June weather forecast
Fairfield, CA

Share

Weather in June

The first month of the summer, June, is still a warm month in Fairfield, California, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 83.7°F (28.7°C).

Temperature

June's onset brings a subtle temperature rise, moving from 74.8°F (23.8°C) in May to a still moderately hot 83.7°F (28.7°C). June nights bring a significant cooling from the heat of the day, with averages of 55°F (12.8°C).

Heat index

The heat index value for June is appraised at a hot 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Heat index determinations are made taking into account the shade and light air movements. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In Fairfield, California, the average relative humidity in June is 55%.

Rainfall

In June, the rain falls for 1.9 days. Throughout June, 0.08" (2mm) of precipitation is accumulated. In Fairfield, during the entire year, the rain falls for 71.4 days and collects up to 12.13" (308mm) of precipitation.

Daylight

June has the longest days of the year, with an average of 14h and 48min of daylight.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:26 pm. On the last day of June, sunrise is at 5:48 am and sunset at 8:35 pm PDT.

Sunshine

In Fairfield, the average sunshine in June is 11.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In June, an average UV index of 6 transforms into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

Is it hot during June?

The average high-temperature and low-temperature during June are 83.7°F (28.7°C) and 55°F (12.8°C) respectively. In June, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the average humidity in June?

In June, the average relative humidity in Fairfield is 55%.

How much does it rain in June?

In Fairfield, in June, it is raining for 1.9 days, with typically 0.08" (2mm) of accumulated precipitation.

When are the longest days?

The month with the longest days is June, with an average of 14h and 48min of daylight.

How many hours of daylight does Fairfield have in June?

The average day length in June is 14h and 47min.

When is the sunrise / sunset in June?

In June, on the first day of the month, sunrise is at 5:46 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:35 pm PDT.

How long on average sun shines in June?

The average sunshine duration in June is 11.7h.

When is the highest UV index?

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

How high is the UV index in June?

In Fairfield, the average daily maximum UV index in June is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Fairfield, CA

Average temperature in June - Fairfield, CA
  • Average high temperature in June: 83.7°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in June: 55°F

The month with the highest average low temperature is September (57.6°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in June
Fairfield, CA

Average pressure in June - Fairfield, CA
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in June
Fairfield, CA

Average wind speed in June - Fairfield, CA
  • Average wind speed in June: 7mph

The windiest months (with the highest average wind speed) are May, June and July (7mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

Average humidity in June
Fairfield, CA

Average humidity in June - Fairfield, CA
  • Average humidity in June: 55%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (52%).

Average rainfall in June
Fairfield, CA

Average rainfall in June - Fairfield, CA
  • Average rainfall in June: 0.08"

The wettest month (with the highest rainfall) is February (2.4").
The driest month (with the least rainfall) is August (0").

Average rainfall days in June
Fairfield, CA

Average rainfall days in June - Fairfield, CA
  • Average rainfall days in June: 1.9 days

The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is August (0.7 days).

Average daylight in June /
Average sunshine in June
Fairfield, CA

Average daylight in June / Average sunshine in June - Fairfield, CA
  • Average daylight in June: 14h and 5min

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 June: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in June
Fairfield, CA

Average sunshine days in June - Fairfield, CA
  • Average sunshine days in June: 28 days

The month with the most sunshine days is August (30.2 days).
The month with the least sunshine days is March (17 days).

Average UV index in June
Fairfield, CA

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

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

Average cloud cover in June
Fairfield, CA

Average cloud cover in June - Fairfield, CA
  • Average cloud cover in June: 12

The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in June
Fairfield, CA

Average visibility in June - Fairfield, 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).

Fairfield, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location