Harris County Climate and Average Weather
Climate of Harris County: average temperatures, rainfall and seasons month by month.
Climate in Harris County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 60° | 43° | 6,9 in | ★★☆☆☆ |
| February | 70° | 52° | 3,0 in | ★★★★☆ |
| March | 77° | 59° | 3,7 in | ★★★★☆ |
| April | 80° | 65° | 6,7 in | ★★★☆☆ |
| May | 85° | 70° | 12,6 in | ★★★☆☆ |
| June | 89° | 76° | 9,1 in | ★★★☆☆ |
| July | 91° | 76° | 10,0 in | ★★☆☆☆ |
| August | 95° | 78° | 2,2 in | ★★★★☆ |
| September | 90° | 74° | 4,1 in | ★★★★☆ |
| October | 84° | 66° | 3,3 in | ★★★★☆ |
| November | 74° | 57° | 4,2 in | ★★★★☆ |
| December | 67° | 51° | 5,4 in | ★★★☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Recent extremes in Harris County
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Harris County compares with nearby places
Annual averages, and the difference against Harris County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Houston | 0 mi | 71°F | about the same | 71 in |
| George Bush Intercontinental Airport | 16 mi | 71°F | about the same | 67 in |
| Austin-Bergstrom International Airport | 141 mi | 71°F | about the same | 43 in |
| Austin | 146 mi | 71°F | about the same | 44 in |
| Area Code 512 | 146 mi | 71°F | about the same | 44 in |
Best time to visit Harris County
Go in February, March, August, September, October and November. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, May and July - expect the least comfortable mix of heat, cold or rain.
What this means for Harris County
Today is slightly warmer than average for August. The forecast high of 99°F is 4.3°F above the 95°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 66°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- If your dates are flexible, avoid January, May and July - historically the least comfortable months here.
Summary
Harris County is a county in Texas. Harris County is a county in the United States. It has a population of about 4.8 million.
Right now it is 84°F (29°C) in Harris County with clear. It feels like 89°F. Today runs from 80°F to 99°F. Chance of precipitation is 7%. Sightseeing conditions score 8.9/10 - excellent - go now.
The best time to visit Harris County is February, March, August, September, October and November. The climate is temperate. January, May and July tend to be the least comfortable months. August is the warmest month with average highs near 95°F, while January is the coldest with lows near 43°F.
The closest major airport is George Bush Intercontinental Airport (IAH), about 16 mi away. Nearby highlights include Enchanted Rock State Natural Area.
In plain terms. Today is slightly warmer than average for August. The forecast high of 99°F is 4.3°F above the 95°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. swimming is the strongest bet in Harris County today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Harris County
| Type | County |
|---|---|
| State | Texas |
| Country | United States |
| Continent | North America |
| Coordinates | 29°45′37.4″N 95°22′11.3″W (29.7604, -95.3698) |
| Population | 4.800.000 |
| Local time | 10:10 PM (UTC-05:00) |
| Best months | February, March, August, September, October and November |
| Climate | Temperate |
Weather map for Harris County
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Harris County
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Harris County?
Harris County is a county in Texas. Its coordinates are 29.7604, -95.3698. It lies in North America.
What is the weather like in Harris County right now?
It is currently 84°F (29°C) with clear. Humidity is 65% and wind is 7 mph.
When is the best time to visit Harris County?
February, March, August, September, October and November offer the most comfortable conditions in Harris County, which has a temperate climate. January, May and July are usually the hardest months for outdoor plans.
What time zone is Harris County in?
Harris County observes America/Chicago (UTC-05:00). The local time is 10:10 PM.
How many people live in Harris County?
Harris County has a population of approximately 4.8 million.
What is the nearest airport to Harris County?
The closest airports are George Bush Intercontinental Airport (IAH), 16 mi away, Austin-Bergstrom International Airport (AUS), 141 mi away and Dallas/Fort Worth International Airport (DFW), 238 mi away.
What are the top things to do in Harris County?
Popular options include Enchanted Rock State Natural Area.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 10:10 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
