Del Valle Regional Park Weather

ParkSan Francisco Bay Area

Livermore valley lake and camping

70°
😊
Comfort Score
85(A-)
Excellent
Weather updated August 16, 2026 at 9:31 PM PDT

Del Valle Regional Park weather at a glance

Del Valle Regional Park is a park at 800 feet in San Francisco Bay Area. Livermore valley lake and camping. Notable features include sunny, hot, lake, and camping.

Current conditions are 70°F, feeling like 70°F, with 58% humidity, winds near 4 mph, 100% cloud cover, and a 0% chance of precipitation. Warm and overcast.

The location-specific climate baseline shows an average daily high of 71°F and an average low of 49°F, with about 0.0 hours of sunshine per day and 0.0 hours of morning fog per day. Expected annual precipitation is approximately 15.1 inches.

Current Conditions

Temperature
70°F
Feels like 70°F
Humidity
58%
Wind
4 mph
NW • Gusts 6 mph
Cloud Cover
100%
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Temperature100
Wind100
Night Sky5
Humidity85
Precipitation100

Hourly Forecast

Today

TimeTempComfortAQIWindPrecipConditions
Now71°85 (A-)3 mph0%☁️ Cloudy
10pm69°83 (B)5 mph0%☁️ Cloudy
11pm66°80 (B)6 mph0%☁️ Cloudy

Tomorrow

TimeTempComfortAQIWindPrecipConditions
12am65°80 (B)3 mph0%☁️ Cloudy
1am64°79 (B)2 mph0%☁️ Cloudy
2am63°77 (B)2 mph0%☁️ Cloudy
3am61°74 (B-)1 mph0%☁️ Cloudy
4am60°72 (B-)0 mph0%☁️ Cloudy
5am59°71 (B-)3 mph0%☁️ Cloudy
6am59°70 (B-)2 mph0%☁️ Cloudy
7am59°70 (B-)0 mph0%☁️ Cloudy
8am62°75 (B)2 mph0%☁️ Cloudy
How to read the Del Valle Regional Park hourly chart

The hourly chart follows the next 48 forecast hours at Del Valle Regional Park. Use the temperature view to see warming and cooling through the day, and the comfort view to see when the combined temperature, wind, clouds, precipitation, and air quality should feel most favorable.

The wind view compares sustained wind with stronger gusts at Del Valle Regional Park. The AQI view uses the current observation for “Now” and modeled AQI-equivalent guidance for later hours when forecast smoke data is available.

Weather Maps

About the weather maps for Del Valle Regional Park

Each preview is centered on Del Valle Regional Park, with the red pin marking its approximate location. Satellite imagery provides cloud context, radar shows nearby precipitation, and the fog view shows the marine-layer or low-cloud field when that regional layer is available.

These images cover a wider area than the point forecast, so a nearby cloud or rain band may not be directly over Del Valle Regional Park. Open a preview for the interactive map and its latest timestamp before making a weather-sensitive decision.

7-Day Forecast

DayHigh/LowComfortPrecipConditions
Today🏆 Best85° / 56°79 (B)0%☀️ Sunny
Mon84° / 59°79 (B)0%☀️ Sunny
Tue88° / 55°71 (B-)0%☀️ Sunny
Wed96° / 60°73 (B-)0%☀️ Sunny
Thu88° / 60°73 (B-)0%☀️ Sunny
Fri88° / 62°74 (B-)1%☀️ Sunny
Sat87° / 61°75 (B)1%☀️ Sunny

Best day this week: Today (Comfort score: 79)

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
85°Fforecast
2° below normal
Normal: 88°F
Rainfall Year-to-Date
9.7"
7% below average
30-yr avg: 10.5"
Sunny Days
24last 28 days
3 fewer than baseline
Recent baseline: 27
Foggy Days
3last 28 days
vs 5 recent baseline
Clearer than usual
Avg Wind Speed
8.5 mphlast 28 days
Typical conditions
Recent baseline: 9.3 mph
Comfort Score
8628-day avg
3 pts below typical
Recent baseline: 89
What the Del Valle Regional Park climate comparisons mean

These cards compare recent conditions at Del Valle Regional Park with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available; fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.

Positive and negative differences describe how Del Valle Regional Park departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.

Historical Climate Data

Long-term weather patterns and climate data

Data sources: NOAA URMA for recent temperature history, NOAA Stage IV for recent precipitation, NOAA HRRR for fog, cloud, wind, humidity, and sunshine signals, and NOAA 1991-2020 climate normals for long-term baselines.

