Fairfield Weather

Town • San Francisco Bay Area

Solano County city, very hot

59°
😊
Comfort Score
89(A-)
Excellent
Weather updated October 1, 2026 at 3:16 AM PDT

Fairfield weather at a glance

Fairfield is a town at 16 feet in San Francisco Bay Area. Solano County city, very hot. Notable features include sunny, hot, and urban.

Current conditions are 59°F, feeling like 57°F, with 72% humidity, winds near 5 mph, 0% cloud cover, and a 0% chance of precipitation. Cool with clear skies.

The location-specific climate baseline shows an average daily high of 74°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
    91°55°
    Comfort
    66
    0%
    Precip 0 in
  2. Fri
    Oct 2
    93°58°
    Comfort
    62
    0%
    Precip 0 in
  3. Sat
    Oct 3
    101°65°
    Comfort
    57
    0%
    Precip 0 in
  4. Sun
    Oct 4
    102°68°
    Comfort
    59
    0%
    Precip 0 in
  5. Mon
    Oct 5
    102°68°
    Comfort
    58
    0%
    Precip 0 in
  6. Tue
    Oct 6
    105°69°
    Comfort
    57
    0%
    Precip 0 in
  7. Wed
    Oct 7
    106°70°
    Comfort
    57
    0%
    Precip 0 in
  8. Thu
    Oct 8
    94°66°
    Comfort
    63
    0%
    Precip 0 in
  9. Best day
    Fri
    Oct 9
    89°57°
    Comfort
    71
    1%
    Precip 0 in
  10. Sat
    Oct 10
    97°58°
    Comfort
    58
    0%
    Precip 0 in

Hour by hour

Hourly Forecast

Drag or swipe to browse
  1. Today
    Now
    60°
    Comfort
    89
    0%
    0 in
  2. Today
    4 AM
    58°
    Comfort
    88
    0%
    0 in
  3. Today
    5 AM
    57°
    Comfort
    87
    0%
    0 in
  4. Today
    6 AM
    56°
    Comfort
    86
    0%
    0 in
  5. Today
    7 AM
    55°
    Comfort
    85
    0%
    0 in
  6. Sunrise7:04 AM
  7. Today
    8 AM
    58°
    Comfort
    88
    0%
    0 in
  8. Today
    9 AM
    66°
    Comfort
    96
    0%
    0 in
  9. Today
    10 AM
    74°
    Comfort
    100
    0%
    0 in
  10. Today
    11 AM
    80°
    Comfort
    97
    0%
    0 in
  11. Today
    12 PM
    84°
    Comfort
    87
    0%
    0 in
  12. Today
    1 PM
    88°
    Comfort
    78
    0%
    0 in
  13. Today
    2 PM
    90°
    Comfort
    72
    0%
    0 in
  14. Today
    3 PM
    91°
    Comfort
    75
    0%
    0 in
  15. Today
    4 PM
    91°
    Comfort
    83
    0%
    0 in
  16. Today
    5 PM
    88°
    Comfort
    89
    0%
    0 in
  17. Today
    6 PM
    83°
    Comfort
    96
    0%
    0 in
  18. Sunset6:50 PM
  19. Today
    7 PM
    76°
    Comfort
    97
    0%
    0 in
  20. Today
    8 PM
    70°
    Comfort
    95
    0%
    0 in
  21. Today
    9 PM
    68°
    Comfort
    94
    0%
    0 in
  22. Today
    10 PM
    67°
    Comfort
    93
    0%
    0 in
  23. Today
    11 PM
    65°
    Comfort
    90
    0%
    0 in
  24. Fri
    12 AM
    64°
    Comfort
    88
    0%
    0 in
  25. Fri
    1 AM
    63°
    Comfort
    89
    0%
    0 in
  26. Fri
    2 AM
    63°
    Comfort
    89
    0%
    0 in
  27. Fri
    3 AM
    62°
    Comfort
    88
    0%
    0 in
  28. Fri
    4 AM
    61°
    Comfort
    84
    0%
    0 in
  29. Fri
    5 AM
    60°
    Comfort
    89
    0%
    0 in
  30. Fri
    6 AM
    59°
    Comfort
    81
    0%
    0 in
  31. Fri
    7 AM
    58°
    Comfort
    85
    0%
    0 in
  32. Sunrise7:05 AM
  33. Fri
    8 AM
    61°
    Comfort
    87
    0%
    0 in
  34. Fri
    9 AM
    68°
    Comfort
    97
    0%
    0 in
  35. Fri
    10 AM
    75°
    Comfort
    95
    0%
    0 in
  36. Fri
    11 AM
    82°
    Comfort
    91
    0%
    0 in
  37. Fri
    12 PM
    86°
    Comfort
    84
    0%
    0 in
  38. Fri
    1 PM
    91°
    Comfort
    73
    0%
    0 in
  39. Fri
    2 PM
    93°
    Comfort
    71
    0%
    0 in
  40. Fri
    3 PM
    92°
    Comfort
    75
    0%
    0 in
  41. Fri
    4 PM
    90°
    Comfort
    80
    0%
    0 in
  42. Fri
    5 PM
    89°
    Comfort
    81
    0%
    0 in
  43. Fri
    6 PM
    82°
    Comfort
    91
    0%
    0 in
  44. Sunset6:49 PM
  45. Fri
    7 PM
    78°
    Comfort
    92
    0%
    0 in
  46. Fri
    8 PM
    74°
    Comfort
    95
    0%
    0 in
  47. Fri
    9 PM
    72°
    Comfort
    95
    0%
    0 in
  48. Fri
    10 PM
    71°
    Comfort
    96
    0%
    0 in
  49. Fri
    11 PM
    69°
    Comfort
    97
    0%
    0 in
  50. Sat
    12 AM
    68°
    Comfort
    96
    0%
    0 in
  51. Sat
    1 AM
    67°
    Comfort
    95
    0%
    0 in
  52. Sat
    2 AM
    67°
    Comfort
    95
    0%
    0 in

