Brentwood Weather

TownSan Francisco Bay Area

Eastern suburbs, very hot and dry

84°
😎
Comfort Score
96(A)
Perfect
Weather updated September 12, 2026 at 3:26 PM PDT

Brentwood weather at a glance

Brentwood is a town at 85 feet in San Francisco Bay Area. Eastern suburbs, very hot and dry. Notable features include sunny, hot, and agricultural.

Current conditions are 84°F, feeling like 78°F, with 26% humidity, winds near 15 mph, 0% cloud cover, and a 0% chance of precipitation. Hot and breezy with clear skies.

The location-specific climate baseline shows an average daily high of 74°F and an average low of 50°F, with about 0.0 hours of sunshine per day and 0.0 hours of morning fog per day. Expected annual precipitation is approximately 12.1 inches.

Plan your week

10-Day Forecast

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  1. Today
    Sep 12
    88°62°
    Comfort
    77
    0%
    Precip 0 in
  2. Best day
    Sun
    Sep 13
    80°55°
    Comfort
    92
    0%
    Precip 0 in
  3. Mon
    Sep 14
    91°58°
    Comfort
    66
    0%
    Precip 0 in
  4. Tue
    Sep 15
    94°57°
    Comfort
    60
    0%
    Precip 0 in
  5. Wed
    Sep 16
    94°59°
    Comfort
    61
    0%
    Precip 0 in
  6. Thu
    Sep 17
    97°62°
    Comfort
    59
    0%
    Precip 0 in
  7. Fri
    Sep 18
    99°63°
    Comfort
    58
    1%
    Precip 0 in
  8. Sat
    Sep 19
    99°59°
    Comfort
    57
    1%
    Precip 0 in
  9. Sun
    Sep 20
    97°59°
    Comfort
    59
    2%
    Precip 0 in
  10. Mon
    Sep 21
    88°61°
    Comfort
    73
    3%
    Precip 0 in

