Del Valle Regional Park Weather

Park • San Francisco Bay Area

Livermore valley lake and camping

71°
😎
Comfort Score
99(A)
Perfect
Weather updated October 1, 2026 at 12:02 AM 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 71°F, feeling like 68°F, with 34% humidity, winds near 2 mph, 0% cloud cover, and a 0% chance of precipitation. Warm with clear skies.

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.

Plan your week

10-Day Forecast

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  1. Today
    Oct 1
    93°68°
    Comfort
    66
    0%
    Precip 0 in
  2. Fri
    Oct 2
    92°68°
    Comfort
    66
    0%
    Precip 0 in
  3. Sat
    Oct 3
    97°69°
    Comfort
    61
    0%
    Precip 0 in
  4. Sun
    Oct 4
    97°72°
    Comfort
    62
    1%
    Precip 0 in
  5. Mon
    Oct 5
    98°71°
    Comfort
    60
    0%
    Precip 0 in
  6. Tue
    Oct 6
    99°73°
    Comfort
    59
    0%
    Precip 0 in
  7. Wed
    Oct 7
    100°74°
    Comfort
    59
    1%
    Precip 0 in
  8. Thu
    Oct 8
    93°70°
    Comfort
    66
    1%
    Precip 0 in
  9. Best day
    Fri
    Oct 9
    89°64°
    Comfort
    74
    0%
    Precip 0 in
  10. Sat
    Oct 10
    91°59°
    Comfort
    67
    2%
    Precip 0 in

Hour by hour

Hourly Forecast

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  1. Today
    Now
    71°
    Comfort
    99
    0%
    0 in
  2. Today
    1 AM
    70°
    Comfort
    98
    0%
    0 in
  3. Today
    2 AM
    68°
    Comfort
    97
    0%
    0 in
  4. Today
    3 AM
    69°
    Comfort
    97
    0%
    0 in
  5. Today
    4 AM
    68°
    Comfort
    97
    0%
    0 in
  6. Today
    5 AM
    68°
    Comfort
    97
    0%
    0 in
  7. Today
    6 AM
    71°
    Comfort
    98
    0%
    0 in
  8. Today
    7 AM
    71°
    Comfort
    97
    0%
    0 in
  9. Sunrise7:02 AM
  10. Today
    8 AM
    68°
    Comfort
    95
    0%
    0 in
  11. Today
    9 AM
    73°
    Comfort
    99
    0%
    0 in
  12. Today
    10 AM
    79°
    Comfort
    100
    0%
    0 in
  13. Today
    11 AM
    84°
    Comfort
    94
    0%
    0 in
  14. Today
    12 PM
    88°
    Comfort
    87
    0%
    0 in
  15. Today
    1 PM
    90°
    Comfort
    78
    0%
    0 in
  16. Today
    2 PM
    92°
    Comfort
    75
    0%
    0 in
  17. Today
    3 PM
    93°
    Comfort
    75
    0%
    0 in
  18. Today
    4 PM
    93°
    Comfort
    80
    0%
    0 in
  19. Today
    5 PM
    90°
    Comfort
    85
    0%
    0 in
  20. Today
    6 PM
    86°
    Comfort
    90
    0%
    0 in
  21. Sunset6:49 PM
  22. Today
    7 PM
    80°
    Comfort
    96
    0%
    0 in
  23. Today
    8 PM
    76°
    Comfort
    98
    0%
    0 in
  24. Today
    9 PM
    73°
    Comfort
    98
    0%
    0 in
  25. Today
    10 PM
    71°
    Comfort
    97
    0%
    0 in
  26. Today
    11 PM
    70°
    Comfort
    96
    0%
    0 in
  27. Fri
    12 AM
    69°
    Comfort
    97
    0%
    0 in
  28. Fri
    1 AM
    69°
    Comfort
    93
    0%
    0 in
  29. Fri
    2 AM
    71°
    Comfort
    96
    0%
    0 in
  30. Fri
    3 AM
    69°
    Comfort
    90
    0%
    0 in
  31. Fri
    4 AM
    69°
    Comfort
    90
    0%
    0 in
  32. Fri
    5 AM
    72°
    Comfort
    91
    0%
    0 in
  33. Fri
    6 AM
    74°
    Comfort
    92
    0%
    0 in
  34. Fri
    7 AM
    68°
    Comfort
    90
    0%
    0 in
  35. Sunrise7:03 AM
  36. Fri
    8 AM
    73°
    Comfort
    92
    0%
    0 in
  37. Fri
    9 AM
    72°
    Comfort
    98
    0%
    0 in
  38. Fri
    10 AM
    79°
    Comfort
    98
    0%
    0 in
  39. Fri
    11 AM
    85°
    Comfort
    93
    0%
    0 in
  40. Fri
    12 PM
    89°
    Comfort
    81
    0%
    0 in
  41. Fri
    1 PM
    91°
    Comfort
    77
    0%
    0 in
  42. Fri
    2 PM
    91°
    Comfort
    76
    0%
    0 in
  43. Fri
    3 PM
    92°
    Comfort
    77
    0%
    0 in
  44. Fri
    4 PM
    91°
    Comfort
    78
    0%
    0 in
  45. Fri
    5 PM
    90°
    Comfort
    81
    0%
    0 in
  46. Fri
    6 PM
    86°
    Comfort
    87
    0%
    0 in
  47. Sunset6:47 PM
  48. Fri
    7 PM
    79°
    Comfort
    97
    0%
    0 in
  49. Fri
    8 PM
    75°
    Comfort
    98
    0%
    0 in
  50. Fri
    9 PM
    73°
    Comfort
    98
    0%
    0 in
  51. Fri
    10 PM
    73°
    Comfort
    98
    0%
    0 in
  52. Fri
    11 PM
    72°
    Comfort
    99
    0%
    0 in

