June weather forecast
San Mateo, SC

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Weather in June

The first month of the summer, June, is a tropical month in San Mateo, South Carolina, with an average temperature ranging between min 66.4°F (19.1°C) and max 88°F (31.1°C).

Temperature

San Mateo's June weather indicates a minor increase in high-temperatures, edging from May's warm 80.1°F (26.7°C) to a tropical 88°F (31.1°C). During June, San Mateo reports a marked contrast from daily peak temperatures, with an average nighttime reading of 66.4°F (19.1°C).

Heat index

The average heat index in June is calculated to be a fiery hot 100.4°F (38°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In San Mateo, the average relative humidity in June is 71%.

Rainfall

In San Mateo, during June, the rain falls for 12.4 days and regularly aggregates up to 1.85" (47mm) of precipitation. In San Mateo, during the entire year, the rain falls for 136.3 days and collects up to 19.02" (483mm) of precipitation.

Snowfall

In San Mateo, snow does not fall in April through November.

Daylight

With an average of 14h and 24min of daylight, June has the longest days of the year in San Mateo.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:38 pm. On the last day of June, sunrise is at 6:21 am and sunset at 8:47 pm EDT.

Sunshine

In June, the average sunshine is 10.7h.

UV index

With an average maximum UV index of 7, June is the month with the highest UV index in San Mateo. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 7 in June leads to these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

How hot does it get in June?

The average high-temperature, in June, in San Mateo, is 88°F (31.1°C), while the average low-temperature is 66.4°F (19.1°C). In June, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 100.4°F (38°C).

What is the average humidity in June?

The average relative humidity in June is 71%.

How much does it rain in San Mateo in June?

In San Mateo, during June, the rain falls for 12.4 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow?

In San Mateo, snow does not fall in April through November.

When are the longest days?

June has the longest days of the year, with an average of 14h and 24min of daylight.

What is the average length of the day in June?

In San Mateo, the average day length in June is 14h and 26min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 6:19 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:47 pm EDT.

How many hours of sunshine does San Mateo have in June?

In San Mateo, the average sunshine duration in June is 10.7h.

When is the highest UV index?

June is the month with the highest UV index, with an average maximum UV index of 7.

What is the UV index reading in June?

In San Mateo, the average daily maximum UV index in June is 7. 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
San Mateo, SC

Average temperature in June - San Mateo, SC
  • Average high temperature in June: 88°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in June: 66.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in June
San Mateo, SC

Average pressure in June - San Mateo, SC
  • Average pressure in June: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in June
San Mateo, SC

Average wind speed in June - San Mateo, SC
  • Average wind speed in June: 5.1mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in June
San Mateo, SC

Average humidity in June - San Mateo, SC
  • Average humidity in June: 71%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

Average rainfall in June
San Mateo, SC

Average rainfall in June - San Mateo, SC
  • Average rainfall in June: 1.85"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

Average rainfall days in June
San Mateo, SC

Average rainfall days in June - San Mateo, SC
  • Average rainfall days in June: 12.4 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

Average snowfall in June
San Mateo, SC

Average snowfall in June - San Mateo, SC
  • Average snowfall in June: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in June
San Mateo, SC

Average snowfall days in June - San Mateo, SC
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in June /
Average sunshine in June
San Mateo, SC

Average daylight in June / Average sunshine in June - San Mateo, SC
  • Average daylight in June: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in June: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in June
San Mateo, SC

Average sunshine days in June - San Mateo, SC
  • Average sunshine days in June: 15.6 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in June
San Mateo, SC

Average UV index in June - San Mateo, SC
  • Average UV index in June: 7

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in June
San Mateo, SC

Average cloud cover in June - San Mateo, SC
  • Average cloud cover in June: 29

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in June
San Mateo, SC

Average visibility in June - San Mateo, SC
  • Average visibility in June: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

San Mateo, South Carolina, USA

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