When is the best time to go to Petaluma
The chart above shows the best time of year to visit Petaluma, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Petaluma
Petaluma weather by month
Please note our recommendations for when to visit Petaluma are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 12°C | 181mm | 6.2hrs | 10.8hrs |
The climate in Petaluma during January can be summarized as cool and wet.
Based on weather alone, this is probably a time of year to avoid going to Petaluma for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
January is in the winter in Petaluma and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 14°C (56°F), whilst at night 3°C (37°F) is normal.
On average January is the driest month of the year in Petaluma with around 181mm 7.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 15°C | 131mm | 7.8hrs | 11.7hrs |
February in Petaluma is generally wet with the temperature being mild.
Based on weather alone, this is probably a time of year to avoid going to Petaluma for your holidays. The weather is often not a good and not conducive to spending time outdoors.
February is in the winter in Petaluma and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 5°C (41°F) is normal.
On average February is the 2nd driest month of the year in Petaluma with around 131mm 5.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
Petaluma weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 15°C | 107mm | 9.2hrs | 12.8hrs |
The weather in March in Petaluma is characteristically mild and damp.
Based on weather alone, this is probably a time of year to avoid going to Petaluma for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in Petaluma and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 5°C (41°F) is normal.
On average March is the 3rd driest month of the year in Petaluma with around 107mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 50mm | 11.1hrs | 14.1hrs |
Petaluma's weather in April is typically mild and reasonably dry in nature.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Petaluma.
April is in the spring in Petaluma and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 19°C (67°F), whilst at night 6°C (42°F) is normal.
On average April is the 4th driest month of the year in Petaluma with around 50mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.1 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 20°C | 12mm | 11.8hrs | 15.2hrs |
May is a dry month in Petaluma and the temperature is generally mild.
It is perhaps the perfect month to visit Petaluma, with some extremely good weather at this time of year.
May is in the spring in Petaluma and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 8°C (46°F) is normal.
On average May is the 5th driest month of the year in Petaluma with around 12mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.8 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 6mm | 11.9hrs | 10.8hrs |
June in Petaluma is generally very dry with the temperature being mild.
It is perhaps the perfect month to visit Petaluma, with some particularly good weather at this time of year.
June is in the summer in Petaluma and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 10°C (49°F) is normal.
On average June is the 6th driest month of the year in Petaluma with around 6mm 0.2 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 11.9 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 2mm | 11.8hrs | 11.7hrs |
July in Petaluma is generally very dry with the temperature being warm.
It is perhaps the perfect month to visit Petaluma, with some surprisingly good weather at this time of year.
July is in the summer in Petaluma and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 10°C (51°F) is normal.
On average July is the 6th wettest month of the year in Petaluma with around 2mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 11.8 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 3mm | 10.8hrs | 12.8hrs |
The weather in August in Petaluma is characteristically warm and very dry.
It is perhaps the perfect month to visit Petaluma, with some extremely good weather at this time of year.
August is in the summer in Petaluma and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 11°C (51°F) is normal.
On average August is the 5th wettest month of the year in Petaluma with around 3mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10.8 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 9mm | 10.2hrs | 14.1hrs |
Petaluma's weather in September is typically warm and very dry in nature.
It is perhaps the perfect month to visit Petaluma, with some inordinately good weather at this time of year.
September is in the fall / autumn in Petaluma and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 10°C (51°F) is normal.
On average September is the 4th wettest month of the year in Petaluma with around 9mm 0.4 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10.2 hours of sunshine per day.
Petaluma weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 21°C | 46mm | 8.9hrs | 15.2hrs |
October is a reasonably dry month in Petaluma and the temperature is generally mild.
It is perhaps a good month to visit Petaluma, with some extremely good weather at this time of year.
October is in the fall / autumn in Petaluma and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 24°C (74°F), whilst at night 8°C (47°F) is normal.
On average October is the 3rd wettest month of the year in Petaluma with around 46mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.9 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 116mm | 6.4hrs | 10.8hrs |
Petaluma's weather in November is typically mild and damp in nature.
Based on weather alone, this is probably a time of year to avoid going to Petaluma for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
November is in the fall / autumn in Petaluma and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 5°C (42°F) is normal.
On average November is the 2nd wettest month of the year in Petaluma with around 116mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
Petaluma weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 12°C | 145mm | 5.6hrs | 11.7hrs |
December in Petaluma is generally wet with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Petaluma for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
December is in the winter in Petaluma and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 14°C (56°F), whilst at night 3°C (38°F) is normal.
On average December is the wettest month of the year in Petaluma with around 145mm 5.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.6 hours of sunshine per day.
Other monthly averages
Petaluma weather stats
| Hottest month: | August | 26.5°C 79.7°F |
|---|---|---|
| Driest month: | July | 2mm 0.1ins |
| Sunniest month: | April | 11.1hrs |
| Coldest month: | January | 13.2°C 55.8°F |
| Wettest month: | January | 181mm 7.1ins |
| Warmest sea: | September | 14.4°C 57.9°F |
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