Current Conditions

Temperature
71°F
Feels like 68°F
Humidity
34%
Dew point 41°F
Wind
2 mph
NW • Gusts 2 mph
Cloud Cover
0%
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal98
Wind98
Stars Visible100
Moisture99
Precipitation100

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.

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
93°Fforecast
18° above normal
Normal: 75°F
Rainfall Year-to-Date
8.2"
22% below average
30-yr avg: 10.5"
Sunny Days
27last 28 days
1 fewer than baseline
Recent baseline: 28
Foggy Days
3last 28 days
vs 4 recent baseline
Clearer than usual
Avg Wind Speed
10.8 mphlast 28 days
Typical conditions
Recent baseline: 9.9 mph
Comfort Score
9228-day avg
On par with typical
Recent baseline: 90
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

88
Avg Comfort
71.2°
Avg High
48.6°
Avg Low
82%
Perfect Days
☀️ Avg Sunshine (recent)9.3h/day
🌫️ Avg Fog (recent)0.9h/day
💧 Avg Annual Rain15.1"
🌧️ Rainy Days/yr74 (20%)
🌫️ Foggy Days/yr (recent)34
✨ Perfect Days (80+)551

🌟 Best Months to Visit

1. June81
82.3° / 55.2° · ☀️ 12.5h
1 foggy days · 5 rainy days
2. May80
74.2° / 50.4° · ☀️ 11.9h
3 foggy days · 5 rainy days
3. April77
67.3° / 45.7° · ☀️ 9.7h
1 foggy days · 6 rainy days

⚠️ Challenging Months

1. December33
55.3° / 38.6° · ☀️ 5.4h
💧 3.1" · 8 rainy days · 9 foggy days
2. January51
55.8° / 38.8° · ☀️ 7h
💧 3.1" · 8 rainy days · 2 foggy days
3. February53
58.3° / 40.6° · ☀️ 6.8h
💧 2.8" · 8 rainy days · 3 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
October 20249462.9° / 47.1°8.5h0d0"2
November 20248361.5° / 47.6°6.5h0d1.46"21
December 20247559.9° / 47.1°5.1h4d3.09"13
January 20258358.1° / 43.2°7.2h2d0.16"24
February 20258059.8° / 46.4°6.9h1d3.76"17
March 20258359.8° / 45.5°8.4h0d2.57"20
April 20259266.3° / 47.6°10h1d0.47"27
May 20259474.6° / 51.4°12.3h1d0.05"30
June 20259679.6° / 53.1°12.7h1d0"30
July 20259380.9° / 55°12.3h5d0"31
August 20259185.6° / 59.6°11.4h4d0"31
September 20259281° / 60.5°10h3d0.12"29
October 20259071.4° / 54.3°8.1h4d2.19"28
November 20258164.1° / 50°6.5h8d2.54"19
December 20257657.9° / 44.6°5.7h13d1.6"10
January 20268259.6° / 47.7°6.9h1d1.89"22
February 20268161.8° / 48.5°6.8h5d3.7"19
March 20269674° / 56.1°9.9h1d0"30
April 20268966.3° / 49.3°9.5h0d2.38"26
May 20269273.4° / 52.1°11.5h4d0.19"30
June 20269380.7° / 55.2°12.3h1d0"30
July 20269283.7° / 57.8°12.2h1d0.04"31
August 20269185.5° / 58°11.3h3d0"31
Last updated: 9/2/2026

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 '26Aug '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 71°F, feeling like 68°F, with 34% humidity, winds near 2 mph, 0% cloud cover, and a 0% chance of precipitation. Warm with clear skies

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 June 2025 (80°F/53°F average high/low and a 96 comfort score), March 2026 (74°F/56°F average high/low and a 96 comfort score), and October 2024 (63°F/47°F average high/low and a 94 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.