June weather forecastMillbrae, CA
June
Weather in June
The first month of the summer, June, is still a refreshing month in Millbrae, California, with an average temperature varying between 67.6°F (19.8°C) and 54°F (12.2°C).Temperature
Millbrae records an average high-temperature of a still comfortable 67.6°F (19.8°C) in June, closely mirroring the climate of the previous month. During the month of June, the nighttime temperature falls to an average of 54°F (12.2°C).Humidity
In Millbrae, the average relative humidity in June is 75%.Rainfall
In June, the rain falls for 2.4 days. Throughout June, 0.16" (4mm) of precipitation is accumulated. Throughout the year, there are 81.5 rainfall days, and 12.8" (325mm) of precipitation is accumulated.Daylight
The month with the longest days is June, with an average of 14h and 42min of daylight.On the first day of June, sunrise is at 5:49 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:35 pm PDT.
Sunshine
The average sunshine in June is 11.6h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In June, the maximum UV index of 5 transforms into these recommendations:
Exercise prevention - Warding off sunburn is urged. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Millbrae, CA
- Average high temperature in June: 67.6°F
The warmest month (with the highest average high temperature) is September (70.2°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in June: 54°F
The month with the highest average low temperature is September (56.8°F).
The coldest month (with the lowest average low temperature) is January (47.5°F).
Average pressure in June
Millbrae, CA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in June
Millbrae, CA
- Average wind speed in June: 7.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.1mph).
Average humidity in June
Millbrae, CA
- Average humidity in June: 75%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Millbrae, CA
- Average rainfall in June: 0.16"
The wettest month (with the highest rainfall) is February (2.44").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in June
Millbrae, CA
- Average rainfall days in June: 2.4 days
The month with the highest number of rainy days is March (12.8 days).
The months with the least rainy days are June and July (2.4 days).
Average daylight in June /
Average sunshine in June
Millbrae, CA
- Average daylight in June: 14h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in June: 11h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in June
Millbrae, CA
- Average sunshine days in June: 23.7 days
The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is March (16.3 days).
Average UV index in June
Millbrae, CA
- Average UV index in June: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and December (UV index 3).
Average cloud cover in June
Millbrae, CA
- Average cloud cover in June: 17
The month with the most cloud cover is March (Cloud cover 36).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility in June
Millbrae, 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).
