Tranquillity, California Weather
Coastal fog thickens at dawn. Day 77 of spring. Read this microseason across nine climate regions →
Tranquillity weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——98°59°—
- FridayJun 5Clear——101°64°+3°
- SaturdayJun 6Overcast——97°63°-4°
- SundayJun 7Clear——93°52°-4°
- MondayJun 8Overcast——92°56°-1°
- TuesdayJun 9Overcast——78°63°-14°
- WednesdayJun 10Partly Cloudy——89°53°+11°
PM2.5/PM10 ratio 0.42 with 6 mph wind — characteristic of long-range haze transport rather than a local source. AQI down 26 over the last 6 hours — air quality is improving sharply.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 12 PM.
What's driving it
PM × Wind × Precip
PM2.5/PM10 ratio 0.42 with 6 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.42
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:23 AM
- Moonset
- 4:18 PM
- In sign
- ♑︎ Capricorn
Coastal fog thickens at dawn
Tranquillity at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: March 27 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, 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.