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
Longwood experiences an average high-temperature of a warm 23.1°C (73.6°F) in January, marking an insignificant shift from 21.5°C (70.7°F) in December. During January, Longwood's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 22.2°C (72°F).Humidity
The average relative humidity in January in Longwood is 80%.Rainfall
In January, the rain falls for 9.8 days. Throughout January, 8mm (0.31") of precipitation is accumulated. In Longwood, Saint Helena, Ascension and Tristan da Cunha, during the entire year, the rain falls for 133.1 days and collects up to 92mm (3.62") of precipitation.Daylight
The average length of the day in January is 12h and 57min.On the first day of the month, sunrise is at 05:54 and sunset at 18:57. On the last day of January, sunrise is at 06:11 and sunset at 19:00 GMT.
Sunshine
In Longwood, the average sunshine in January is 7.4h.UV index
January through March and May, with an average maximum UV index of 6, are months with the highest UV index in Longwood. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 6 transforms into these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What are January temperatures in Longwood?
What is the average humidity in January in Longwood?
How many days does it rain in January in Longwood?
How many hours of daylight does Longwood have in January?
What time are sunrise and sunset in January in Longwood?
How many hours of sunshine does Longwood have in January?
What is the month with the highest UV index in Longwood?
What is the UV index reading in January in Longwood?
Average temperature in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average high temperature in January: 23.1°C
The warmest month (with the highest average high temperature) is March (24.7°C).
The month with the lowest average high temperature is September (19.7°C).
- Average low temperature in January: 22.2°C
The month with the highest average low temperature is March (23.5°C).
The coldest months (with the lowest average low temperature) are September and October (18.7°C).
Average pressure in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average pressure in January: 1015.1mbar
The months with the highest atmospheric pressure are July and August (1019.8mbar).
The month with the lowest atmospheric pressure is February (1014.1mbar).
Average wind speed in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average wind speed in January: 21.8km/h
The windiest month (with the highest average wind speed) is September (28.4km/h).
The calmest month (with the lowest average wind speed) is January (21.8km/h).
Average humidity in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average humidity in January: 80%
The month with the highest relative humidity is October (82%).
The months with the lowest relative humidity are June and July (74%).
Average rainfall in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average rainfall in January: 8mm
The wettest month (with the highest rainfall) is June (11mm).
The driest months (with the least rainfall) are May, September, October and November (6mm).
Average rainfall days in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is November (8.5 days).
Average daylight in January /
Average sunshine in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average daylight in January: 13h and 0min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in January: 7h and 2min
The month with the most sunshine is February (Average sunshine: 7h and 30min).
The month with the least sunshine is September (Average sunshine: 4h and 0min).
Average sunshine days in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average sunshine days in January: 8.8 days
The month with the most sunshine days is May (13.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average UV index in January: 6
The months with the highest UV index are January, February, March and May (UV index 6).
The months with the lowest UV index are August, September and October (UV index 4).
Average cloud cover in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average cloud cover in January: 48
The month with the most cloud cover is September (Cloud cover 74).
The month with the least cloud cover is February (Cloud cover 44).
Average visibility in January
Longwood, Saint Helena, Ascension and Tristan da Cunha
- 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).
Longwood, Saint Helena, Ascension and Tristan da Cunha
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