Cibolo, United States experiences average highs of 27°C (81°F) and lows of 17°C (63°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 1.4°C (2.5°F) across the available records.
Cibolo, United States Weather & Climate 2026
Monthly climate averages for Cibolo, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Jun At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.5/10
Best: March, April, October, November
UV Index
6
High
Temperature 27°C / 17°C
Feels Like 28°C / 17°C
Rainy Days 8
Rainfall 65 mm
Sunshine 9 h
Humidity 67%
Wind Speed 18 km/h
Dew Point 16°C
Frost Days 2 days
Hottest Month
36°C
August
Avg Low25°C
Rain7days
Coldest Month
7°C
January
Avg High17°C
Rain7days
Driest Month
6days
October
Avg High28°C
Avg Low18°C
Windiest Month
21 km/h
April (Gusts 42)
Worst Time to Visit
Consider avoiding July, August due to extreme heat, oppressive humidity.
Sun Position
Sunrise 06:34
Daylight 14h
Sunset 20:36
Live conditions—
Cibolo on the map · live conditions
Cibolo, United States
- Continent
- Americas
- Country
- United States
- City
- Cibolo
- Population
- 33.4K
- Elevation
- 213 m
- Coordinates
- 29.56°, -98.23°
Seasonal Breakdown
Spring
Mar–May
Avg High 27°C
Avg Low 17°C
Rain 11 days/mo
2/3 best months
Summer
Jun–Aug
Avg High 35°C
Avg Low 24°C
Rain 8 days/mo
Autumn
Sep–Nov
Avg High 28°C
Avg Low 18°C
Rain 7 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 19°C
Avg Low 8°C
Rain 7 days/mo
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: 17°C / 7°C . Feb: 20°C / 9°C . Mar: 25°C / 13°C . Apr: 27°C / 16°C . May: 30°C / 20°C . Jun: 33°C / 23°C . Jul: 35°C / 24°C . Aug: 36°C / 25°C . Sep: 32°C / 23°C . Oct: 28°C / 18°C . Nov: 22°C / 13°C . Dec: 19°C / 9°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 52 mm. Feb: 43 mm. Mar: 56 mm. Apr: 87 mm. May: 111 mm. Jun: 66 mm. Jul: 67 mm. Aug: 68 mm. Sep: 75 mm. Oct: 56 mm. Nov: 53 mm. Dec: 51 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 66%. Feb: 70%. Mar: 66%. Apr: 68%. May: 73%. Jun: 70%. Jul: 65%. Aug: 62%. Sep: 66%. Oct: 63%. Nov: 70%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 19 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 19 km/h . Jun: 18 km/h . Jul: 18 km/h . Aug: 17 km/h . Sep: 16 km/h . Oct: 17 km/h . Nov: 17 km/h . Dec: 18 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 7h. Mar: 8h. Apr: 9h. May: 10h. Jun: 12h. Jul: 12h. Aug: 12h. Sep: 10h. Oct: 9h. Nov: 7h. Dec: 7h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 9. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 5. Dec: UV 4.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have warmed by 1.4°C (2.5°F) across the available records. Average rainfall is trending drier by about 27 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 36°C | Aug · 36°C |
| Coldest month | Jan 2025 · 5°C | Jan · 7°C |
| Wettest month | Jul 2025 · 170 mm | May · 111 mm |
| Windiest month | Mar 2025 · 22 km/h | Apr · 21 km/h |
Month-by-Month Weather Table
January
Fair 
February
Good March best
Excellent April best
Excellent May
Good June
Fair July
Poor August
Poor September
Fair October best
Excellent November best
Excellent December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 17°C / 7°C | 15°C / 4°C | 7days (52 mm) Good | 7h Good | 66% Muggy | 3.8 Moderate | Fair | View Details |
| February | 20°C / 9°C | 19°C / 6°C | 7days (43 mm) Good | 6.9h Fair | 70% Muggy | 5 Moderate | Good | View Details |
| March best | 25°C / 13°C | 24°C / 12°C | 8days (56 mm) Wet | 8h Good | 66% Muggy | 6.3 High | Excellent | View Details |
| April best | 27°C / 16°C | 28°C / 16°C | 11days (87 mm) Wet | 8.9h Good | 68% Muggy | 7 High | Excellent | View Details |
| May | 30°C / 20°C | 33°C / 22°C | 13days (111 mm) Wet | 10.2h Excellent | 73% Muggy | 7.9 Very High | Good | View Details |
| June | 33°C / 23°C | 37°C / 27°C | 10days (66 mm) Wet | 12.1h Excellent | 70% Muggy | 8.5 Very High | Fair | View Details |
| July | 35°C / 24°C | 38°C / 28°C | 8days (67 mm) Wet | 12h Excellent | 65% Muggy | 8.3 Very High | Poor | View Details |
| August | 36°C / 25°C | 39°C / 29°C | 7days (68 mm) Good | 11.5h Excellent | 62% Muggy | 8.3 Very High | Poor | View Details |
| September | 32°C / 23°C | 35°C / 26°C | 8days (75 mm) Wet | 10.2h Excellent | 66% Muggy | 7.4 Very High | Fair | View Details |
| October best | 28°C / 18°C | 29°C / 18°C | 6days (56 mm) Good | 9.3h Good | 63% Muggy | 6.1 High | Excellent | View Details |
| November best | 22°C / 13°C | 22°C / 11°C | 8days (53 mm) Wet | 7.1h Good | 70% Muggy | 4.5 Moderate | Excellent | View Details |
| December | 19°C / 9°C | 18°C / 7°C | 7days (51 mm) Good | 6.5h Fair | 70% Muggy | 3.8 Moderate | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Cibolo are March, April, October, November, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Cibolo, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Cibolo is August, with average daytime highs of 36°C (96°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Cibolo is January, with average overnight lows of 7°C (44°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Cibolo is May, averaging 111mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Cibolo runs through May, April, June, with the heaviest rainfall in May. Based on 10-year averages for Cibolo.
Cibolo receives approximately 110 sunshine hours per year. The sunniest month is June with around 12 hours. Based on climate data for Cibolo.
The least favorable months to visit Cibolo are July, August, primarily due to extreme heat, oppressive humidity. For the best conditions, consider March, April, October, November instead.
The annual average UV index in Cibolo is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Cibolo is 67%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Cibolo rarely sees significant snowfall but does experience frost, averaging 2 frost days during the colder months.
Average wind speeds in Cibolo are 18 km/h (11 mph). The windiest month is April with peak winds reaching 21 km/h (13 mph) (gusts up to 42 km/h / 26 mph).
Cibolo averages 6 clear-sky days per month with overall cloud cover around 53%. The clearest skies occur in October.
The annual average dew point in Cibolo is 16°C (61°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Cibolo has a Humid Subtropical climate, classified as Cfa 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 Cibolo ranges from 17°C (63°F) to 28°C (82°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 Cibolo, with a climate score of 5.1/10. Consider visiting during March, April, October, November instead for better conditions.
For June in Cibolo, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 33°C (92°F) and 10 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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