Weather temperatures in Harlingen during March is 16. High temperatures are around 24 with low average temperatures being 13. See our table below for a full breakdown:
| Month | Degrees Celsius |
|---|---|
| Temperature | 16 |
| High Temperature | 24 |
| Low Temperature | 13 |
| Sunshine Per Day | 10 |
Useful Links: Harlingen Weather: Average Weather & Yearly Climate