January weather forecast
Falehau, Tonga

The sweltering heat and high humidity paint a vivid picture of Falehau in January, with the city getting its fair share of abundant sunshine coupled with limited cloud soakage. A surge in rainfall to 290mm (11.42"), the highest of the year, signals bouts of thunderstorms amidst the tropical weather. This tropical climate, native to Falehau, seems to mellow down in February. Sweeping gusty winds can also be expected, keeping the breeze in perpetual motion. In spite of this, the city retains a charm that is unrivaled, welcoming visitors with its tropical mood.

Temperature

Falehau starts January with an average high-temperature of a still warm 28.6°C (83.5°F), a minor shift from December's 28.1°C (82.6°F). The nights of January are characterized by an average low-temperature of 27.8°C (82°F), subtly descending from daytime highs.

Heat index

Throughout January, the heat index is estimated at a hot 33°C (91.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In January, the average relative humidity in Falehau is 77%.

Rainfall

The month with the most rainfall is January, when the rain falls for 25 days and typically aggregates up to 290mm (11.42") of precipitation.

Daylight

The average length of the day in January is 12h and 57min.
On the first day of January, sunrise is at 06:06 and sunset at 19:10. On the last day of the month, sunrise is at 06:24 and sunset at 19:12 +13.

Sunshine

The average sunshine in January in Falehau is 7.5h.

UV index

The months with the highest UV index in Falehau are January through May, July through September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 7 transforms into these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.