FPort Isabel, Feb: 56 °FPort Isabel, Mar: 62 °FPort Isabel, Apr: 67 °FPort Isabel, May: 73 °FPort Isabel, Jun: 77 °FPort Isabel, Jul: 78 °FPort Isabel, Aug: 78 °FPort Isabel, Sep: 75 °FPort Isabel, Oct: 70 °FPort Isabel, Nov: 62 °FPort Isabel, Dec: 55 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Harlingen high727681869195979893888073
Port Isabel high697276818690919289857871
Harlingen low515560667276777673675852
Port Isabel low525662677377787875706255

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

HarlingenPort Isabel
0.02.04.0JanMarMayJulSepNovHarlingen, Jan: 1.2 inHarlingen, Feb: 1.0 inHarlingen, Mar: 1.6 inHarlingen, Apr: 1.7 inHarlingen, May: 1.9 inHarlingen, Jun: 2.3 inHarlingen, Jul: 2.4 inHarlingen, Aug: 2.1 inHarlingen, Sep: 4.1 inHarlingen, Oct: 2.7 inHarlingen, Nov: 1.5 inHarlingen, Dec: 1.3 inPort Isabel, Jan: 2.2 inPort Isabel, Feb: 1.5 inPort Isabel, Mar: 1.7 inPort Isabel, Apr: 1.7 inPort Isabel, May: 1.4 inPort Isabel, Jun: 2.2 inPort Isabel, Jul: 2.4 inPort Isabel, Aug: 2.1 inPort Isabel, Sep: 5.5 inPort Isabel, Oct: 3.6 inPort Isabel, Nov: 2.6 inPort Isabel, Dec: 2.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Harlingen1.21.01.61.71.92.32.42.14.12.71.51.3
Port Isabel2.21.51.71.71.42.22.42.15.53.62.62.4

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

HarlingenPort Isabel
01020JanMarMayJulSepNovHarlingen, Jan: 15 daysHarlingen, Feb: 14 daysHarlingen, Mar: 17 daysHarlingen, Apr: 18 daysHarlingen, May: 21 daysHarlingen, Jun: 23 daysHarlingen, Jul: 23 daysHarlingen, Aug: 23 daysHarlingen, Sep: 19 daysHarlingen, Oct: 23 daysHarlingen, Nov: 19 daysHarlingen, Dec: 16 daysPort Isabel, Jan: 15 daysPort Isabel, Feb: 15 daysPort Isabel, Mar: 19 daysPort Isabel, Apr: 19 daysPort Isabel, May: 23 daysPort Isabel, Jun: 24 daysPort Isabel, Jul: 24 daysPort Isabel, Aug: 23 daysPort Isabel, Sep: 19 daysPort Isabel, Oct: 23 daysPort Isabel, Nov: 20 daysPort Isabel, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Harlingen151417182123232319231916
Port Isabel151519192324242319232016

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Harlingen vs another city

See the full Harlingen, TX climate profile

More Texas cities

Port Isabel vs another city

See the full Port Isabel, TX climate profile

More Texas cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).