Tracy, United States experiences average highs of 25°C (77°F) and lows of 11°C (52°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 stayed broadly stable across the available records.
Tracy, United States Weather & Climate 2026
Monthly climate averages for Tracy, United States. 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
8/10
Best: April, May, June, September, October
UV Index
6
High
Temperature 25°C / 11°C
Feels Like 24°C / 10°C
Rainy Days 5
Rainfall 37 mm
Sunshine 10 h
Humidity 59%
Wind Speed 13 km/h
Dew Point 10°C
Snow Days 1 days
Frost Days 1 days
Hottest Month
35°C
July
Avg Low17°C
Rain0days
Coldest Month
6°C
January
Avg High15°C
Rain10days
Driest Month
0days
June
Avg High33°C
Avg Low16°C
Windiest Month
16 km/h
May (Gusts 39)
Worst Time to Visit
Consider avoiding January, February, December due to less favorable weather conditions.
Sun Position
Sunrise 05:45
Daylight 14.8h
Sunset 20:30
Live conditions—
Tracy on the map · live conditions
Tracy, United States
- Continent
- Americas
- Country
- United States
- City
- Tracy
- Population
- 87.1K
- Elevation
- 16 m
- Coordinates
- 37.74°, -121.43°
Seasonal Breakdown
Spring
Mar–May
Avg High 23°C
Avg Low 10°C
Rain 6 days/mo
2/3 best months
Summer
Jun–Aug
Avg High 34°C
Avg Low 17°C
Rain 0 days/mo
1/3 best months
Autumn
Sep–Nov
Avg High 26°C
Avg Low 13°C
Rain 3 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 15°C
Avg Low 6°C
Rain 9 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: 15°C / 6°C . Feb: 17°C / 6°C . Mar: 19°C / 8°C . Apr: 23°C / 10°C . May: 28°C / 13°C . Jun: 33°C / 16°C . Jul: 35°C / 17°C . Aug: 34°C / 17°C . Sep: 32°C / 16°C . Oct: 27°C / 13°C . Nov: 19°C / 9°C . Dec: 15°C / 6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 99 mm. Feb: 71 mm. Mar: 80 mm. Apr: 26 mm. May: 14 mm. Jun: 1 mm. Jul: 0 mm. Aug: 0 mm. Sep: 4 mm. Oct: 25 mm. Nov: 44 mm. Dec: 83 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 78%. Feb: 69%. Mar: 70%. Apr: 62%. May: 52%. Jun: 44%. Jul: 45%. Aug: 48%. Sep: 51%. Oct: 52%. Nov: 65%. Dec: 74%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 14 km/h . Mar: 14 km/h . Apr: 14 km/h . May: 16 km/h . Jun: 16 km/h . Jul: 15 km/h . Aug: 14 km/h . Sep: 13 km/h . Oct: 12 km/h . Nov: 10 km/h . Dec: 11 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 8h. Mar: 9h. Apr: 11h. May: 13h. Jun: 14h. Jul: 14h. Aug: 13h. Sep: 11h. Oct: 10h. Nov: 8h. Dec: 7h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 6. Oct: UV 5. Nov: UV 4. Dec: UV 3.
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: 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: 0 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 15 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 34°C | Jul · 35°C |
| Coldest month | Jan 2025 · 4°C | Jan · 6°C |
| Wettest month | Feb 2025 · 100 mm | Jan · 99 mm |
| Windiest month | May 2025 · 18 km/h | May · 16 km/h |
Month-by-Month Weather Table
January
Fair 
February
Fair 
March
Good April best
Excellent May best
Excellent June best
Excellent July
Good August
Good September best
Excellent October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 15°C / 6°C | 13°C / 3°C | 10days (99 mm) Wet | 6.8h Fair | 78% Humid | 2.9 Moderate | Fair | View Details |
| February | 17°C / 6°C | 15°C / 4°C | 7days (71 mm) Good | 8.4h Good | 69% Muggy | 3.9 Moderate | Fair | View Details |
| March | 19°C / 8°C | 17°C / 5°C | 11days (80 mm) Wet | 9.3h Good | 70% Muggy | 5.4 High | Good | View Details |
| April best | 23°C / 10°C | 22°C / 8°C | 4days (26 mm) Good | 10.9h Excellent | 62% Muggy | 6.7 High | Excellent | View Details |
| May best | 28°C / 13°C | 27°C / 11°C | 3days (14 mm) Excellent | 12.7h Excellent | 52% Moderate | 7.9 Very High | Excellent | View Details |
| June best | 33°C / 16°C | 32°C / 15°C | 0days (1 mm) Excellent | 13.6h Excellent | 44% Moderate | 8.2 Very High | Excellent | View Details |
| July | 35°C / 17°C | 35°C / 17°C | 0days (0 mm) Excellent | 13.5h Excellent | 45% Moderate | 8.2 Very High | Good | View Details |
| August | 34°C / 17°C | 35°C / 18°C | 0days (0 mm) Excellent | 12.5h Excellent | 48% Moderate | 7.7 Very High | Good | View Details |
| September best | 32°C / 16°C | 31°C / 16°C | 1days (4 mm) Excellent | 11.4h Excellent | 51% Moderate | 6.4 High | Excellent | View Details |
| October best | 27°C / 13°C | 25°C / 12°C | 3days (25 mm) Excellent | 9.7h Good | 52% Moderate | 5 Moderate | Excellent | View Details |
| November | 19°C / 9°C | 18°C / 7°C | 6days (44 mm) Good | 8.1h Good | 65% Muggy | 3.5 Moderate | Good | View Details |
| December | 15°C / 6°C | 13°C / 4°C | 9days (83 mm) Wet | 6.7h Fair | 74% Muggy | 2.8 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Tracy are April, May, June, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Tracy, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Tracy is July, with average daytime highs of 35°C (95°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Tracy is January, with average overnight lows of 6°C (42°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Tracy is January, averaging 99mm of precipitation across 10 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Tracy runs through March, January, with the heaviest rainfall in March. Based on 10-year averages for Tracy.
Tracy receives approximately 124 sunshine hours per year. The sunniest month is June with around 14 hours. Based on climate data for Tracy.
The least favorable months to visit Tracy are January, February, December, primarily due to less favorable weather conditions. For the best conditions, consider April, May, June, September, October instead.
The annual average UV index in Tracy is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Tracy is 59%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Tracy receives snow. Months with snowfall average 1 snow days and 0 cm (0 in) of accumulation, with about 1 frost days during winter.
Average wind speeds in Tracy are 13 km/h (8 mph). The windiest month is May with peak winds reaching 16 km/h (10 mph) (gusts up to 39 km/h / 24 mph).
Tracy averages 14 clear-sky days per month with overall cloud cover around 35%. The clearest skies occur in July.
The annual average dew point in Tracy is 10°C (50°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Tracy has a Hot-Summer Mediterranean climate, classified as Csa 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 Tracy ranges from 10°C (50°F) to 24°C (75°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 Tracy. It earns a climate score of 9.3/10 with Excellent.
For June in Tracy, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 33°C (91°F) and 0 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.
Last updated: