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 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
Weather in December
Temperature
The advent of December observes an average high-temperature of a pleasant 21.2°C (70.2°F), nearly identical to November's 19.4°C (66.9°F). Napier's average nighttime temperature in December modestly descends to a comfortable 18°C (64.4°F).Humidity
The average relative humidity in December in Napier is 75%.Rainfall
In Napier, in December, it is raining for 10.9 days, with typically 13mm (0.51") of accumulated precipitation. Throughout the year, in Napier, there are 148.7 rainfall days, and 308mm (12.13") of precipitation is accumulated.Daylight
December has the longest days of the year in Napier, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 05:20 and sunset at 19:38. On the last day of December, in Napier, sunrise is at 05:30 and sunset at 19:56 SAST.
Sunshine
In Napier, South Africa, the average sunshine in December is 9.8h.UV index
In Napier, the average daily maximum UV index in December is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a daily maximum UV index of 5 leads to the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What are the temperatures in Napier in December?
What is the average humidity in December in Napier?
How much does it rain in Napier in December?
When are the longest days in Napier?
How many hours of daylight does Napier have in December?
When is the sunrise / sunset in December in Napier?
How long on average sun shines in December in Napier?
What is the UV index reading in December in Napier?
Average temperature in December
Napier, 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
Napier, 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
Napier, 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
Napier, 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
Napier, 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
Napier, 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 daylight in December /
Average sunshine in December
Napier, 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
Napier, 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
Napier, 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
Napier, 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
Napier, 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).
Napier, South Africa
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