Riobamba, Ecuador experiences average highs of 18°C (64°F) and lows of 10°C (50°F) throughout the year. Rainfall is frequent, averaging about 20 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have cooled by 1.4°C (2.5°F) across the available records.
Riobamba, Ecuador Weather & Climate 2026
Monthly climate averages for Riobamba, Ecuador. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.2/10
Best: July, August, September
UV Index
7
High
Temperature 18°C / 10°C
Feels Like 19°C / 8°C
Rainy Days 20
Rainfall 129 mm
Sunshine 9 h
Humidity 84%
Wind Speed 9 km/h
Dew Point 11°C
Snow Days 1 days
Hottest Month
20°C
September
Avg Low9°C
Rain11days
Coldest Month
8°C
August
Avg High19°C
Rain9days
Driest Month
9days
August
Avg High19°C
Avg Low8°C
Windiest Month
12 km/h
July (Gusts 40)
Worst Time to Visit
Consider avoiding January, February, March, April due to heavy rainfall.
Sun Position
Sunrise 06:16
Daylight 12h
Sunset 18:17
Live conditions—
Riobamba on the map · live conditions
Riobamba, Ecuador
- Continent
- Americas
- Country
- Ecuador
- City
- Riobamba
- Population
- 264K
- Coordinates
- -1.67°, -78.66°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 19°C
Avg Low 9°C
Rain 19 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 18°C
Avg Low 10°C
Rain 24 days/mo
Autumn
Mar–May
Avg High 18°C
Avg Low 10°C
Rain 25 days/mo
Winter
Jun–Aug
Avg High 18°C
Avg Low 8°C
Rain 13 days/mo
2/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 18°C / 10°C . Feb: 18°C / 11°C . Mar: 18°C / 10°C . Apr: 18°C / 10°C . May: 18°C / 10°C . Jun: 18°C / 9°C . Jul: 17°C / 8°C . Aug: 19°C / 8°C . Sep: 20°C / 9°C . Oct: 19°C / 10°C . Nov: 19°C / 10°C . Dec: 18°C / 10°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 161 mm. Feb: 183 mm. Mar: 239 mm. Apr: 196 mm. May: 126 mm. Jun: 88 mm. Jul: 63 mm. Aug: 35 mm. Sep: 44 mm. Oct: 126 mm. Nov: 149 mm. Dec: 140 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 86%. Feb: 87%. Mar: 88%. Apr: 88%. May: 87%. Jun: 85%. Jul: 83%. Aug: 77%. Sep: 75%. Oct: 82%. Nov: 85%. Dec: 85%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 9 km/h . Feb: 8 km/h . Mar: 9 km/h . Apr: 9 km/h . May: 9 km/h . Jun: 10 km/h . Jul: 12 km/h . Aug: 12 km/h . Sep: 11 km/h . Oct: 9 km/h . Nov: 8 km/h . Dec: 8 km/h .
Sunshine
Sunshine
Sunshine: Jan: 9h. Feb: 9h. Mar: 8h. Apr: 8h. May: 9h. Jun: 10h. Jul: 10h. Aug: 10h. Sep: 11h. Oct: 9h. Nov: 9h. Dec: 10h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 8. Feb: UV 8. Mar: UV 8. Apr: UV 8. May: UV 6. Jun: UV 6. Jul: UV 6. Aug: UV 7. Sep: UV 8. Oct: UV 8. Nov: UV 8. Dec: UV 8.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 0 days. Feb: 0 days. Mar: 0 days. Apr: 0 days. May: 0 days. Jun: 1 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 0 days.
Climate Trends
Average highs have cooled by 1.4°C (2.5°F) across the available records. Average rainfall is trending wetter by about 52 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Dec 2025 · 19°C | Sep · 20°C |
| Coldest month | Aug 2025 · 8°C | Aug · 8°C |
| Wettest month | Mar 2025 · 307 mm | Mar · 239 mm |
| Windiest month | Mar 2025 · 14 km/h | Jul · 12 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Wet May
Wet June
Wet 
July best
Good August best
Good September best
Good October
Wet November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 18°C / 10°C | 20°C / 9°C | 23days (161 mm) Wet | 9.3h Good | 86% Very Muggy | 7.6 Very High | Wet | View Details |
| February | 18°C / 11°C | 20°C / 10°C | 24days (183 mm) Wet | 8.7h Good | 87% Very Muggy | 8 Very High | Wet | View Details |
| March | 18°C / 10°C | 20°C / 10°C | 28days (239 mm) Wet | 8h Good | 88% Very Muggy | 7.9 Very High | Wet | View Details |
| April | 18°C / 10°C | 20°C / 9°C | 26days (196 mm) Wet | 8.3h Good | 88% Very Muggy | 7.8 Very High | Wet | View Details |
| May | 18°C / 10°C | 19°C / 9°C | 22days (126 mm) Wet | 9.3h Good | 87% Very Muggy | 6.3 High | Wet | View Details |
| June | 18°C / 9°C | 18°C / 7°C | 18days (88 mm) Wet | 9.5h Good | 85% Humid | 5.5 High | Wet | View Details |
| July best | 17°C / 8°C | 17°C / 6°C | 13days (63 mm) Wet | 10h Excellent | 83% Humid | 5.8 High | Good | View Details |
| August best | 19°C / 8°C | 18°C / 6°C | 9days (35 mm) Wet | 10.4h Excellent | 77% Humid | 7 High | Good | View Details |
| September best | 20°C / 9°C | 20°C / 7°C | 11days (44 mm) Wet | 10.5h Excellent | 75% Muggy | 7.6 Very High | Good | View Details |
| October | 19°C / 10°C | 20°C / 9°C | 22days (126 mm) Wet | 9.3h Good | 82% Humid | 8.1 Very High | Wet | View Details |
| November | 19°C / 10°C | 20°C / 10°C | 24days (149 mm) Wet | 9.2h Good | 85% Humid | 7.8 Very High | Wet | View Details |
| December | 18°C / 10°C | 20°C / 9°C | 24days (140 mm) Wet | 9.7h Good | 85% Humid | 8 Very High | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Riobamba are July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Riobamba, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Riobamba is September, with average daytime highs of 20°C (67°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Riobamba is August, with average overnight lows of 8°C (46°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Riobamba is March, averaging 239mm of precipitation across 28 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Riobamba runs through March, April, February, November, with the heaviest rainfall in March. Based on 10-year averages for Riobamba.
Riobamba receives approximately 112 sunshine hours per year. The sunniest month is September with around 11 hours. Based on climate data for Riobamba.
The least favorable months to visit Riobamba are January, February, March, April, primarily due to heavy rainfall. For the best conditions, consider July, August, September instead.
The annual average UV index in Riobamba is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Riobamba is 84%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes, Riobamba receives snow. Months with snowfall average 1 snow days and 1 cm (0 in) of accumulation, with about 0 frost days during winter.
Average wind speeds in Riobamba are 9 km/h (6 mph). The windiest month is July with peak winds reaching 12 km/h (8 mph) (gusts up to 40 km/h / 25 mph).
Riobamba averages 0 clear-sky days per month with overall cloud cover around 83%. The clearest skies occur in August.
The annual average dew point in Riobamba is 11°C (52°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Riobamba has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Riobamba ranges from 8°C (46°F) to 19°C (66°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Riobamba, with a climate score of 6.5/10. Consider visiting during July, August, September instead for better conditions.
For June in Riobamba, pack Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. With average highs of 18°C (64°F) and 18 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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