The best times to visit Harlingen for ideal weather are

November 5th to April 1st

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Harlingen Travel Info

Weather in Harlingen


Average temperatures in Harlingen vary greatly. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a very low chance of precipitation throughout the year. The area is somewhat temperate — in the 55th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Harlingen, the hottest months are August, July, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid August where highs are regularly around 98.5°F (36.9°C) with temperatures rarely dropping below 76.2°F (24.6°C) at night.

Harlingen Temperatures (Fahrenheit)


Harlingen Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Harlingen Perceived Temperature (F)


Harlingen Perceived Temperature (C)



Average Harlingen Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 71.7 59 49.4
Feb 75.8 63.2 53.6
Mar 80.9 68.2 58.1
Apr 87.3 75.1 66.1
May 91 79.7 70.9
Jun 95.5 83.7 74.5
Jul 95.3 84 75.2
Aug 97.5 84.8 75.2
Sep 92.2 80.7 72.5
Oct 88.8 75.7 65.3
Nov 80.4 67.5 57.1
Dec 75.1 62.5 53

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 22.1 15 9.7
Feb 24.3 17.3 12
Mar 27.2 20.1 14.5
Apr 30.7 23.9 18.9
May 32.8 26.5 21.6
Jun 35.3 28.7 23.6
Jul 35.2 28.9 24
Aug 36.4 29.3 24
Sep 33.4 27.1 22.5
Oct 31.6 24.3 18.5
Nov 26.9 19.7 13.9
Dec 23.9 16.9 11.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Harlingen are February, April, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early May. For example, on the week of April 30th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid September with an average of 2 days of significant precipitation the week of September 10th.

When can you find snow in Harlingen? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Harlingen.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Harlingen (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 8% 0 1.4
Feb 6% 0 0.9
Mar 6% 0 1.1
Apr 6% 0 1.7
May 9% 0 2.7
Jun 8% 0 1.4
Jul 12% 0 3.2
Aug 10% 0 2.2
Sep 26% 0 5.8
Oct 8% 0 1.7
Nov 8% 0 2.2
Dec 6% 0 1.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 8 0 3.6
Feb 6 0 2.3
Mar 6 0 2.8
Apr 6 0 4.3
May 9 0 6.9
Jun 8 0 3.6
Jul 12 0 8.1
Aug 10 0 5.6
Sep 26 0 14.7
Oct 8 0 4.3
Nov 8 0 5.6
Dec 6 0 3.6


Humidity and Wind

Harlingen has some very humid months, and above average humidity throughout the year. The least humid month is April (63.6% relative humidity), and the most humid month is September (71.2%).

Wind in Harlingen is usually moderate. The windiest month is April, followed by March and May. April’s average wind speed of around 11.4 knots (13.1 MPH or 21.1 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late April where average top sustained speeds reach 20.7 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Harlingen.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 9.5 Gentle breeze 17.2 Strong breeze
Feb 10.7 Gentle breeze 18.8 Strong breeze
Mar 11.1 Significant breeze 19.2 Strong breeze
Apr 11.4 Significant breeze 19.7 Strong breeze
May 11 Significant breeze 18.7 Strong breeze
Jun 9.8 Gentle breeze 17.9 Strong breeze
Jul 9.6 Gentle breeze 17.8 Strong breeze
Aug 8.2 Gentle breeze 17 Strong breeze
Sep 6.9 Light breeze 15.5 Strong breeze
Oct 7.9 Gentle breeze 15.8 Significant breeze
Nov 8.6 Gentle breeze 16.3 Strong breeze
Dec 9.6 Gentle breeze 17.3 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 66.8%
Feb 67%
Mar 63.8%
Apr 63.6%
May 65.2%
Jun 65.1%
Jul 66.7%
Aug 63.6%
Sep 71.2%
Oct 64.7%
Nov 65.6%
Dec 67.1%


Is it Safe to Travel to Harlingen?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Harlingen, TX, US is July, followed by June and December. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Harlingen in October. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 53.6 in October means 53.6% of the tourists vs. July.



Overall Harlingen Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 93.5°F (34.2°C) and 77.9°F (25.5°C) with warmer temperatures in the later months. Rain is rare with 2 to 3 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 2 to 4 days of precipitation per month. June – August is the busiest season for tourism in Harlingen, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 93.9°F (34.4°C) and 77.1°F (25.1°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 2 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is somewhat cool this time of year in Harlingen to be enjoyable for warm weather travelers. The average high during this season is between 79.3°F (26.3°C) and 69°F (20.6°C). On average, it rains or snows a smalll amount: consistently 2 times per month. These times of year are the second busiest with tourists.


Best Times to Travelthe United States › Harlingen, TX, US