January weather forecast
Galle, Sri Lanka

January in Galle, Sri Lanka brings a relatively mild introduction to the year. Often, the city experiences a more agreeable climate, balancing a slightly cooler temperature compared to the other months. Also, sea temperatures are enjoyable, attracting a substantial influx of tourists. Intriguingly, wind speeds do peak at about 8.6km/h (5.3mph), creating a refreshing and light breeze. Despite receiving 38mm (1.5") of rainfall spread across slightly fewer than 15 days, the weather remains mainly agreeable.

Temperature

Galle experiences a recorded average high-temperature of a still warm 29.2°C (84.6°F) in January, closely aligned with December's 28.9°C (84°F). In Galle, the January nights cool down to an average low of 24°C (75.2°F).

Heat index

January's heat index is evaluated at a fiery hot 35°C (95°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. 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 vital to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Galle, the average relative humidity in January is 78%.

Rainfall

The month with the least rainfall is January, when the rain falls for 14.8 days and typically collects 38mm (1.5") of precipitation.

Sea temperature

In January, the average sea temperature in Galle is 27.8°C (82°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The average length of the day in January in Galle is 11h and 49min.
On the first day of January in Galle, sunrise is at 06:18 and sunset at 18:05. On the last day of the month, sunrise is at 06:26 and sunset at 18:18 +0530.

Sunshine

In Galle, Sri Lanka, the average sunshine in January is 9h.

UV index

The months with the highest UV index are January through April, June through August, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 7 in January translates into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Caution! Sand and water surfaces escalate the UV intensity from the Sun.