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
Port Nolloth records a slight change with December's average high-temperatures adjusting to a still pleasant 22.9°C (73.2°F) from November's 21.8°C (71.2°F). An average low-temperature of 16.6°C (61.9°F) is common in Port Nolloth during the nights of December.Humidity
The average relative humidity in December is 72%.Rainfall
The month with the least rainfall is December, when the rain falls for 2.8 days and typically collects 1mm (0.04") of precipitation.Sea temperature
In December, the average sea temperature in Port Nolloth, South Africa, is 16.3°C (61.3°F).Note: Swimming is not a pleasant activity for most individuals in 16.3°C (61.3°F). Breathing becomes increasingly challenging to control 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 0min of daylight.On the first day of the month, sunrise is at 05:45 and sunset at 19:37. On the last day of December, in Port Nolloth, South Africa, sunrise is at 05:56 and sunset at 19:55 SAST.
Sunshine
The month with the most sunshine in Port Nolloth is December, with an average of 11.8h of sunshine.UV index
In December, the average daily maximum UV index in Port Nolloth is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Port Nolloth?
What is the average humidity in December in Port Nolloth?
What is the driest month in Port Nolloth?
How much does it rain in Port Nolloth in December?
What is the sea water temperature in December in Port Nolloth?
When are the longest days in Port Nolloth?
How many hours of daylight does Port Nolloth have in December?
When is the sunrise / sunset in December in Port Nolloth?
What month has the most sunshine in Port Nolloth?
How many hours of sunshine does Port Nolloth have in December?
How high is the UV index in December in Port Nolloth?
Average temperature in December
Port Nolloth, South Africa
- Average high temperature in December: 22.9°C
The warmest month (with the highest average high temperature) is February (24.3°C).
The month with the lowest average high temperature is August (18.6°C).
- Average low temperature in December: 16.6°C
The month with the highest average low temperature is February (18.1°C).
The coldest month (with the lowest average low temperature) is August (12.3°C).
Average pressure in December
Port Nolloth, South Africa
- Average pressure in December: 1013.5mbar
The month with the highest atmospheric pressure is July (1021.5mbar).
The month with the lowest atmospheric pressure is February (1012.4mbar).
Average wind speed in December
Port Nolloth, South Africa
- Average wind speed in December: 19.4km/h
The windiest month (with the highest average wind speed) is November (20.3km/h).
The calmest month (with the lowest average wind speed) is May (13.7km/h).
Average humidity in December
Port Nolloth, South Africa
- Average humidity in December: 72%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is July (60%).
Average rainfall in December
Port Nolloth, South Africa
- Average rainfall in December: 1mm
The wettest month (with the highest rainfall) is June (9mm).
The driest month (with the least rainfall) is December (1mm).
Average rainfall days in December
Port Nolloth, South Africa
- Average rainfall days in December: 2.8 days
The month with the highest number of rainy days is June (5.1 days).
The month with the least rainy days is December (2.8 days).
Average sea temperature in December
Port Nolloth, South Africa
- Average sea temperature in December: 16.3°C
The best month for swimming (with the highest average sea temperature) is January (17.7°C).
The coldest months (with the lowest average sea temperature) are July and August (13.4°C).
Average daylight in December /
Average sunshine in December
Port Nolloth, South Africa
- Average daylight in December: 14h and 0min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in December: 11h and 5min
The month with the most sunshine is December (Average sunshine: 11h and 48min).
The month with the least sunshine is June (Average sunshine: 9h and 12min).
Average sunshine days in December
Port Nolloth, South Africa
- Average sunshine days in December: 26.1 days
The months with the most sunshine days are March and May (26.3 days).
The month with the least sunshine days is February (22.3 days).
Average UV index in December
Port Nolloth, South Africa
- Average UV index in December: 5
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are June and August (UV index 4).
Average cloud cover in December
Port Nolloth, South Africa
- Average cloud cover in December: 13
The month with the most cloud cover is October (Cloud cover 16).
The months with the least cloud cover are March and July (Cloud cover 12).
Average visibility in December
Port Nolloth, 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).
