May weather forecast
Atascadero, CA

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The Sunken Gardens Park overlooking the Atascadero City Hall in California
The Sunken Gardens Park overlooking the Atascadero City Hall in California

Weather in May

May, the last month of the spring in Atascadero, is a moderately hot month, with an average temperature ranging between max 73.9°F (23.3°C) and min 50.5°F (10.3°C).

Temperature

Atascadero's shift into May is marked by a subtle change to a moderately hot 73.9°F (23.3°C) from April's 69.6°F (20.9°C) in temperature. A notable decrease from the day's highest temperature marks May, culminating in an average low of 50.5°F (10.3°C).

Humidity

The average relative humidity in May is 59%.

Rainfall

In Atascadero, in May, during 3.2 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, there are 54.8 rainfall days, and 8.66" (220mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 14h and 3min.
On the first day of May, sunrise is at 6:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:12 pm PDT.

Sunshine

In Atascadero, the average sunshine in May is 11.3h.

UV index

In Atascadero, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Atascadero, records 73.9°F (23.3°C), while the low-temperature is 50.5°F (10.3°C).

What is the average humidity in May?

In May, the average relative humidity is 59%.

How much does it rain in May?

In Atascadero, during May, the rain falls for 3.2 days and regularly aggregates up to 0.24" (6mm) of precipitation.

What is the average length of the day in May?

The average day length in May is 14h and 3min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:12 pm PDT.

How long on average sun shines in May?

The average sunshine duration in May is 11.3h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Atascadero, CA

Average temperature in May - Atascadero, CA
  • Average high temperature in May: 73.9°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is December (58.5°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is December (42.8°F).

Average pressure in May
Atascadero, CA

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

Average wind speed in May
Atascadero, CA

Average wind speed in May - Atascadero, CA
  • Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are March and April (5.9mph).
The calmest months (with the lowest average wind speed) are August and September (4.5mph).

Average humidity in May
Atascadero, CA

Average humidity in May - Atascadero, CA
  • Average humidity in May: 59%

The months with the highest relative humidity are February and March (68%).
The month with the lowest relative humidity is September (50%).

Average rainfall in May
Atascadero, CA

Average rainfall in May - Atascadero, CA
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is March (1.73").
The driest months (with the least rainfall) are June and August (0.04").

Average rainfall days in May
Atascadero, CA

Average rainfall days in May - Atascadero, CA
  • Average rainfall days in May: 3.2 days

The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is June (0.8 days).

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

Average daylight in May / Average sunshine in May - Atascadero, CA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 11h and 2min

The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 18min).

Average sunshine days in May
Atascadero, CA

Average sunshine days in May - Atascadero, CA
  • Average sunshine days in May: 26.8 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is February (19.7 days).

Average UV index in May
Atascadero, CA

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

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).

Average cloud cover in May
Atascadero, CA

Average cloud cover in May - Atascadero, CA
  • Average cloud cover in May: 17

The month with the most cloud cover is March (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in May
Atascadero, CA

Average visibility in May - Atascadero, 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).

Atascadero, California, USA

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