December weather forecast
Umbumbulu, South Africa

englishespañol中文
Share

Weather in December

The first month of the summer, December, is a moderately hot month in Umbumbulu, South Africa, with an average temperature ranging between max 24.4°C (75.9°F) and min 19.5°C (67.1°F).

Temperature

A minimal variation is noted in Umbumbulu's average high-temperature at the onset of December, reaching a moderately hot 24.4°C (75.9°F) from November's 22.8°C (73°F). Umbumbulu observes a minimal variance in temperature, with a consistent average low of 19.5°C (67.1°F) during the nights of December.

Humidity

December is the most humid month in Umbumbulu, with an average relative humidity of 83%.

Rainfall

In Umbumbulu, in December, during 22.5 rainfall days, 77mm (3.03") of precipitation is typically accumulated. Throughout the year, in Umbumbulu, South Africa, there are 177.7 rainfall days, and 573mm (22.56") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 14h and 0min of daylight.
On the first day of December in Umbumbulu, sunrise is at 04:48 and sunset at 18:44. On the last day of the month, sunrise is at 04:59 and sunset at 19:01 SAST.

Sunshine

In Umbumbulu, the average sunshine in December is 7.3h.

UV index

January through March and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 in December translates into these instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Jan 26, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the usual temperature for Umbumbulu in December?

December temperatures in Umbumbulu, South Africa, vary between a high-temperature of 24.4°C (75.9°F) and a low-temperature of 19.5°C (67.1°F).

What is the most humid month in Umbumbulu?

With an average relative humidity of 83%, December is the most humid month in Umbumbulu, South Africa.

What is the average humidity in December in Umbumbulu?

In December, the average relative humidity in Umbumbulu, South Africa, is 83%.

How many days does it rain in December in Umbumbulu?

In Umbumbulu, during December, the rain falls for 22.5 days and regularly aggregates up to 77mm (3.03") of precipitation.

When are the longest days in Umbumbulu?

The month with the longest days is December, with an average of 14h and 0min of daylight.

How many hours of daylight does Umbumbulu have in December?

The average day length in December in Umbumbulu, South Africa, is 14h and 2min.

When is the sunrise / sunset in December in Umbumbulu?

In December, on the first day of the month, sunrise is at 04:48 and sunset at 18:44. On the last day of the month, in Umbumbulu, sunrise is at 04:59 and sunset at 19:01 SAST.

How many hours of sunshine does Umbumbulu have in December?

The average sunshine duration in December in Umbumbulu, South Africa, is 7.3h.

When is the highest UV index in Umbumbulu?

The months with the highest UV index in Umbumbulu are January through March and December, with an average maximum UV index of 6.

How high is the UV index in December in Umbumbulu?

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in December
Umbumbulu, South Africa

Average temperature in December - Umbumbulu, South Africa
  • Average high temperature in December: 24.4°C

The warmest month (with the highest average high temperature) is February (26.2°C).
The month with the lowest average high temperature is July (20.9°C).

  • Average low temperature in December: 19.5°C

The month with the highest average low temperature is February (20.6°C).
The coldest month (with the lowest average low temperature) is July (14.3°C).

Average pressure in December
Umbumbulu, South Africa

Average pressure in December - Umbumbulu, South Africa
  • Average pressure in December: 1014.3mbar

The month with the highest atmospheric pressure is July (1023.1mbar).
The month with the lowest atmospheric pressure is January (1014.2mbar).

Average wind speed in December
Umbumbulu, South Africa

Average wind speed in December - Umbumbulu, South Africa
  • Average wind speed in December: 15.1km/h

The windiest month (with the highest average wind speed) is October (16.6km/h).
The calmest month (with the lowest average wind speed) is May (12.8km/h).

Average humidity in December
Umbumbulu, South Africa

Average humidity in December - Umbumbulu, South Africa
  • Average humidity in December: 83%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is June (63%).

Average rainfall in December
Umbumbulu, South Africa

Average rainfall in December - Umbumbulu, South Africa
  • Average rainfall in December: 77mm

The wettest month (with the highest rainfall) is November (80mm).
The driest month (with the least rainfall) is June (12mm).

Average rainfall days in December
Umbumbulu, South Africa

Average rainfall days in December - Umbumbulu, South Africa
  • Average rainfall days in December: 22.5 days

The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is June (6.1 days).

Average daylight in December /
Average sunshine in December
Umbumbulu, South Africa

Average daylight in December / Average sunshine in December - Umbumbulu, 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 12min).

  • Average sunshine in December: 7h and 2min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is April (Average sunshine: 5h and 54min).

Average sunshine days in December
Umbumbulu, South Africa

Average sunshine days in December - Umbumbulu, South Africa
  • Average sunshine days in December: 5.7 days

The month with the most sunshine days is June (21.3 days).
The month with the least sunshine days is December (5.7 days).

Average UV index in December
Umbumbulu, South Africa

Average UV index in December - Umbumbulu, South Africa
  • Average UV index in December: 6

The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is October (UV index 4).

Average cloud cover in December
Umbumbulu, South Africa

Average cloud cover in December - Umbumbulu, South Africa
  • Average cloud cover in December: 58

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 17).

Average visibility in December
Umbumbulu, South Africa

Average visibility in December - Umbumbulu, South Africa
  • Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, June, July, August and September (10km).
The months with the lowest visibility are January, October, November and December (9km).

Umbumbulu, South Africa

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location