Harlingen, Texas Climate by Month
Harlingen, Texas, United States
Very hot summers and mild winters, with rain spread through the year.
Harlingen has very hot summers and mild winters, with rain spread through the year. Afternoon highs range from 70°F (21°C) in January to 96°F (36°C) in August, and January nights average 50°F (10°C). About 28 in (719 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 96°F(36°C)
- Average high, August
- Coldest nights
- 50°F(10°C)
- Average low, January
- Rain per year
- 28 in(719 mm)
- No clear rainy season
- Humidity
- 73%
- Sunniest: July
Best and worst months in Harlingen
Best for weatherFebruary is the best time for weather in Harlingen: highs near 75°F (24°C) and about 1.2 in (30 mm) of rain a month.
Least pleasantSeptember is the least pleasant month: it's the hottest, with highs of 92°F (33°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in February.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Harlingen weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 70°F(21°C) | 50°F(10°C) | 1.3 in(34 mm) | 75% | 3.0 |
| FebFebruaryBest | 75°F(24°C) | 54°F(12°C) | 1.2 in(30 mm) | 73% | 3.6 |
| MarMarch | 80°F(27°C) | 59°F(15°C) | 1.1 in(27 mm) | 73% | 4.3 |
| AprApril | 85°F(30°C) | 65°F(18°C) | 1.3 in(32 mm) | 71% | 5.2 |
| MayMay | 89°F(32°C) | 71°F(22°C) | 2.6 in(67 mm) | 74% | 5.9 |
| JunJune | 93°F(34°C) | 75°F(24°C) | 3.0 in(76 mm) | 73% | 6.1 |
| JulJuly | 95°F(35°C) | 76°F(24°C) | 2.8 in(70 mm) | 70% | 6.3 |
| AugAugust | 96°F(36°C) | 76°F(24°C) | 2.4 in(60 mm) | 69% | 6.0 |
| SepSeptember | 92°F(33°C) | 72°F(22°C) | 6.6 in(167 mm) | 72% | 5.0 |
| OctOctober | 87°F(30°C) | 66°F(19°C) | 2.9 in(74 mm) | 72% | 4.3 |
| NovNovember | 78°F(26°C) | 58°F(14°C) | 1.8 in(45 mm) | 73% | 3.2 |
| DecDecember | 72°F(22°C) | 51°F(11°C) | 1.5 in(37 mm) | 75% | 2.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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