Current Conditions

Temperature
59°F
Feels like 57°F
Humidity
72%
Dew point 50°F
Wind
5 mph
NW • Gusts 12 mph
Cloud Cover
0%
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal77
Wind100
Stars Visible100
Moisture100
Precipitation100

Weather Maps

About the weather maps for Fairfield

Each preview is centered on Fairfield, 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 Fairfield. 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
91°Fforecast
13° above normal
Normal: 78°F
Rainfall Year-to-Date
9.8"
27% below average
30-yr avg: 13.5"
Sunny Days
27last 28 days
1 fewer than baseline
Recent baseline: 28
Foggy Days
0last 28 days
About average
Avg Wind Speed
11.2 mphlast 28 days
Typical conditions
Recent baseline: 10.3 mph
Comfort Score
9328-day avg
3 pts above typical
Recent baseline: 90
What the Fairfield climate comparisons mean

These cards compare recent conditions at Fairfield 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 Fairfield 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

86
Avg Comfort
74°
Avg High
48.9°
Avg Low
77%
Perfect Days
☀️ Avg Sunshine (recent)9.1h/day
🌫️ Avg Fog (recent)1h/day
💧 Avg Annual Rain15.1"
🌧️ Rainy Days/yr80 (22%)
🌫️ Foggy Days/yr (recent)45
✨ Perfect Days (80+)519

🌟 Best Months to Visit

1. May82
78.3° / 51.7° · ☀️ 12h
1 foggy days · 6 rainy days
2. June79
85.6° / 56° · ☀️ 12.8h
0 foggy days · 5 rainy days
3. April77
71.8° / 47.1° · ☀️ 9.8h
1 foggy days · 6 rainy days

⚠️ Challenging Months

1. December26
57° / 39.4° · ☀️ 3.9h
💧 3.1" · 10 rainy days · 19 foggy days
2. January34
56.9° / 39.6° · ☀️ 6.7h
💧 3.1" · 10 rainy days · 9 foggy days
3. February52
62° / 42.3° · ☀️ 6.8h
💧 2.8" · 9 rainy days · 5 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
October 20249765.3° / 48.8°9h0d0.04"2
November 20248063° / 44.7°6.3h3d4.77"18
December 20246958.1° / 43.4°4.6h14d4.54"11
January 20258360.1° / 39.6°7.3h4d0.16"25
February 20257961.8° / 43.8°6.8h4d6.3"18
March 20258663.5° / 45.3°8.3h1d1.28"22
April 20259470.3° / 49.1°10.2h0d0.17"28
May 20259478.5° / 54.3°12.4h1d0.19"31
June 20259480.5° / 54.8°12.7h0d0"30
July 20259381.2° / 56.7°12.4h1d0"31
August 20259087.8° / 59.6°11.6h0d0"28
September 20259083.2° / 61.4°9.8h0d0.3"26
October 20258974.2° / 53.8°7.8h1d1.58"26
November 20257863.5° / 49.5°6.2h10d2.59"16
December 20255752.5° / 44.1°3.2h23d3.45"2
January 20267258.2° / 41.9°6.1h13d3.19"13
February 20268064.1° / 45.4°6.7h5d2.97"19
March 20269478.3° / 52.4°9.7h0d0"31
April 20268970° / 50.6°9.4h2d2.74"24
May 20269276.2° / 54.7°11.6h0d0.94"30
June 20269482.6° / 57.7°12.9h0d0"29
July 20269285.7° / 59.2°11.9h0d0"29
August 20269285.7° / 58.9°11.1h0d0"30
Last updated: 9/2/2026

Climate Trends

Average Temperature by Month

93°F78°F64°F49°F35°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 Fairfield climate charts

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

This heatmap shows how average temperature at Fairfield 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 Fairfield

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

This heatmap shows the typical hourly wind pattern at Fairfield 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 Fairfield

This heatmap shows average cloud cover at Fairfield 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 Fairfield

This heatmap shows the average solar radiation reaching Fairfield 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
38.2494, -122.0399
⛰️
Elevation
16 ft
🏷️
Type
Town
🏷️
Tags
#sunny#hot#urban
Map
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Frequently Asked Questions

Everything you need to know about weather and visiting Fairfield

What is the weather at Fairfield right now?

Current conditions at Fairfield are 59°F, feeling like 57°F, with 72% humidity, winds near 5 mph, 0% cloud cover, and a 0% chance of precipitation. Cool with clear skies

What temperatures are typical at Fairfield?

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 49°F at Fairfield. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Fairfield get?

The location-specific climate baseline estimates about 15.1 inches of precipitation and 80 days with measurable rain in a typical year at Fairfield. The monthly breakdown shows when that rain is most likely.

How often is Fairfield foggy?

Fairfield 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 Fairfield for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are October 2024 (65°F/49°F average high/low and a 97 comfort score), April 2025 (70°F/49°F average high/low and a 94 comfort score), and May 2025 (79°F/54°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 Fairfield?

Fairfield is a town at 16 feet. Solano County city, very hot. Notable features include sunny, hot, and urban.

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