June 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 June

June, the first month of the summer in Atascadero, is still a warm month, with an average temperature ranging between min 55.2°F (12.9°C) and max 80.8°F (27.1°C).

Temperature

The onset of June marks a slight increase in the average high-temperature, moving from a moderately hot 73.9°F (23.3°C) in May to a still warm 80.8°F (27.1°C). Despite soaring daytime temperatures, Atascadero registers a consistent average low-temperature of 55.2°F (12.9°C) in June.

Heat index

For June, the heat index is evaluated at 82.4°F (28°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Consider that heat index readings are for situations in the shade and light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In June, the average relative humidity is 53%.

Rainfall

June and August are months with the least rain when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

With an average of 14h and 30min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:48 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:22 pm PDT.

Sunshine

June and July, with an average of 12h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in June interprets into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in June?

The high-temperature, in June, in Atascadero, records 80.8°F (27.1°C), while the low-temperature is 55.2°F (12.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in June is evaluated at 82.4°F (28°C).

What is the average humidity in June?

In Atascadero, the average relative humidity in June is 53%.

What is the driest month?

June and August are months with the least rain when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain.

How many days does it rain in June?

In June, the rain falls for 0.8 days. Throughout June, 0.04" (1mm) of precipitation is accumulated.

When are the longest days?

The month with the longest days is June, with an average of 14h and 30min of daylight.

What is the average length of the day in June in Atascadero?

In Atascadero, the average day length in June is 14h and 31min.

What time are sunrise and sunset in June in Atascadero?

In June, on the first day of the month, sunrise is at 5:48 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:22 pm PDT.

What is the month with the most sunshine?

The months with the most sunshine in Atascadero, California, are June and July, with an average of 12h of sunshine.

How long on average sun shines in June?

In June, the average sunshine duration in Atascadero, California, is 12h.

When is the highest UV index?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in June?

The average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Atascadero, CA

Average temperature in June - Atascadero, CA
  • Average high temperature in June: 80.8°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 June: 55.2°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 June
Atascadero, CA

Average pressure in June - Atascadero, CA
  • Average pressure in June: 29.91"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 June
Atascadero, CA

Average wind speed in June - Atascadero, CA
  • Average wind speed in June: 5.4mph

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 June
Atascadero, CA

Average humidity in June - Atascadero, CA
  • Average humidity in June: 53%

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 June
Atascadero, CA

Average rainfall in June - Atascadero, CA
  • Average rainfall in June: 0.04"

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 June
Atascadero, CA

Average rainfall days in June - Atascadero, CA
  • Average rainfall days in June: 0.8 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 June /
Average sunshine in June
Atascadero, CA

Average daylight in June / Average sunshine in June - Atascadero, CA
  • Average daylight in June: 14h and 3min

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 June: 12h and 0min

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 June
Atascadero, CA

Average sunshine days in June - Atascadero, CA
  • Average sunshine days in June: 28.9 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 June
Atascadero, CA

Average UV index in June - Atascadero, CA
  • Average UV index in June: 6

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 June
Atascadero, CA

Average cloud cover in June - Atascadero, CA
  • Average cloud cover in June: 8

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 June
Atascadero, CA

Average visibility in June - Atascadero, CA
  • Average visibility in June: 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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