Río Grande in Summer
In summer (June, July and August), Río Grande sees average daytime highs around 28°C and overnight lows near 16°C, with 204 mm of rain over about 31 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 30°C in early June to 26°C by late August. The sky is clear or mostly clear about 44% of the time across summer, and the air most often feels dry.
Summer is Río Grande's weakest season of the year to visit on our travel score. For the whole year in context, see Río Grande's year-round climate.
- Avg daytime high
- 28°C
- 2nd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 204 mm
- 31 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.3
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Río Grande in Summer
Over the season highs ease from about 30°C in early June to 26°C by late August.
A typical summer day in Río Grande reaches about 28°C and drops to 16°C overnight. The warmest of the three months is June, the coolest August.
Río Grande weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 20° / 5° | 13 | 2.4 | 10.7 | 7.8 |
| Feb | 23° / 7° | 11 | 1.6 | 11.2 | 8.5 |
| Mar | 25° / 9° | 8 | 1.4 | 11.8 | 8.5 |
| Apr | 28° / 12° | 7 | 1.6 | 12.5 | 7.4 |
| May | 30° / 15° | 15 | 3.2 | 13.1 | 6.2 |
| Jun | 29° / 16° | 56 | 8.5 | 13.4 | 6.0 |
| Jul | 27° / 16° | 78 | 11.2 | 13.3 | 6.4 |
| Aug | 27° / 16° | 70 | 10.9 | 12.8 | 6.5 |
| Sep | 25° / 15° | 86 | 11.8 | 12.1 | 6.6 |
| Oct | 25° / 12° | 28 | 4.8 | 11.4 | 8.1 |
| Nov | 23° / 8° | 11 | 2.2 | 10.8 | 8.5 |
| Dec | 21° / 6° | 8 | 1.8 | 10.6 | 8.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 44% of the time across summer.
Chance of precipitation in Summer
Río Grande gets around 204 mm of rain over 31 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 24 min in early June to 12 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.0 kWh/m².
Is summer a good time to visit Río Grande?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Río Grande for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Río Grande in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Río Grande sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 31 days see rain.
UV index in Río Grande in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Río Grande peaks around May 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 7 | 10 | 11 | 13 | 14 | 14 | 13 | 13 | 12 | 10 | 7 | 6 |
| Level | High | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | High |
| Feb | 10 | Very high |
| Mar | 11 | Extreme |
| Apr | 13 | Extreme |
| May | 14 | Extreme |
| Jun | 14 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 7 | Very high |
| Dec | 6 | High |
Where is Río Grande?
Río Grande sits at 23.8°N, 103.0°W, 1,859 m above sea level, in Mexico. The nearest listed city is Juan Aldama, 63 km away.
Topography around Río Grande
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Río Grande.
Within 3 km, the terrain around Río Grande has only modest variations in elevation — a maximum elevation change of 96 m around an average of 1,878 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,533 m.
The land around Río Grande is covered by shrubs (40%), artificial surfaces (30%) and cropland (20%) within 3 km, shrubs (77%) within 16 km, and shrubs (64%) and cropland (30%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Río Grande (23.8273°, -103.0341°, elevation 1,859 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.