Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
In the transition from December to January, Bryanston reports an average high-temperature of a still moderately hot 27.4°C (81.3°F), indicating a close resemblance to the prior month. Throughout the month of January, Bryanston witnesses an average low-temperature of 16.6°C (61.9°F).Heat index
Throughout January, the heat index is appraised at 29°C (84.2°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
The average relative humidity in January is 63%.Rainfall
The month with the most rainfall in Bryanston is January, when the rain falls for 13.2 days and typically aggregates up to 57mm (2.24") of precipitation.Daylight
The average length of the day in January in Bryanston is 13h and 33min.On the first day of January, sunrise is at 05:18 and sunset at 19:03. On the last day of the month, sunrise is at 05:41 and sunset at 19:00 SAST.
Sunshine
In Bryanston, the average sunshine in January is 11.4h.UV index
January, February, October and November, 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 vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 6 in January leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January in Bryanston?
What is the average humidity in January in Bryanston?
What is the wettest month in Bryanston?
How much does it rain in Bryanston in January?
What is the average length of the day in January in Bryanston?
What time are sunrise and sunset in January in Bryanston?
How many hours of sunshine does Bryanston have in January?
What is the month with the highest UV index in Bryanston?
What is the UV index intensity in January in Bryanston?
Average temperature in January
Bryanston, South Africa
- Average high temperature in January: 27.4°C
The warmest month (with the highest average high temperature) is December (27.5°C).
The month with the lowest average high temperature is July (17.9°C).
- Average low temperature in January: 16.6°C
The month with the highest average low temperature is January (16.6°C).
The coldest month (with the lowest average low temperature) is July (6.1°C).
Average pressure in January
Bryanston, South Africa
- Average pressure in January: 1013.1mbar
The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1013.1mbar).
Average wind speed in January
Bryanston, South Africa
- Average wind speed in January: 8.9km/h
The windiest month (with the highest average wind speed) is November (11.6km/h).
The calmest month (with the lowest average wind speed) is May (7.8km/h).
Average humidity in January
Bryanston, South Africa
- Average humidity in January: 63%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is September (34%).
Average rainfall in January
Bryanston, South Africa
- Average rainfall in January: 57mm
The wettest month (with the highest rainfall) is January (57mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in January
Bryanston, South Africa
- Average rainfall days in January: 13.2 days
The month with the highest number of rainy days is January (13.2 days).
The month with the least rainy days is July (1.4 days).
Average daylight in January /
Average sunshine in January
Bryanston, South Africa
- Average daylight in January: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in January: 11h and 2min
The month with the most sunshine is October (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in January
Bryanston, South Africa
- Average sunshine days in January: 16.3 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is January (16.3 days).
Average UV index in January
Bryanston, South Africa
- Average UV index in January: 6
The months with the highest UV index are January, February, October and November (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in January
Bryanston, South Africa
- Average cloud cover in January: 26
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Bryanston, South Africa
- Average visibility in January: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
