Dublin, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Dublin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——75°56°—
- MondayJul 6Overcast——72°53°-3°
- TuesdayJul 7Foggy——74°54°+2°
- WednesdayJul 8Clear——85°53°+11°
- ThursdayJul 9Clear——83°57°-2°
- FridayJul 10Partly Cloudy——88°56°+5°
- SaturdayJul 11Overcast——91°59°+3°
AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.7 µg/m³, PM10 at 10.4 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
PM × Wind × Precip
PM2.5 at 7.7 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.74
- Wind
- light
- 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
- 11:26 PM
- Moonset
- 11:26 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Dublin at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 94568
16-Day Forecast — Dublin
- Sun75°56°2%
- Mon72°53°1%
- Tue74°54°1%
- Wed85°53°0%
- Thu83°57°0%
- Fri88°56°0%
- Sat91°59°0%
- Sun95°62°1%
- Mon101°70°3%
- Tue97°69°4%
- Wed86°69°0%
- Thu97°70°3%
- Fri103°75°0%
- Sat104°77°0%
- Sun99°70°3%
- Mon89°64°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Dublin
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
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Dublin's warmest month is July (~69°F mean) and its coldest is January (~49°F). Rainfall peaks in January (3.4 inches) and bottoms out in July (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.4″ | 13 |
| February | 51° | 3.3″ | 12 |
| March | 53° | 2.7″ | 13 |
| April | 57° | 1.4″ | 9 |
| May | 63° | 0.5″ | 4 |
| June | 67° | 0.0″ | 1 |
| July | 69° | 0.0″ | 1 |
| August | 69° | 0.0″ | 1 |
| September | 69° | 0.1″ | 1 |
| October | 64° | 0.5″ | 4 |
| November | 55° | 2.1″ | 8 |
| December | 49° | 3.0″ | 12 |
Regional context
In Dublin, NOAA NCEI 1991-2020 normals put January near 49°F and July near 69°F — a 21°F seasonal arc — with about 17.2 inches of precipitation over 79 rainy or snowy days.
Precipitation in Dublin peaks in the cool season: January averages 3.4 inches across 13.3 storm-fed days, while July bottoms out at 0.0 inches over just 0.9 rainy days. That groups Dublin with places like Pleasanton, CA, San Ramon, CA and Camino Tassajara, CA on the same cool-season storm track.
With a coldest-month mean of 49°F, Dublin stays mostly frost-free and grows year-round. The July peak near 69°F is Dublin's real limit, pushing cool-season vegetables to spring and fall. Dublin's coastal lots stay 4-7°F milder overnight than Dublin's inland parcels.
Similar climates: Pleasanton, CA, San Ramon, CA, Camino Tassajara, CA, Norris Canyon, CA, Blackhawk, CA.
Frequently asked
- When does it freeze in Dublin?
- Dublin's last spring frost lands near mid-April, and in Dublin the first fall frost follows around mid-November.
- What is the rainy season in Dublin?
- Dublin sees its heaviest rain in January (around 3.4 inches), part of roughly 17 inches a year.
- What is the warmest month in Dublin?
- The warmest stretch in Dublin comes in July, around 69°F on average.
- What is the coldest month in Dublin?
- On average January is the chilliest month in Dublin, about 49°F.
- When can I start a vegetable garden in Dublin?
- Time tomatoes in Dublin for two weeks after mid-April; peas and greens start at Dublin's frost line.
- How many rainy days does Dublin get?
- Expect roughly 79 wet days a year in Dublin.
- What hardiness zone is Dublin?
- Dublin's hardiness zone tracks its winter low; with January near 49°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Dublin?
- Dublin'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 Dublin?
- See this week's day-by-day rain chances for Dublin in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Dublin?
- Current conditions for Dublin and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Dublin forecast updated?
- The Dublin forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Dublin?
- Today's sunrise and sunset times for Dublin 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 Dublin?
- The next few days in Dublin's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Dublin's hot-summer Mediterranean climate in California pairs 49°F Januarys with 69°F Julys, 20°F apart across the seasons.
In a typical year Dublin records about 17 inches of precipitation on around 79 days.
The 20°F gap between Dublin's summer and winter, at 37.7°N, shapes Dublin's frost calendar.
ZIP codes in Dublin
- 94568