Houston Weather in April
United States · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
April in Houston sees average temperatures ranging from a low of 16.6°C (61.9°F) to a high of 25.6°C (78.1°F), with a mean of 20.9°C (69.6°F). Compared to the annual average of 21.3°C (70.3°F), this month is 0.4°C cooler than the yearly norm. Precipitation averages 174.5mm, making it approximately 13.0mm wetter than the monthly average of 162.0mm. The city receives an average of 8.5 hours of sunshine per day during April, with relative humidity averaging 75.8%. Wind speeds reach an average maximum of 24.0 km/h. For travelers, this month offers a temperature experience in Houston, with wetter-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in Houston, accept that humidity is the third dimension of every weather reading. I ran Buffalo Bayou Park in May at 7am: 24°C but 90% humidity, like jogging through warm soup. June-September is genuinely oppressive — 34°C with 75% humidity, heat index pushing 40°C. Best outdoor windows: March-April and October-November, 22-26°C with manageable humidity. Hurricane season (August-September) can disrupt everything. Winter is mild but unpredictable — I once did a January bike ride in 25°C, then a February one in 5°C. Always check radar; Gulf storms intensify fast.
April vs Adjacent Months
| Metric | March | April | May |
|---|---|---|---|
| Mean Temp | 18.2°C (64.8°F) | 20.9°C (69.6°F) | 24.6°C (76.3°F) |
| Rainfall | 120.8mm | 174.5mm | 230.6mm |
| Sunshine | 7.7 hrs | 8.5 hrs | 9.4 hrs |
| Humidity | 76.8% | 75.8% | 80.2% |
| Wind | 24.2 km/h | 24.0 km/h | 22.3 km/h |
| Rainy Days | 19.6 | 19.8 | 21.2 |
Seasonal Context
April falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Houston in April, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Houston in April?
The average temperature in Houston during April ranges from 16.6°C (61.9°F) to 25.6°C (78.1°F), with a mean of 20.9°C (69.6°F).
How much does it rain in Houston in April?
Houston receives an average of 174.5mm of precipitation in April, spread across approximately 19.8 rainy days.
What should I pack for Houston in April?
Based on April weather data, pack layers including light jackets and t-shirts, plus an umbrella. Rain gear is essential — this month averages 174.5mm of precipitation.
Is April a good time to visit Houston?
April is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Houston
Cities with Similar April Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 29.76°, -95.37°. Timezone: America/Chicago. Last updated: 2026-07-30.