Usually the weather in Harlingen through January is 13 with the high being 22 and lows around 6 degrees. Find more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 13 |
| High Temperature | 22 |
| Low Temperature | 6 |
| Sunshine Per Day | 7 |
Useful Links: Harlingen Weather: Average Weather & Yearly Climate