January weather forecast
Andriana, Madagascar

January in Andriana, Madagascar presents a significant spike in rainfall aggregating to 417mm (16.42"), the highest values throughout the year. The city experiences a tropical climate, seeing uniform high temperatures and elevated levels of relative humidity, manifesting in an extremely wet season. With ever-present climatic conditions, January sees frequent precipitation, but it is interspersed with a fair number of sunny days. The sea temperature remains at its zenith enabling water-based activities, while the UV index is modest, reducing the risk of sun-associated issues. Despite these somewhat inhospitable conditions, outdoor activities can still be enjoyed, thanks to the relatively balanced daylight hours and sunshine duration.

Temperature

Andriana experiences a minor change to a still moderately hot 28.5°C (83.3°F) in average high-temperature during January, closely reflecting December. Night temperatures in January exhibit a subtle decrease, settling at an average of 26.1°C (79°F).

Heat index

For January, the heat index is appraised at a tropical 33°C (91.4°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

January through March, with an average relative humidity of 78%, are the most humid months in Andriana.

Rainfall

January is the month with the most rainfall. Rain falls for 29.5 days and accumulates 417mm (16.42") of precipitation.

Sea temperature

January through April, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.

Daylight

The average length of the day in January is 12h and 49min.
On the first day of the month, sunrise is at 05:23 and sunset at 18:16. On the last day of January, sunrise is at 05:39 and sunset at 18:20 EAT.

Sunshine

The average sunshine in January is 9.5h.

UV index

The months with the lowest UV index are January, June through September, with an average maximum UV index of 6. 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: In January, the maximum UV index of 6 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Beware! Reflecting off water and sand, UV rays are much stronger.