Rio Grande Climate and Average Weather
Climate of Rio Grande: average temperatures, rainfall and seasons month by month.
Climate in Rio Grande 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 | 64° | 45° | 0,2 in | ★★★★☆ |
| February | 76° | 55° | 0,2 in | ★★★★★ |
| March | 82° | 60° | 0,0 in | ★★★★★ |
| April | 88° | 66° | 0,4 in | ★★★★★ |
| May | 95° | 73° | 0,7 in | ★★★★☆ |
| June | 100° | 78° | 0,8 in | ★★★★☆ |
| July | 96° | 77° | 1,6 in | ★★★★☆ |
| August | 98° | 79° | 0,7 in | ★★★★☆ |
| September | 93° | 75° | 0,7 in | ★★★★☆ |
| October | 87° | 68° | 0,3 in | ★★★★★ |
| November | 77° | 58° | 0,3 in | ★★★★★ |
| December | 71° | 53° | 0,2 in | ★★★★★ |
Climate type: Hot and arid. Source: Open-Meteo archive (ERA5).
Recent extremes in Rio Grande
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Rio Grande compares with nearby places
Annual averages, and the difference against Rio Grande.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Big Bend National Park | 0 mi | 75°F | about the same | 6 in |
| Guadalupe Mountains National Park | 216 mi | 53°F | 54°F cooler | 11 in |
| Carlsbad Caverns National Park | 223 mi | 61°F | 46°F cooler | 11 in |
| Enchanted Rock State Natural Area | 282 mi | 69°F | 38°F cooler | 35 in |
| Bexar County | 287 mi | 72°F | 35°F cooler | 41 in |
Best time to visit Rio Grande
Go in February, March, April, May, September, October, November and December. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, July and August - expect the least comfortable mix of heat, cold or rain.
What this means for Rio Grande
Today is about average for September. The forecast high of 92°F is in line with the 93°F typical for this month.
A 18% chance means most of the area stays dry; a passing shower is possible but short.
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 67°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, July and August - historically the least comfortable months here.
Summary
Rio Grande is a river in Texas. Rio Grande is a river known as the US-Mexico border river.
Right now it is 82°F (28°C) in Rio Grande with overcast. It feels like 81°F. Today runs from 73°F to 92°F. Chance of precipitation is 18%. Sightseeing conditions score 8.5/10 - excellent - go now.
The best time to visit Rio Grande is February, March, April, May, September, October, November and December. The climate is hot and arid. January, July and August tend to be the least comfortable months. June is the warmest month with average highs near 100°F, while January is the coldest with lows near 45°F.
Nearby highlights include Big Bend National Park, Guadalupe Mountains National Park and Carlsbad Caverns National Park.
In plain terms. Today is about average for September. The forecast high of 92°F is in line with the 93°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. family time is the strongest bet in Rio Grande today at 8.9/10. 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 Rio Grande
| Type | River |
|---|---|
| State | Texas |
| Country | United States |
| Continent | North America |
| Coordinates | 29°7′39″N 103°14′33″W (29.1275, -103.2425) |
| Length | 1.896 mi |
| Known for | the US-Mexico border river |
| Local time | 10:07 PM (UTC-05:00) |
| Best months | February, March, April, May, September, October, November and December |
| Climate | Hot and arid |
Weather map for Rio Grande
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 Rio Grande
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 Rio Grande?
Rio Grande is a river in Texas. Its coordinates are 29.1275, -103.2425. It lies in North America.
What is the weather like in Rio Grande right now?
It is currently 82°F (28°C) with overcast. Humidity is 48% and wind is 12 mph.
When is the best time to visit Rio Grande?
February, March, April, May, September, October, November and December offer the most comfortable conditions in Rio Grande, which has a hot and arid climate. January, July and August are usually the hardest months for outdoor plans.
What time zone is Rio Grande in?
Rio Grande observes America/Chicago (UTC-05:00). The local time is 10:07 PM.
What are the top things to do in Rio Grande?
Popular options include Big Bend National Park, Guadalupe Mountains National Park and Carlsbad Caverns National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (rivers) - 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 September 24, 2026 at 10:07 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