Hour by hour

Hourly Forecast

Drag or swipe to browse
  1. Today
    Now
    84°
    Comfort
    95
    0%
    0 in
  2. Today
    4 PM
    83°
    Comfort
    98
    0%
    0 in
  3. Today
    5 PM
    80°
    Comfort
    98
    0%
    0 in
  4. Today
    6 PM
    76°
    Comfort
    98
    0%
    0 in
  5. Today
    7 PM
    72°
    Comfort
    98
    0%
    0 in
  6. Sunset7:18 PM
  7. Today
    8 PM
    69°
    Comfort
    98
    0%
    0 in
  8. Today
    9 PM
    67°
    Comfort
    95
    0%
    0 in
  9. Today
    10 PM
    65°
    Comfort
    91
    0%
    0 in
  10. Today
    11 PM
    64°
    Comfort
    92
    0%
    0 in
  11. Sun
    12 AM
    63°
    Comfort
    92
    0%
    0 in
  12. Sun
    1 AM
    61°
    Comfort
    90
    0%
    0 in
  13. Sun
    2 AM
    60°
    Comfort
    89
    0%
    0 in
  14. Sun
    3 AM
    58°
    Comfort
    86
    0%
    0 in
  15. Sun
    4 AM
    57°
    Comfort
    85
    0%
    0 in
  16. Sun
    5 AM
    56°
    Comfort
    83
    0%
    0 in
  17. Sun
    6 AM
    55°
    Comfort
    82
    0%
    0 in
  18. Sunrise6:47 AM
  19. Sun
    7 AM
    55°
    Comfort
    83
    0%
    0 in
  20. Sun
    8 AM
    61°
    Comfort
    86
    0%
    0 in
  21. Sun
    9 AM
    65°
    Comfort
    89
    0%
    0 in
  22. Sun
    10 AM
    69°
    Comfort
    93
    0%
    0 in
  23. Sun
    11 AM
    72°
    Comfort
    97
    0%
    0 in
  24. Sun
    12 PM
    74°
    Comfort
    99
    0%
    0 in
  25. Sun
    1 PM
    76°
    Comfort
    99
    0%
    0 in
  26. Sun
    2 PM
    78°
    Comfort
    99
    0%
    0 in
  27. Sun
    3 PM
    79°
    Comfort
    99
    0%
    0 in
  28. Sun
    4 PM
    80°
    Comfort
    99
    0%
    0 in
  29. Sun
    5 PM
    79°
    Comfort
    98
    0%
    0 in
  30. Sun
    6 PM
    77°
    Comfort
    98
    0%
    0 in
  31. Sun
    7 PM
    73°
    Comfort
    97
    0%
    0 in
  32. Sunset7:17 PM
  33. Sun
    8 PM
    69°
    Comfort
    95
    0%
    0 in
  34. Sun
    9 PM
    67°
    Comfort
    95
    0%
    0 in
  35. Sun
    10 PM
    65°
    Comfort
    94
    0%
    0 in
  36. Sun
    11 PM
    63°
    Comfort
    91
    0%
    0 in
  37. Mon
    12 AM
    63°
    Comfort
    91
    0%
    0 in
  38. Mon
    1 AM
    63°
    Comfort
    90
    0%
    0 in
  39. Mon
    2 AM
    61°
    Comfort
    89
    0%
    0 in
  40. Mon
    3 AM
    61°
    Comfort
    88
    0%
    0 in
  41. Mon
    4 AM
    61°
    Comfort
    87
    0%
    0 in
  42. Mon
    5 AM
    59°
    Comfort
    86
    0%
    0 in
  43. Mon
    6 AM
    59°
    Comfort
    86
    0%
    0 in
  44. Sunrise6:47 AM
  45. Mon
    7 AM
    58°
    Comfort
    86
    0%
    0 in
  46. Mon
    8 AM
    62°
    Comfort
    90
    0%
    0 in
  47. Mon
    9 AM
    71°
    Comfort
    97
    0%
    0 in
  48. Mon
    10 AM
    75°
    Comfort
    98
    0%
    0 in
  49. Mon
    11 AM
    79°
    Comfort
    99
    0%
    0 in
  50. Mon
    12 PM
    83°
    Comfort
    97
    0%
    0 in
  51. Mon
    1 PM
    87°
    Comfort
    92
    0%
    0 in
  52. Mon
    2 PM
    90°
    Comfort
    88
    0%
    0 in

Current Conditions

Temperature
84°F
Feels like 78°F
Humidity
26%
Dew point 45°F
Wind
15 mph
NW • Gusts 20 mph
Cloud Cover
0%
bright
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal96
Wind82
Sky Comfort97
Moisture100
Precipitation100

Weather Maps

About the weather maps for Brentwood

Each preview is centered on Brentwood, 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 Brentwood. 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
88°Fforecast
1° above normal
Normal: 87°F
Rainfall Year-to-Date
10.9"
17% above average
30-yr avg: 9.3"
Sunny Days
23last 28 days
3 fewer than baseline
Recent baseline: 26
Foggy Days
3last 28 days
vs 2 recent baseline
Foggier than usual
Avg Wind Speed
5.5 mphlast 28 days
1.4 mph calmer than baseline
Recent baseline: 6.9 mph
Comfort Score
9128-day avg
On par with typical
Recent baseline: 93
What the Brentwood climate comparisons mean

These cards compare recent conditions at Brentwood 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 Brentwood 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

84
Avg Comfort
74.3°
Avg High
49.7°
Avg Low
71%
Perfect Days
☀️ Avg Sunshine (recent)9.5h/day
🌫️ Avg Fog (recent)1.1h/day
💧 Avg Annual Rain12.1"
🌧️ Rainy Days/yr71 (19%)
🌫️ Foggy Days/yr (recent)52
✨ Perfect Days (80+)461

