Normal weather for Harlingen in September
It's hot in September in Harlingen with an average temperature of 34°C. Temperatures this month range from a low of 32°C to a high of 36°C. At night, you can expect temperatures between 22°C and 25°C.
In September, there is an average of 225 mm of precipitation, spread over 18 days. The wind speed is around 5 Bft, mostly coming from the East.
Harlingen in September |
New York | ||
|---|---|---|---|
 Average Temperature |
34°C | 27°C | |
 High Temp |
36°C | 31°C | |
| Low Temp |
32°C | 21°C | |
 Total Precipitation |
225 mm | 57 mm | |
| Rainy Days |
18 days | 9 days | |
Start of September
The month of September starts in Harlingen with hot temps, averaging around 35°C during the day and nights around 24°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps stay steady at around 35°C, with nights around 24°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in Harlingen is around 34°C, while nighttime temps are about 24°C. There’s a significant chance of many days with precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Find affordable trips to Harlingen 
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Harlingen?
Looking for sun? September isn’t a good month to be in Harlingen. The temperature is nice, but there’s too much chance of rain.
The hurricane season in Harlingen runs from June to November.
Temperature records for Harlingen in September
Check out the climate of Harlingen for all months and discover the best travel time
August
Plan your next vacation
Don’t miss the best vacation deals for Harlingen and see what our partners have for you.
Daily Temperature in September in Harlingen
This chart shows the average daily high and low temperatures in September for Harlingen, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Harlingen
The chart below shows the average daily precipitation in September for Harlingen, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 18 days of precipitation in Harlingen.
Daily UV Index in September in Harlingen
This chart shows the average daily UV index in September in Harlingen, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Harlingen Over the Years
This chart shows the average temperature in September in Harlingen, measured in degrees Celsius, over the past few years.
Total Precipitation in September in Harlingen Over the Years
This chart shows the average precipitation in September in Harlingen, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in September for Harlingen
Click on any day in September to get detailed info about the usual weather on that day in Harlingen. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Harlingen
Have you been to Harlingen in September?
Share your weather experience in September in Harlingen.
Average Weather in Harlingen by Month
Click on a month below to see detailed weather info for Harlingen. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Harlingen for all months at once
