October weather forecastMyrtle Beach, SC
October
Weather in October
As Myrtle Beach, South Carolina, ushers in October, there’s a tangible shift to fall weather, with temperatures dropping and rainfall decreasing. Average high temperatures settle at around 73.6°F (23.1°C) and average lows at about 61.7°F (16.5°C). The amount of rainfall further declines to approximately 1.97" (50mm) anticipated across nearly 10 days. The progression into November sustains the decrease in the city’s temperature and precipitation levels. The milder weather conditions, coupled with the pleasant sea temperatures, offer a beautiful backdrop for outdoor adventures and excursions.Temperature
The arrival of October suggests a slight decrease in the average high-temperature, moving from a warm 81.7°F (27.6°C) in September to a still moderately hot 73.6°F (23.1°C). An average nighttime temperature of 61.7°F (16.5°C) is witnessed throughout October.Humidity
In Myrtle Beach, the average relative humidity in October is 75%.Rainfall
In October, the rain falls for 10 days. Throughout October, 1.97" (50mm) of precipitation is accumulated. In Myrtle Beach, during the entire year, the rain falls for 166.5 days and collects up to 28.78" (731mm) of precipitation.Snowfall
In Myrtle Beach, snow does not fall in March through November.Ocean temperature
In Myrtle Beach, the average seawater temperature in October is 76.3°F (24.6°C).Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 76.3°F (24.6°C) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In Myrtle Beach, the average length of the day in October is 11h and 20min.On the first day of October, sunrise is at 7:10 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:23 pm EDT.
Sunshine
The average sunshine in October is 6.4h.UV index
In October, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during October translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Myrtle Beach, SC
- Average high temperature in October: 73.6°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in October: 61.7°F
The month with the highest average low temperature is July (76.3°F).
The coldest month (with the lowest average low temperature) is January (42.1°F).
Average pressure in October
Myrtle Beach, SC
- Average pressure in October: 30.03"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in October
Myrtle Beach, SC
- Average wind speed in October: 9.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7.9mph).
Average humidity in October
Myrtle Beach, SC
- Average humidity in October: 75%
The months with the highest relative humidity are May, June, August and December (78%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in October
Myrtle Beach, SC
- Average rainfall in October: 1.97"
The wettest month (with the highest rainfall) is August (4.53").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in October
Myrtle Beach, SC
- Average rainfall days in October: 10 days
The months with the highest number of rainy days are July and August (19.8 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in October
Myrtle Beach, SC
- Average snowfall in October: 0"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in October
Myrtle Beach, SC
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in October
Myrtle Beach, SC
- Average sea temperature in October: 76.3°F
The best month for swimming (with the highest average sea temperature) is August (82.9°F).
The coldest month (with the lowest average sea temperature) is March (57.7°F).
Average daylight in October /
Average sunshine in October
Myrtle Beach, SC
- Average daylight in October: 11h and 18min
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 October: 6h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in October
Myrtle Beach, SC
- Average sunshine days in October: 19.1 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in October
Myrtle Beach, SC
- Average UV index in October: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in October
Myrtle Beach, SC
- Average cloud cover in October: 27
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in October
Myrtle Beach, SC
- Average visibility in October: 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).
