Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
In Saint Helena, the onset of June comes with an increased average high-temperature, moving from May's 74.1°F (23.4°C) to a still warm 83.8°F (28.8°C). The average low-temperature of 52.5°F (11.4°C) in June in Saint Helena represents a significant drop from the daily high.Heat index
June's average heat index is calculated to be a hot 86°F (30°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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 Saint Helena, the average relative humidity in June is 56%.Rainfall
June is the last month it rains. During 2 rainfall days, in June, Saint Helena aggregates 0.12" (3mm) of precipitation. Throughout the year, there are 76.2 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
In Saint Helena, snow does not fall in January, February, April through December.Daylight
June has the longest days of the year in Saint Helena, with an average of 14h and 48min of daylight.On the first day of June in Saint Helena, sunrise is at 5:47 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:38 pm PDT.
Sunshine
The average sunshine in June in Saint Helena, California, is 11.5h.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 hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 6 during June translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
How hot is it in Saint Helena in June?
What is the average humidity in June in Saint Helena?
What is the last month it rains in Saint Helena?
When it does not snow in Saint Helena?
When are the longest days in Saint Helena?
How many hours of daylight does Saint Helena have in June?
When is the sunrise / sunset in June in Saint Helena?
How long on average sun shines in June in Saint Helena?
What are the months with the highest UV index in Saint Helena?
What is the UV index reading in June in Saint Helena?
Average temperature in June
Saint Helena, CA
- Average high temperature in June: 83.8°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in June: 52.5°F
The month with the highest average low temperature is September (54.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).
Average pressure in June
Saint Helena, 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, August and September (29.91"Hg).
Average wind speed in June
Saint Helena, CA
- Average wind speed in June: 5.6mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in June
Saint Helena, CA
- Average humidity in June: 56%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (53%).
Average rainfall in June
Saint Helena, CA
- Average rainfall in June: 0.12"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is July (0").
Average rainfall days in June
Saint Helena, CA
- Average rainfall days in June: 2 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (0.3 days).
Average snowfall in June
Saint Helena, CA
- Average snowfall in June: 0"
The month with the highest snowfall is March (0.04").
The months with the least snowfall are January, February, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in June
Saint Helena, CA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is March (0.2 days).
The months with the least snowfall days are January, February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in June /
Average sunshine in June
Saint Helena, 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 30min).
- Average sunshine in June: 11h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in June
Saint Helena, CA
- Average sunshine days in June: 27.3 days
The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in June
Saint Helena, 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
Saint Helena, CA
- Average cloud cover in June: 14
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in June
Saint Helena, CA
- Average visibility in June: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Saint Helena, California, USA
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