Tucson, United States experiences average highs of 29°C (84°F) and lows of 15°C (59°F) throughout the year. The climate is relatively dry, with only 3 rainy days per month on average. Sunshine is abundant, averaging about 11 hours per day. Average highs have warmed by 0.9°C (1.6°F) across the available records.
Tucson, United States Weather & Climate 2026
Monthly climate averages for Tucson, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Mar–Dec 
Wetter season: Jan–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.3/10
Best: March, April, May, October, November
UV Index
7
High
Temperature 29°C / 15°C
Feels Like 27°C / 13°C
Rainy Days 3
Rainfall 19 mm
Sunshine 11 h
Humidity 36%
Wind Speed 18 km/h
Dew Point 5°C
Snow Days 1 days
Frost Days 3 days
Hottest Month
38°C
June
Avg Low23°C
Rain1days
Coldest Month
4°C
January
Avg High18°C
Rain4days
Driest Month
1days
April
Avg High30°C
Avg Low13°C
Windiest Month
21 km/h
April (Gusts 45)
Worst Time to Visit
Consider avoiding July, August due to extreme heat.
Sun Position
Sunrise 05:18
Daylight 14.3h
Sunset 19:33
Live conditions—
Tucson on the map · live conditions
Tucson, United States
- Continent
- Americas
- Country
- United States
- City
- Tucson
- Population
- 542.6K
- Elevation
- 759 m
- Coordinates
- 32.22°, -110.93°
Seasonal Breakdown
Spring
Mar–May
Avg High 29°C
Avg Low 13°C
Rain 2 days/mo
3/3 best months
Summer
Jun–Aug
Avg High 38°C
Avg Low 25°C
Rain 5 days/mo
Autumn
Sep–Nov
Avg High 30°C
Avg Low 16°C
Rain 3 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 20°C
Avg Low 5°C
Rain 4 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: 18°C / 4°C . Feb: 21°C / 6°C . Mar: 24°C / 9°C . Apr: 30°C / 13°C . May: 33°C / 18°C . Jun: 38°C / 23°C . Jul: 38°C / 26°C . Aug: 37°C / 25°C . Sep: 35°C / 22°C . Oct: 31°C / 16°C . Nov: 24°C / 10°C . Dec: 20°C / 6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 29 mm. Feb: 28 mm. Mar: 15 mm. Apr: 3 mm. May: 3 mm. Jun: 8 mm. Jul: 39 mm. Aug: 34 mm. Sep: 24 mm. Oct: 12 mm. Nov: 15 mm. Dec: 23 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 51%. Feb: 43%. Mar: 35%. Apr: 22%. May: 19%. Jun: 20%. Jul: 40%. Aug: 44%. Sep: 39%. Oct: 33%. Nov: 38%. Dec: 48%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 16 km/h . Feb: 18 km/h . Mar: 20 km/h . Apr: 21 km/h . May: 21 km/h . Jun: 20 km/h . Jul: 18 km/h . Aug: 16 km/h . Sep: 17 km/h . Oct: 17 km/h . Nov: 15 km/h . Dec: 14 km/h .
Sunshine
Sunshine
Sunshine: Jan: 9h. Feb: 10h. Mar: 11h. Apr: 12h. May: 13h. Jun: 13h. Jul: 12h. Aug: 12h. Sep: 11h. Oct: 10h. Nov: 9h. Dec: 8h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 6. Mar: UV 7. Apr: UV 8. May: UV 9. 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
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 1 days. Feb: 1 days. Mar: 0 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 1 days.
Climate Trends
Average highs have warmed by 0.9°C (1.6°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 39°C | Jun · 38°C |
| Coldest month | Jan 2025 · 3°C | Jan · 4°C |
| Wettest month | Oct 2025 · 43 mm | Jul · 39 mm |
| Windiest month | Mar 2025 · 22 km/h | Apr · 21 km/h |
Month-by-Month Weather Table
January
Fair 
February
Fair March best
Excellent April best
Excellent May best
Excellent June
Good July
Poor August
Fair September
Good October best
Excellent November best
Excellent December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 18°C / 4°C | 15°C / 0°C | 4days (29 mm) Good | 8.7h Good | 51% Moderate | 4.3 Moderate | Fair | View Details |
| February | 21°C / 6°C | 17°C / 2°C | 5days (28 mm) Good | 9.6h Good | 43% Moderate | 5.6 High | Fair | View Details |
| March best | 24°C / 9°C | 21°C / 6°C | 3days (15 mm) Excellent | 10.7h Excellent | 35% Comfortable | 6.8 High | Excellent | View Details |
| April best | 30°C / 13°C | 26°C / 10°C | 1days (3 mm) Excellent | 12h Excellent | 22% Comfortable | 8.1 Very High | Excellent | View Details |
| May best | 33°C / 18°C | 30°C / 14°C | 1days (3 mm) Excellent | 12.7h Excellent | 19% Comfortable | 8.7 Very High | Excellent | View Details |
| June | 38°C / 23°C | 36°C / 22°C | 1days (8 mm) Excellent | 12.9h Excellent | 20% Comfortable | 8.9 Very High | Good | View Details |
| July | 38°C / 26°C | 39°C / 27°C | 8days (39 mm) Wet | 12.3h Excellent | 40% Comfortable | 8.9 Very High | Poor | View Details |
| August | 37°C / 25°C | 38°C / 27°C | 7days (34 mm) Good | 11.9h Excellent | 44% Moderate | 8.5 Very High | Fair | View Details |
| September | 35°C / 22°C | 35°C / 22°C | 4days (24 mm) Good | 11.1h Excellent | 39% Comfortable | 7.5 Very High | Good | View Details |
| October best | 31°C / 16°C | 28°C / 14°C | 2days (12 mm) Excellent | 10.3h Excellent | 33% Comfortable | 6.3 High | Excellent | View Details |
| November best | 24°C / 10°C | 21°C / 7°C | 2days (15 mm) Excellent | 9.3h Good | 38% Comfortable | 4.7 Moderate | Excellent | View Details |
| December | 20°C / 6°C | 16°C / 2°C | 3days (23 mm) Excellent | 8.4h Good | 48% Moderate | 4.1 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Tucson are March, April, May, October, November, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Tucson, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Tucson is June, with average daytime highs of 38°C (101°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Tucson is January, with average overnight lows of 4°C (39°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Tucson is July, averaging 39mm of precipitation across 8 rainy days. An umbrella or waterproof jacket is essential.
Tucson receives approximately 130 sunshine hours per year. The sunniest month is June with around 13 hours. Based on climate data for Tucson.
The least favorable months to visit Tucson are July, August, primarily due to extreme heat. For the best conditions, consider March, April, May, October, November instead.
The annual average UV index in Tucson is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Tucson is 36%, classified as dry. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Tucson receives snow. Months with snowfall average 1 snow days and 1 cm (0 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in Tucson are 18 km/h (11 mph). The windiest month is April with peak winds reaching 21 km/h (13 mph) (gusts up to 45 km/h / 28 mph).
Tucson averages 14 clear-sky days per month with overall cloud cover around 31%. The clearest skies occur in May.
The annual average dew point in Tucson is 5°C (41°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Tucson has a Hot Desert climate, classified as BWh 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 Tucson ranges from 13°C (55°F) to 27°C (81°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Tucson. It earns a climate score of 7.7/10 with Good.
For June in Tucson, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 38°C (101°F) and 1 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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