Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Struisbaai commences December with an average high-temperature of a pleasant 21.2°C (70.2°F), maintaining a close resemblance to the previous month. A mean low-temperature of 18°C (64.4°F) is anticipated during the month of December, a slight step down from the daytime high.Humidity
In Struisbaai, the average relative humidity in December is 75%.Rainfall
In Struisbaai, during December, the rain falls for 10.9 days and regularly aggregates up to 13mm (0.51") of precipitation. Throughout the year, in Struisbaai, there are 148.7 rainfall days, and 308mm (12.13") of precipitation is accumulated.Sea temperature
In December, the average sea temperature is 19.7°C (67.5°F).Note: Most people do not take pleasure in swimming in water at 19.7°C (67.5°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the longest days is December, with an average of 14h and 24min of daylight.On the first day of December in Struisbaai, South Africa, sunrise is at 05:19 and sunset at 19:38. On the last day of the month, sunrise is at 05:29 and sunset at 19:56 SAST.
Sunshine
The average sunshine in December in Struisbaai is 9.8h.UV index
In Struisbaai, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 5 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Struisbaai?
What is the average humidity in December in Struisbaai?
How many days does it rain in December in Struisbaai?
How cold is the water in December in Struisbaai?
When are the longest days in Struisbaai?
What is the average length of the day in December in Struisbaai?
When are sunrise and sunset in December in Struisbaai?
How long on average sun shines in December in Struisbaai?
How high is the UV index in December in Struisbaai?
Average temperature in December
Struisbaai, South Africa
- Average high temperature in December: 21.2°C
The warmest month (with the highest average high temperature) is February (22.7°C).
The month with the lowest average high temperature is August (16.1°C).
- Average low temperature in December: 18°C
The month with the highest average low temperature is February (19.3°C).
The coldest month (with the lowest average low temperature) is August (12°C).
Average pressure in December
Struisbaai, South Africa
- Average pressure in December: 1014.8mbar
The month with the highest atmospheric pressure is July (1021.7mbar).
The month with the lowest atmospheric pressure is February (1014mbar).
Average wind speed in December
Struisbaai, South Africa
- Average wind speed in December: 23.2km/h
The windiest month (with the highest average wind speed) is October (24.4km/h).
The calmest month (with the lowest average wind speed) is May (20.7km/h).
Average humidity in December
Struisbaai, South Africa
- Average humidity in December: 75%
The months with the highest relative humidity are February and March (77%).
The month with the lowest relative humidity is June (73%).
Average rainfall in December
Struisbaai, South Africa
- Average rainfall in December: 13mm
The wettest month (with the highest rainfall) is June (51mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in December
Struisbaai, South Africa
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is September (14 days).
The month with the least rainy days is February (10.6 days).
Average sea temperature in December
Struisbaai, South Africa
- Average sea temperature in December: 19.7°C
The best months for swimming (with the highest average sea temperature) are January and February (21.3°C).
The coldest month (with the lowest average sea temperature) is August (14.6°C).
Average daylight in December /
Average sunshine in December
Struisbaai, South Africa
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 9h and 5min
The month with the most sunshine is November (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).
Average sunshine days in December
Struisbaai, South Africa
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is May (15.8 days).
The month with the least sunshine days is September (12.4 days).
Average UV index in December
Struisbaai, South Africa
- Average UV index in December: 5
The month with the highest UV index is February (UV index 6).
The months with the lowest UV index are June, July, August and September (UV index 4).
Average cloud cover in December
Struisbaai, South Africa
- Average cloud cover in December: 38
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in December
Struisbaai, South Africa
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
