June weather forecast
Swansea, SC

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Weather in June

The first month of the summer, June, is a hot month in Swansea, South Carolina, with an average temperature ranging between min 70.3°F (21.3°C) and max 87.6°F (30.9°C).

Temperature

June's onset witnesses a minor shift in the average high-temperature, moving from a moderately hot 81.1°F (27.3°C) in May to a tropical 87.6°F (30.9°C). In Swansea, the average nighttime temperature during June is a pleasant 70.3°F (21.3°C).

Heat index

The heat index value during June is estimated at a sweltering 100.4°F (38°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Swansea, the average relative humidity in June is 72%.

Rainfall

In Swansea, in June, during 16.6 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, in Swansea, South Carolina, there are 166.8 rainfall days, and 32.56" (827mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Swansea.

Daylight

June has the longest days of the year, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 6:14 am and sunset at 8:30 pm. On the last day of June, in Swansea, sunrise is at 6:17 am and sunset at 8:39 pm EDT.

Sunshine

The average sunshine in June in Swansea, South Carolina, is 10.8h.

UV index

June and July, with an average maximum UV index of 7, are months with the highest UV index in Swansea. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 7 during June leads to these advisories:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

How hot is June in Swansea?

Swansea in June has an average high-temperature of 87.6°F (30.9°C) and an average low-temperature of 70.3°F (21.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in June is estimated at 100.4°F (38°C).

What is the average humidity in June in Swansea?

The average relative humidity in June is 72%.

How many days does it rain in June in Swansea?

In Swansea, in June, during 16.6 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow in Swansea?

In Swansea, South Carolina, snow does not fall in April through November.

When are the longest days in Swansea?

The month with the longest days in Swansea, South Carolina, is June, with an average of 14h and 24min of daylight.

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

In Swansea, the average day length in June is 14h and 22min.

When is the sunrise / sunset in June in Swansea?

On the first day of June, sunrise is at 6:14 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:39 pm EDT.

How many hours of sunshine does Swansea have in June?

The average sunshine duration in June in Swansea, South Carolina, is 10.8h.

What are the months with the highest UV index in Swansea?

June and July, with an average maximum UV index of 7, are months with the highest UV index in Swansea, South Carolina.

What is the UV index intensity in June in Swansea?

The average daily maximum UV index in June is 7. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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
Swansea, SC

Average temperature in June - Swansea, SC
  • Average high temperature in June: 87.6°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.2°F).

  • Average low temperature in June: 70.3°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

Average pressure in June
Swansea, SC

Average pressure in June - Swansea, SC
  • Average pressure in June: 29.97"Hg

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in June
Swansea, SC

Average wind speed in June - Swansea, SC
  • Average wind speed in June: 6.3mph

The windiest months (with the highest average wind speed) are February, March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in June
Swansea, SC

Average humidity in June - Swansea, SC
  • Average humidity in June: 72%

The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January and November (70%).

Average rainfall in June
Swansea, SC

Average rainfall in June - Swansea, SC
  • Average rainfall in June: 2.76"

The wettest month (with the highest rainfall) is December (3.86").
The driest months (with the least rainfall) are September and November (2.01").

Average rainfall days in June
Swansea, SC

Average rainfall days in June - Swansea, SC
  • Average rainfall days in June: 16.6 days

The month with the highest number of rainy days is July (19.9 days).
The months with the least rainy days are October and November (9 days).

Average snowfall in June
Swansea, SC

Average snowfall in June - Swansea, SC
  • Average snowfall in June: 0"

The months with the highest snowfall are January and 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
Swansea, SC

Average snowfall days in June - Swansea, SC
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (0.7 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
Swansea, SC

Average daylight in June / Average sunshine in June - Swansea, 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: 10h and 0min).

  • Average sunshine in June: 10h and 5min

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 30min).

Average sunshine days in June
Swansea, SC

Average sunshine days in June - Swansea, SC
  • Average sunshine days in June: 11.1 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (8.4 days).

Average UV index in June
Swansea, SC

Average UV index in June - Swansea, SC
  • Average UV index in June: 7

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in June
Swansea, SC

Average cloud cover in June - Swansea, SC
  • Average cloud cover in June: 28

The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).

Average visibility in June
Swansea, SC

Average visibility in June - Swansea, SC
  • 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).

Swansea, South Carolina, USA

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