May weather forecast
Vallecito, CA

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Weather in May

May, the last month of the spring in Vallecito, is a warm month, with an average temperature ranging between max 73.4°F (23°C) and min 49.6°F (9.8°C).

Temperature

May's onset is marked by a subtle temperature increase, moving from a comfortable 65.8°F (18.8°C) in April to a moderately hot 73.4°F (23°C). Vallecito sees a consistent average low-temperature of 49.6°F (9.8°C) in May, indicating a substantial decrease from the day's temperature.

Humidity

In Vallecito, the average relative humidity in May is 56%.

Rainfall

In Vallecito, in May, during 6.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 74.4 rainfall days, and 22.87" (581mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 15min.
On the first day of May in Vallecito, sunrise is at 6:04 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:18 pm PDT.

Sunshine

In Vallecito, California, the average sunshine in May is 11h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the temperature in May in Vallecito?

During May, Vallecito experiences an average high-temperature of 73.4°F (23°C) and a low-temperature of 49.6°F (9.8°C).

What is the average humidity in May in Vallecito?

In Vallecito, California, the average relative humidity in May is 56%.

How many days does it rain in May in Vallecito?

In Vallecito, during May, the rain falls for 6.3 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow in Vallecito?

April through October are months without snowfall in Vallecito.

What is the average length of the day in May in Vallecito?

In Vallecito, California, the average day length in May is 14h and 15min.

What time are sunrise and sunset in May in Vallecito?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 7:53 pm. On the last day of the month, in Vallecito, sunrise is at 5:40 am and sunset at 8:18 pm PDT.

How many hours of sunshine does Vallecito have in May?

In Vallecito, the average sunshine duration in May is 11h.

How high is the UV index in May in Vallecito?

In Vallecito, California, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Vallecito, CA

Average temperature in May - Vallecito, CA
  • Average high temperature in May: 73.4°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.2°F).

  • Average low temperature in May: 49.6°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).

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Average pressure in May
Vallecito, CA

Average pressure in May - Vallecito, CA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Vallecito, CA

Average wind speed in May - Vallecito, CA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

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Average humidity in May
Vallecito, CA

Average humidity in May - Vallecito, CA
  • Average humidity in May: 56%

The month with the highest relative humidity is March (71%).
The months with the lowest relative humidity are July and August (34%).

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Average rainfall in May
Vallecito, CA

Average rainfall in May - Vallecito, CA
  • Average rainfall in May: 1.38"

The wettest month (with the highest rainfall) is March (4.76").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in May
Vallecito, CA

Average rainfall days in May - Vallecito, CA
  • Average rainfall days in May: 6.3 days

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (1.2 days).

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Average snowfall in May
Vallecito, CA

Average snowfall in May - Vallecito, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Vallecito, CA

Average snowfall days in May - Vallecito, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Vallecito, CA

Average daylight in May / Average sunshine in May - Vallecito, CA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 11h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in May
Vallecito, CA

Average sunshine days in May - Vallecito, CA
  • Average sunshine days in May: 23.8 days

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in May
Vallecito, CA

Average UV index in May - Vallecito, CA
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is November (UV index 2).

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Average cloud cover in May
Vallecito, CA

Average cloud cover in May - Vallecito, CA
  • Average cloud cover in May: 20

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in May
Vallecito, CA

Average visibility in May - Vallecito, CA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Vallecito, California, USA

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