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
Weather in January
Temperature
Greenwich's average high-temperature marks a still moderately hot 27°C (80.6°F) with the advent of January, closely mirroring that of the preceding month. Greenwich, in January, registers a nighttime average temperature of 26°C (78.8°F).Heat index
Throughout January, the heat index is appraised at 29°C (84.2°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Observations indicate that the heat index values are for shady locations with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in January is 75%.Rainfall
In Greenwich, during January, the rain falls for 15 days and regularly aggregates up to 17mm (0.67") of precipitation. In Greenwich, Barbados, during the entire year, the rain falls for 233.8 days and collects up to 706mm (27.8") of precipitation.Daylight
In Greenwich, the average length of the day in January is 11h and 27min.On the first day of the month, sunrise is at 06:20 and sunset at 17:42. On the last day of January, in Greenwich, sunrise is at 06:25 and sunset at 17:58 AST.
Sunshine
The average sunshine in January is 6.8h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Greenwich. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 7 in January translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the average January temperature in Greenwich?
What is the average humidity in January in Greenwich?
How many days does it rain in January in Greenwich?
How many hours of daylight does Greenwich have in January?
When are sunrise and sunset in January in Greenwich?
How many hours of sunshine does Greenwich have in January?
What is the month with the highest UV index in Greenwich?
What is the month with the lowest UV index in Greenwich?
How high is the UV index in January in Greenwich?
Average temperature in January
Greenwich, Barbados
- Average high temperature in January: 27°C
The warmest months (with the highest average high temperature) are September and October (28.9°C).
The month with the lowest average high temperature is February (26.8°C).
- Average low temperature in January: 26°C
The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).
Average pressure in January
Greenwich, Barbados
- Average pressure in January: 1014.3mbar
The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in January
Greenwich, Barbados
- Average wind speed in January: 28.3km/h
The windiest months (with the highest average wind speed) are January and February (28.3km/h).
The calmest month (with the lowest average wind speed) is September (19.4km/h).
Average humidity in January
Greenwich, Barbados
- Average humidity in January: 75%
The months with the highest relative humidity are June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).
Average rainfall in January
Greenwich, Barbados
- Average rainfall in January: 17mm
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days in January
Greenwich, Barbados
- Average rainfall days in January: 15 days
The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (11.3 days).
Average daylight in January /
Average sunshine in January
Greenwich, Barbados
- Average daylight in January: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in January: 6h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in January
Greenwich, Barbados
- Average sunshine days in January: 12.8 days
The month with the most sunshine days is February (14.3 days).
The month with the least sunshine days is July (1.3 days).
Average UV index in January
Greenwich, Barbados
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in January
Greenwich, Barbados
- Average cloud cover in January: 37
The month with the most cloud cover is June (Cloud cover 49).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility in January
Greenwich, Barbados
- Average visibility in January: 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).
Greenwich, Barbados
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