Roma, United States experiences average highs of 32°C (90°F) and lows of 20°C (68°F) throughout the year. The climate is relatively dry, with only 5 rainy days per month on average. Sunshine is abundant, averaging about 10 hours per day. Average highs have warmed by 0.9°C (1.6°F) across the available records.
Roma, United States Weather & Climate 2026
Monthly climate averages for Roma, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.8/10
Best: January, February, March, November, December
UV Index
7
High
Temperature 32°C / 20°C
Feels Like 32°C / 21°C
Rainy Days 5
Rainfall 39 mm
Sunshine 10 h
Humidity 63%
Wind Speed 24 km/h
Dew Point 18°C
Hottest Month
38°C
August
Avg Low27°C
Rain5days
Coldest Month
12°C
January
Avg High23°C
Rain4days
Driest Month
3days
February
Avg High27°C
Avg Low14°C
Windiest Month
27 km/h
July (Gusts 48)
Worst Time to Visit
Consider avoiding June, July, August, September due to extreme heat, oppressive humidity.
Sun Position
Sunrise 06:44
Daylight 13.8h
Sunset 20:31
Live conditions—
Roma on the map · live conditions
Roma, United States
- Continent
- Americas
- Country
- United States
- City
- Roma
- Population
- 10.2K
- Elevation
- 66 m
- Coordinates
- 26.41°, -99.02°
Seasonal Breakdown
Spring
Mar–May
Avg High 33°C
Avg Low 21°C
Rain 5 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 37°C
Avg Low 26°C
Rain 6 days/mo
Autumn
Sep–Nov
Avg High 31°C
Avg Low 21°C
Rain 6 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 25°C
Avg Low 13°C
Rain 4 days/mo
3/3 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: 23°C / 12°C . Feb: 27°C / 14°C . Mar: 31°C / 18°C . Apr: 33°C / 21°C . May: 35°C / 24°C . Jun: 37°C / 26°C . Jul: 38°C / 26°C . Aug: 38°C / 27°C . Sep: 35°C / 25°C . Oct: 32°C / 21°C . Nov: 27°C / 17°C . Dec: 24°C / 14°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 20 mm. Feb: 17 mm. Mar: 34 mm. Apr: 36 mm. May: 63 mm. Jun: 52 mm. Jul: 50 mm. Aug: 29 mm. Sep: 80 mm. Oct: 25 mm. Nov: 39 mm. Dec: 23 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 63%. Feb: 62%. Mar: 60%. Apr: 61%. May: 65%. Jun: 63%. Jul: 60%. Aug: 58%. Sep: 66%. Oct: 64%. Nov: 68%. Dec: 67%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 23 km/h . Mar: 26 km/h . Apr: 26 km/h . May: 26 km/h . Jun: 26 km/h . Jul: 27 km/h . Aug: 26 km/h . Sep: 22 km/h . Oct: 22 km/h . Nov: 20 km/h . Dec: 20 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 8h. Mar: 9h. Apr: 10h. May: 11h. Jun: 12h. Jul: 12h. Aug: 12h. Sep: 10h. Oct: 10h. Nov: 8h. Dec: 7h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 7. Apr: UV 8. May: UV 8. Jun: UV 9. Jul: UV 9. Aug: UV 9. Sep: UV 8. 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 0.9°C (1.6°F) across the available records. Average rainfall is trending drier by about 18 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 38°C | Aug · 38°C |
| Coldest month | Jan 2025 · 10°C | Jan · 12°C |
| Wettest month | May 2025 · 66 mm | Sep · 80 mm |
| Windiest month | Apr 2025 · 29 km/h | Jul · 27 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April
Good May
Fair June
Poor July
Poor August
Poor September
Poor October
Excellent November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 23°C / 12°C | 21°C / 10°C | 4days (20 mm) Good | 7.3h Good | 63% Muggy | 4.3 Moderate | Excellent | View Details |
| February best | 27°C / 14°C | 25°C / 13°C | 3days (17 mm) Excellent | 8.2h Good | 62% Muggy | 5.4 High | Excellent | View Details |
| March best | 31°C / 18°C | 30°C / 17°C | 3days (34 mm) Excellent | 9.1h Good | 60% Moderate | 7 High | Excellent | View Details |
| April | 33°C / 21°C | 33°C / 21°C | 5days (36 mm) Good | 9.9h Good | 61% Muggy | 7.5 Very High | Good | View Details |
| May | 35°C / 24°C | 37°C / 26°C | 7days (63 mm) Good | 11.1h Excellent | 65% Muggy | 8.3 Very High | Fair | View Details |
| June | 37°C / 26°C | 39°C / 29°C | 6days (52 mm) Good | 12.3h Excellent | 63% Muggy | 8.5 Very High | Poor | View Details |
| July | 38°C / 26°C | 39°C / 30°C | 6days (50 mm) Good | 12h Excellent | 60% Moderate | 8.5 Very High | Poor | View Details |
| August | 38°C / 27°C | 40°C / 31°C | 5days (29 mm) Good | 11.8h Excellent | 58% Moderate | 8.5 Very High | Poor | View Details |
| September | 35°C / 25°C | 37°C / 29°C | 8days (80 mm) Wet | 10.3h Excellent | 66% Muggy | 7.7 Very High | Poor | View Details |
| October | 32°C / 21°C | 33°C / 23°C | 5days (25 mm) Good | 9.5h Good | 64% Muggy | 6.4 High | Excellent | View Details |
| November best | 27°C / 17°C | 27°C / 17°C | 5days (39 mm) Good | 7.7h Good | 68% Muggy | 4.8 Moderate | Excellent | View Details |
| December best | 24°C / 14°C | 23°C / 13°C | 4days (23 mm) Good | 7.4h Good | 67% Muggy | 4.3 Moderate | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Roma are January, February, March, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Roma, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Roma is August, with average daytime highs of 38°C (100°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Roma is January, with average overnight lows of 12°C (54°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Roma is September, averaging 80mm of precipitation across 8 rainy days. An umbrella or waterproof jacket is essential.
Roma receives approximately 117 sunshine hours per year. The sunniest month is June with around 12 hours. Based on climate data for Roma.
The least favorable months to visit Roma are June, July, August, September, primarily due to extreme heat, oppressive humidity. For the best conditions, consider January, February, March, November, December instead.
The annual average UV index in Roma is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Roma is 63%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Average wind speeds in Roma are 24 km/h (15 mph). The windiest month is July with peak winds reaching 27 km/h (17 mph) (gusts up to 48 km/h / 30 mph).
Roma averages 9 clear-sky days per month with overall cloud cover around 45%. The clearest skies occur in October.
The annual average dew point in Roma is 18°C (64°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Roma has a Hot Semi-Arid climate, classified as BSh under the Köppen system. Arid climates have very low rainfall relative to temperature, with large swings between daytime heat and cool nights.
The 'feels like' temperature in Roma ranges from 21°C (70°F) to 32°C (90°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 Roma, with a climate score of 3.4/10. Consider visiting during January, February, March, November, December instead for better conditions.
For June in Roma, pack Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses. With average highs of 37°C (98°F) and 6 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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