Petaluma Weather in May
May in Petaluma averages 22°C (72°F) during the day and 8°C (46°F) at night. With only 15 mm (0.6 in) of rainfall expected on average, it's a largely dry month.
Rainfall in Petaluma in May
You can typically expect 3 days of rain this month, averaging around 15 mm (0.6 in). When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Petaluma in May
May tends to be one of the perfect months in Petaluma, with 22°C (72°F) in the afternoon and 8°C (46°F) overnight. This kind of day-to-night contrast is typical for this time of year. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Petaluma in May
Expect a lot of sunshine this month, with about 310 hours of sun. These sunny conditions add to the overall experience.If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Petaluma's climate page.
Petaluma Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
22°C (72°F)
Chance of Rain
10%
Precipitation
15 mm (0.6 in)
Rainy days
3 days
Sunshine
310 hours *
Percentage Sunshine
76% *
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
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tolerable
unpleasant
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What to Wear in Petaluma in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. With minimal rainfall expected, you can leave the rain gear at home. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Petaluma in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Petaluma's climate page.
See the full Petaluma climate overview or explore weather in the United States of America.
