January weather forecastKoror, Palau
January
Weather in January
If visiting Koror, Palau in January, anticipate moderate temperatures balanced between highs of 28.7°C (83.7°F) and lows reaching 28°C (82.4°F). The onset of the year in Palau marks the onset of constant mild, tropical weather. Although slightly cooler than following months, it has one of the year's higher relative humidity levels which adds to the sense of warmth. Notably, January displays its capacity for sudden turbulence with the highest wind gust speeds of the year hitting 32.5km/h (20.2mph). This month sets the tone for a year filled with warm, humid, and occasionally breezy weather.Temperature
Koror's shift into January is marked by a subtle change to a still moderately hot 28.7°C (83.7°F) from December's 28.9°C (84°F) in temperature. January nights in Koror witness a mild cool down to an average low of 28°C (82.4°F).Heat index
During January, the heat index is computed to be a hot 34°C (93.2°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
January through April, with an average relative humidity of 78%, are the most humid months.Rainfall
In Koror, during January, the rain falls for 27.8 days and regularly aggregates up to 167mm (6.57") of precipitation. Throughout the year, there are 303.8 rainfall days, and 2074mm (81.65") of precipitation is accumulated.Sea temperature
January through March, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater in Koror.Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.
Daylight
In January, the average length of the day is 11h and 45min.On the first day of the month, sunrise is at 06:14 and sunset at 17:56. On the last day of January, in Koror, sunrise is at 06:21 and sunset at 18:09 +09.
Sunshine
The average sunshine in January is 7.4h.UV index
January, September and November, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 6 in January translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take note! Sand and water reflections strengthen the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Koror, Palau
- Average high temperature in January: 28.7°C
The warmest month (with the highest average high temperature) is May (29.3°C).
The months with the lowest average high temperature are February and March (28.3°C).
- Average low temperature in January: 28°C
The month with the highest average low temperature is November (28.4°C).
The coldest month (with the lowest average low temperature) is February (27.5°C).
Average pressure in January
Koror, Palau
- Average pressure in January: 1008.8mbar
The months with the highest atmospheric pressure are February and March (1009.6mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in January
Koror, Palau
- Average wind speed in January: 22.7km/h
The windiest month (with the highest average wind speed) is February (24.5km/h).
The calmest month (with the lowest average wind speed) is June (13.5km/h).
Average humidity in January
Koror, Palau
- Average humidity in January: 78%
The months with the highest relative humidity are January, February, March and April (78%).
The month with the lowest relative humidity is June (75%).
Average rainfall in January
Koror, Palau
- Average rainfall in January: 167mm
The wettest month (with the highest rainfall) is June (209mm).
The driest month (with the least rainfall) is March (119mm).
Average rainfall days in January
Koror, Palau
- Average rainfall days in January: 27.8 days
The months with the highest number of rainy days are January and December (27.8 days).
The month with the least rainy days is September (23.4 days).
Average sea temperature in January
Koror, Palau
- Average sea temperature in January: 28°C
The best months for swimming (with the highest average sea temperature) are April, May, June, July, August, September, October, November and December (29°C).
The coldest months (with the lowest average sea temperature) are January, February and March (28°C).
Average daylight in January /
Average sunshine in January
Koror, Palau
- Average daylight in January: 11h and 48min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January: 7h and 24min
The month with the most sunshine is May (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in January
Koror, Palau
- Average sunshine days in January: 1.8 days
The month with the most sunshine days is August (5.9 days).
The months with the least sunshine days are February and December (1.6 days).
Average UV index in January
Koror, Palau
- Average UV index in January: 6
The months with the highest UV index are February, March, April, May, June, July, August, October and December (UV index 7).
The months with the lowest UV index are January, September and November (UV index 6).
Average cloud cover in January
Koror, Palau
- Average cloud cover in January: 45
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 43).
Average visibility in January
Koror, Palau
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (10km).
The months with the lowest visibility are September and November (9km).