Climate Overview

Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline

85
Avg Comfort
71.2°
Avg High
48.6°
Avg Low
79%
Perfect Days
☀️ Avg Sunshine (recent)9.8h/day
🌫️ Avg Fog (recent)0.9h/day
💧 Avg Annual Rain15.1"
🌧️ Rainy Days/yr74 (20%)
🌫️ Foggy Days/yr (recent)35
✨ Perfect Days (80+)511

🌟 Best Months to Visit

1. June86
82.3° / 55.2° · ☀️ 13.7h
0 foggy days · 5 rainy days
2. May81
74.2° / 50.4° · ☀️ 12.5h
3 foggy days · 5 rainy days
3. April76
67.3° / 45.7° · ☀️ 11h
3 foggy days · 6 rainy days

⚠️ Challenging Months

1. December42
55.3° / 38.6° · ☀️ 6.6h
💧 3.1" · 8 rainy days · 6 foggy days
2. January49
55.8° / 38.8° · ☀️ 7.9h
💧 3.1" · 8 rainy days · 4 foggy days
3. February50
58.3° / 40.6° · ☀️ 7.3h
💧 2.8" · 8 rainy days · 5 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
August 20248883.9° / 60.9°12.4h1d0.04"25
September 20248984.7° / 59.9°11.1h1d0.21"28
October 20248980.2° / 58.3°10h0d0.25"27
November 20248261.5° / 45.3°7.1h4d2.16"21
December 20247758.8° / 45.3°6.5h8d3.41"19
January 20258556.6° / 41.3°8.1h3d0.52"27
February 20257658.8° / 44.7°6.9h7d3.99"16
March 20258060.4° / 44.7°9.3h5d3.74"19
April 20259068.8° / 48.6°11h5d0.76"26
May 20259075.9° / 53.4°12.9h2d0.13"30
June 20259080.6° / 56.5°13.7h0d0"30
July 20258980.9° / 58.3°13.3h1d0"30
August 20258785.8° / 61.5°12.5h1d0"27
September 20258882.5° / 61.9°10.8h0d0.36"28
October 20259071.6° / 54.7°8.7h3d1.35"25
November 20258163.3° / 50.1°7.4h7d3.19"17
December 20257556.2° / 45°6.8h4d3.04"15
January 20267856.6° / 43.4°7.6h4d2.22"19
February 20268161° / 46.2°7.8h2d4.55"20
March 20269574° / 54.4°10.8h0d0.33"30
April 20268667.1° / 49.7°10.9h1d2.49"23
May 20268770.6° / 52°11.3h2d0.12"9
Last updated: 5/10/2026

Climate Trends

Average Temperature by Month

90°F77°F64°F52°F39°FOct '24Nov '24Dec '24Jan '25Feb '25Mar '25Apr '25May '25Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26
Average High
Average Low
About the Del Valle Regional Park climate charts

The temperature chart compares average monthly highs and lows at Del Valle Regional Park, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.

Precipitation shows the total recorded or modeled rainfall for each month at Del Valle Regional Park. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.

Hourly Temperature, Fog, Wind, Cloud Cover, and Solar Radiation Patterns

Average local hour by month from 2014-09-30 to 2026-04-30

How to read the temperature heatmap for Del Valle Regional Park

This heatmap shows how average temperature at Del Valle Regional Park changes by hour and month. Read left to right for the seasons and top to bottom for the time of day; warmer colors identify the usual afternoon peaks and cooler colors show overnight and winter lows.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

How to read the fog heatmap for Del Valle Regional Park

This heatmap shows when fog or low cloud is most likely at Del Valle Regional Park. Darker cells mark month-and-hour combinations with a stronger historical fog signal, which helps separate overnight or morning fog from cloud that tends to linger into the afternoon.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

How to read the wind heatmap for Del Valle Regional Park

This heatmap shows the typical hourly wind pattern at Del Valle Regional Park through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

How to read the cloud cover heatmap for Del Valle Regional Park

This heatmap shows average cloud cover at Del Valle Regional Park for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

How to read the solar radiation heatmap for Del Valle Regional Park

This heatmap shows the average solar radiation reaching Del Valle Regional Park by month and hour. Brighter cells indicate the strongest typical sun, while muted cells can reflect nighttime, shorter winter days, cloud cover, smoke, or terrain shading.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

Loading interactive climate heatmaps…

Location Details

📍
Coordinates
37.5836, -121.6886
⛰️
Elevation
800 ft
🏷️
Type
Park
🏷️
Tags
#sunny#hot#lake#camping
Map
Loading map...
Get Directions →

Frequently Asked Questions

Everything you need to know about weather and visiting Del Valle Regional Park

What is the weather at Del Valle Regional Park right now?

Current conditions at Del Valle Regional Park are 70°F, feeling like 70°F, with 58% humidity, winds near 4 mph, 100% cloud cover, and a 0% chance of precipitation. Warm and overcast

What temperatures are typical at Del Valle Regional Park?

The location-specific record for 1991-01-01 through 2020-12-31 shows an average daily high of 71°F and an average low of 49°F at Del Valle Regional Park. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Del Valle Regional Park get?

The location-specific climate baseline estimates about 15.1 inches of precipitation and 74 days with measurable rain in a typical year at Del Valle Regional Park. The monthly breakdown shows when that rain is most likely.

How often is Del Valle Regional Park foggy?

Del Valle Regional Park averages about 0.0 hours of morning fog per day across the location-specific climate baseline, with approximately 0 foggy days in a typical year. Fog varies considerably by season, so check the monthly breakdown and current forecast for visit planning.

What are the best months to visit Del Valle Regional Park for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are March 2026 (74°F/54°F average high/low and a 95 comfort score), April 2025 (69°F/49°F average high/low and a 90 comfort score), and May 2025 (76°F/53°F average high/low and a 90 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Del Valle Regional Park?

Del Valle Regional Park is a park at 800 feet. Livermore valley lake and camping. Notable features include sunny, hot, lake, and camping.

💡 Local Tip: San Francisco Bay Area weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Del Valle Regional Park.
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