🌟 Best Months to Visit

1. May85
79.1° / 52.4° · ☀️ 12.5h
1 foggy days · 5 rainy days
2. June80
86.1° / 57.1° · ☀️ 13.7h
0 foggy days · 5 rainy days
3. March76
67.1° / 45.2° · ☀️ 10.1h
1 foggy days · 7 rainy days

⚠️ Challenging Months

1. December33
56.7° / 39.3° · ☀️ 5.3h
💧 3.1" · 8 rainy days · 19 foggy days
2. January39
56.4° / 39.7° · ☀️ 7.2h
💧 3.1" · 8 rainy days · 9 foggy days
3. February52
62° / 42.7° · ☀️ 6.8h
💧 2.8" · 7 rainy days · 7 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
August 20248293.3° / 59.9°12.2h0d0.03"19
September 20248591.1° / 58.6°11h0d0.14"23
October 20248584.5° / 57.2°9.9h0d0.72"22
November 20248263° / 45.5°7.1h2d4.27"22
December 20247257.8° / 43.2°5.8h16d3.93"12
January 20258358.5° / 39.4°7.8h4d1.04"24
February 20257860.7° / 43.6°6.9h4d4.86"17
March 20258562.9° / 44.6°9.3h2d2.38"25
April 20259472.5° / 48.1°11h3d0.36"28
May 20259182° / 53.3°13h0d0.14"30
June 20259287.1° / 55.5°13.7h0d0"30
July 20259089.2° / 58.4°13.3h0d0.02"29
August 20258493.8° / 60.6°12.4h0d0"24
September 20258988° / 61.6°10.7h0d0.18"28
October 20259173.6° / 54.1°8.6h3d2.11"25
November 20257762.9° / 49.1°6.1h11d3.57"15
December 20256453.9° / 42.8°4.8h21d4.23"3
January 20267256.6° / 42°6.5h13d2.6"10
February 20267761.8° / 44.8°6.8h10d4.44"13
March 20269576.1° / 51.7°10.9h0d0.76"30
April 20268970.8° / 49.6°10.9h2d3.02"23
May 20269376.8° / 52.9°11h1d0.06"9
Last updated: 5/10/2026

Climate Trends

Average Temperature by Month

99°F83°F67°F50°F34°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 Brentwood climate charts

The temperature chart compares average monthly highs and lows at Brentwood, 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 Brentwood. 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 Brentwood

This heatmap shows how average temperature at Brentwood 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 Brentwood

This heatmap shows when fog or low cloud is most likely at Brentwood. 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 Brentwood

This heatmap shows the typical hourly wind pattern at Brentwood 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 Brentwood

This heatmap shows average cloud cover at Brentwood 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 Brentwood

This heatmap shows the average solar radiation reaching Brentwood 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
37.9318, -121.6958
⛰️
Elevation
85 ft
🏷️
Type
Town
🏷️
Tags
#sunny#hot#agricultural
Map
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Frequently Asked Questions

Everything you need to know about weather and visiting Brentwood

What is the weather at Brentwood right now?

Current conditions at Brentwood are 84°F, feeling like 78°F, with 26% humidity, winds near 15 mph, 0% cloud cover, and a 0% chance of precipitation. Hot and breezy with clear skies

What temperatures are typical at Brentwood?

The location-specific record for 1991-01-01 through 2020-12-31 shows an average daily high of 74°F and an average low of 50°F at Brentwood. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Brentwood get?

The location-specific climate baseline estimates about 12.1 inches of precipitation and 71 days with measurable rain in a typical year at Brentwood. The monthly breakdown shows when that rain is most likely.

How often is Brentwood foggy?

Brentwood 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 Brentwood for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are March 2026 (76°F/52°F average high/low and a 95 comfort score), April 2025 (73°F/48°F average high/low and a 94 comfort score), and May 2026 (77°F/53°F average high/low and a 93 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Brentwood?

Brentwood is a town at 85 feet. Eastern suburbs, very hot and dry. Notable features include sunny, hot, and agricultural.

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