January weather forecast
Lancaster, Guyana

January, like December, is another hot winter month in Lancaster, Guyana, with an average temperature varying between 21.3°C (70.3°F) and 30.1°C (86.2°F).

Temperature

The advent of January presents an average high-temperature of a still tropical 30.1°C (86.2°F), maintaining a close correlation with the preceding month. January's nights observe an average temperature of 21.3°C (70.3°F).

Heat index

The average heat index in January is calculated to be a sweltering 39°C (102.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in January is 83%.

Rainfall

In January, in Lancaster, Guyana, the rain falls for 24.5 days. Throughout January, 58mm (2.28") of precipitation is accumulated. In Lancaster, during the entire year, the rain falls for 297.5 days and collects up to 1129mm (44.45") of precipitation.

Daylight

The average length of the day in January is 11h and 50min.
On the first day of the month, sunrise is at 06:02 and sunset at 17:50. On the last day of January, in Lancaster, sunrise is at 06:10 and sunset at 18:02 -04.

Sunshine

January has the least sunshine of the year in Lancaster, with an average of 5.3h of sunshine.

UV index

The months with the lowest UV index are January through May and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during January translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.