Sun City, Arizona Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Sun City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——110°84°—
- MondayJul 6Overcast——109°84°-1°
- TuesdayJul 7Overcast——111°87°+2°
- WednesdayJul 8Clear——111°90°0°
- ThursdayJul 9Clear——111°93°0°
- FridayJul 10Overcast——108°87°-3°
- SaturdayJul 11Partly Cloudy——108°90°0°
AQI 55 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.2 µg/m³, PM10 at 28.5 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40 now. With UV 9.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 52 around 1 PM.
- Present
- AQI 40
- UV peak
- 9.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 52
PM × Wind × Precip
PM2.5 at 12.2 µg/m³, PM10 at 28.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.43
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:45 PM
- Moonset
- 10:47 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Sun City at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: March 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 85351, 85373
16-Day Forecast — Sun City
- Sun110°84°4%
- Mon109°84°2%
- Tue111°87°0%
- Wed111°90°0%
- Thu111°93°1%
- Fri108°87°2%
- Sat108°90°3%
- Sun109°88°10%
- Mon112°88°18%
- Tue104°83°16%
- Wed106°84°11%
- Thu111°91°19%
- Fri117°99°26%
- Sat116°103°27%
- Sun113°98°23%
- Mon116°96°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Microseason · July 1–5
The monsoon settles in
Afternoon thunderstorms now daily ritual. Rains transform the desert green within 72 hours. Dust clears; air smells alive. Microburst winds flatten entire sections of mesquite.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
Sun City peaks at about 92°F in July and bottoms near 52°F in December; February brings the heaviest rain (1.3 inches) and June the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 53° | 1.0″ | 2 |
| February | 56° | 1.3″ | 3 |
| March | 63° | 1.0″ | 2 |
| April | 70° | 0.3″ | 1 |
| May | 78° | 0.1″ | 0 |
| June | 87° | 0.0″ | 0 |
| July | 92° | 0.8″ | 2 |
| August | 91° | 1.0″ | 2 |
| September | 85° | 0.7″ | 1 |
| October | 73° | 0.6″ | 1 |
| November | 61° | 0.6″ | 1 |
| December | 52° | 0.9″ | 2 |
Regional context
Sun City's climate, from NOAA NCEI 1991-2020 station normals, pairs 53°F Januarys with 92°F Julys — a 39°F swing. About 8.3 inches of precipitation falls over roughly 18 days a year.
Sun City's moisture rides winter storm tracks: February brings 1.3 inches over 2.5 wet days, while June sees only 0.0 inches across 0.1 days in the dry warm season. That groups Sun City with places like Youngtown, AZ, El Mirage, AZ and Glendale, AZ on the same cool-season storm track.
Sun City rarely sees a hard freeze — its coldest month sits near 52°F — so planting spans most of the calendar. Heat peaks in July around 92°F, which confines cool-season crops to the shoulders of summer. Within Sun City, low or inland lots lose 3-5°F overnight versus Sun City's coastal ground.
Similar climates: Youngtown, AZ, El Mirage, AZ, Glendale, AZ, Sun City West, AZ, Litchfield Park, AZ.
Frequently asked
- When does it freeze in Sun City?
- In Sun City, expect the last spring frost near mid-March; Sun City's first autumn frost comes around mid-December.
- What is the rainy season in Sun City?
- February is the wettest month in Sun City, about 1.3 inches on average; the year totals roughly 8 inches.
- What is the warmest month in Sun City?
- July is Sun City's warmest month, averaging about 92°F.
- What is the coldest month in Sun City?
- Sun City bottoms out in December, with a mean near 52°F.
- When can I start a vegetable garden in Sun City?
- Time tomatoes in Sun City for two weeks after mid-March; peas and greens start at Sun City's frost line.
- How many rainy days does Sun City get?
- Expect roughly 18 wet days a year in Sun City.
- What hardiness zone is Sun City?
- Sun City's hardiness zone tracks its winter low; with December near 52°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Sun City?
- Sun City's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Sun City?
- See this week's day-by-day rain chances for Sun City in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Sun City?
- Current conditions for Sun City and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Sun City forecast updated?
- The Sun City forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Sun City?
- Today's sunrise and sunset times for Sun City are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Sun City?
- The next few days in Sun City's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Sun City, Arizona has a hot desert climate: January averages roughly 53°F, July about 92°F, 39°F between them.
Rain and snow bring Sun City roughly 8 inches a year across approximately 18 measurable-precipitation days.
Latitude 33.6°N gives Sun City its 39°F swing, and with it the rhythm of Sun City's growing season.
ZIP codes in Sun City
- 85373
- 85351
- 85372