Best Time To Visit Sonoma - Time To Go To Sonoma

Sonoma has Mediterranean climate – The summers here are hot and dry while winters are cool and wet. The sun shines all year long in the valley. While the days may vary, the nights are always cool.

  • Spring (March to May): Around this time, days start getting warmer in Sonoma Valley. Average temperature ranges from 20 to 25-degrees Celsius. The valley experiences occasional rainfall, but it starts receding from March.
  • Summer (June to August): Summers are hot and dry in Sonoma Valley and day temperatures reach 37-degrees Celsius. This is the peak tourist season. Expect crowds!
  • Autumn (September to November): This season is quite warm in the valley and you can expect temperatures around 32 to 35-degrees Celsius. Crowds start vanishing around this time and you can take solitary tours around the town. It may rain occasionally.
  • Winter (December to February): Winter brings a crisp coolness to Sonoma Valley. The days become cooler as the mercury drops to around 15-degrees Celsius. Be prepared for rains. It almost never snows in the valley but the nights can be quite cold. Overall, it is the ideal weather to spend days out on the vineyards.

Climate in Sonoma

Know weather for your travel dates:

18-Sep-2018
Today 18 Sep

86

55

Clear throughout the day.

Wind:1.37 m/s

Humidity:55%

Precipitation:0.01%

  • Wed 19 Sep
    93 | 56

    Clear throughout the day.

  • Thu 20 Sep
    90 | 50

    Clear throughout the day.

  • Fri 21 Sep
    88 | 54

    Partly cloudy until evening.

  • Sat 22 Sep
    86 | 53

    Partly cloudy in the morning.

  • Sun 23 Sep
    90 | 50

    Clear throughout the day.

  • Mon 24 Sep
    93 | 52

    Clear throughout the day.

Month wise Weather in Sonoma

Average Temperature in Sonoma by month

  • 80℉
  • 60℉
  • 40℉
  • 20℉ 0℉
Jan

Average temperature: 48℉

Minimum temperature: 32℉

Maximum temperature: 61℉

Feb

Average temperature: 52℉

Minimum temperature: 36℉

Maximum temperature: 64℉

Mar

Average temperature: 55℉

Minimum temperature: 39℉

Maximum temperature: 73℉

Apr

Average temperature: 57℉

Minimum temperature: 41℉

Maximum temperature: 73℉

May

Average temperature: 61℉

Minimum temperature: 46℉

Maximum temperature: 82℉

Jun

Average temperature: 65℉

Minimum temperature: 50℉

Maximum temperature: 90℉

Jul

Average temperature: 66℉

Minimum temperature: 54℉

Maximum temperature: 86℉

Aug

Average temperature: 67℉

Minimum temperature: 54℉

Maximum temperature: 86℉

Sep

Average temperature: 69℉

Minimum temperature: 50℉

Maximum temperature: 99℉

Oct

Average temperature: 63℉

Minimum temperature: 46℉

Maximum temperature: 86℉

Nov

Average temperature: 56℉

Minimum temperature: 36℉

Maximum temperature: 66℉

Dec

Average temperature: 48℉

Minimum temperature: 32℉

Maximum temperature: 61℉

Highest temperature in Sonoma is recorded as 98.6℉ in September.

Lowest temperature in Sonoma is recorded as 32℉ in January and December.

Average Rain in Sonoma by Month (in mm)

  • 240
  • 180
  • 120
  • 60 0
Jan

Average Rain: 223.17 mm

Minimum Rain: 0 mm

Maximum Rain: 1133.43 mm

Feb

Average Rain: 173.97 mm

Minimum Rain: 0 mm

Maximum Rain: 789.68 mm

Mar

Average Rain: 54.1 mm

Minimum Rain: 0 mm

Maximum Rain: 366.98 mm

Apr

Average Rain: 58.27 mm

Minimum Rain: 0 mm

Maximum Rain: 563.64 mm

May

Average Rain: 0.8 mm

Minimum Rain: 0 mm

Maximum Rain: 9.27 mm

Jun

Average Rain: 5.01 mm

Minimum Rain: 0 mm

Maximum Rain: 88.27 mm

Jul

Average Rain: 0.4 mm

Minimum Rain: 0 mm

Maximum Rain: 12.37 mm

Aug

Average Rain: 0.05 mm

Minimum Rain: 0 mm

Maximum Rain: 1.52 mm

Sep

Average Rain: 0.83 mm

Minimum Rain: 0 mm

Maximum Rain: 10.85 mm

Oct

Average Rain: 8.04 mm

Minimum Rain: 0 mm

Maximum Rain: 143.99 mm

Nov

Average Rain: 51.61 mm

Minimum Rain: 0 mm

Maximum Rain: 569.79 mm

Dec

Average Rain: 53.14 mm

Minimum Rain: 0 mm

Maximum Rain: 727.74 mm

Maximum rain recorded in Sonoma is 1133.43 mm in January.

Months with no rains or lowest rains in Sonoma is August.

Average Humidity in Sonoma by Month (in %)

  • 100
  • 75
  • 50
  • 25 0
Jan

Average Humidity: 84%

Minimum Humidity: 69%

Maximum Humidity: 94%

Feb

Average Humidity: 82%

Minimum Humidity: 66%

Maximum Humidity: 94%

Mar

Average Humidity: 76%

Minimum Humidity: 57%

Maximum Humidity: 86%

Apr

Average Humidity: 69%

Minimum Humidity: 39%

Maximum Humidity: 90%

May

Average Humidity: 66%

Minimum Humidity: 50%

Maximum Humidity: 77%

Jun

Average Humidity: 62%

Minimum Humidity: 45%

Maximum Humidity: 77%

Jul

Average Humidity: 61%

Minimum Humidity: 42%

Maximum Humidity: 73%

Aug

Average Humidity: 68%

Minimum Humidity: 51%

Maximum Humidity: 77%

Sep

Average Humidity: 59%

Minimum Humidity: 36%

Maximum Humidity: 78%

Oct

Average Humidity: 56%

Minimum Humidity: 22%

Maximum Humidity: 85%

Nov

Average Humidity: 81%

Minimum Humidity: 69%

Maximum Humidity: 95%

Dec

Average Humidity: 79%

Minimum Humidity: 39%

Maximum Humidity: 95%

Most humid month in Sonoma is January.

Least humid month in Sonoma is October.

Best time to visit Sonoma Attractions in September