January Weather in St Helena

Last updated: March 2, 2024

The weather in St Helena, Australia, during January is characterized by an average temperature of 21°C (70°F). Highs can soar to 39°C (103°F), while lows may dip to 10°C (51°F). Typically, the humidity level in St Helena throughout January hovers around 43%.

10°C (51°F)

Minimum temperature

21°C (70°F)

Average temperature

39°C (103°F)

Maximum temperature

43%

Humidity

Precipitation and Sunshine hours

In January, St Helena averages 42 mm (1.6 inches) of rainfall, typically over the course of 5 rainy days. The month enjoys an average of 14 hours 26 minutes of daylight, with the sun shining for approximately 9 hours 0 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

42 mm (1.6 inches)

Precipitation

5 rainy days

Rainy days

9 hours 0 minutes

Sunshine hours

35%

Chance of sun

UV Index

In January, the UV Index in St Helena reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	2	4	6	10	12	14	13	11	8	5	3	1
Exposure	Low		Moderate	High	VeryHigh	Extreme				VeryHigh	Moderate		Low
Time to burn	45 min		30 min	25 min	15 min	10 min				15 min	30 min		45 min