January weather forecast
Namatanai, Papua New Guinea

January

Weather in January

January ushers in the year with a warm weather profile having temperatures from 25.8°C (78.4°F) to 28.5°C (83.3°F). The month is marked by a high relative humidity that adds to the warmth of Papua New Guinea. Namatanai receives substantial rainfall during this period, maintaining an abundant green environment. The winds are gentle and the sea maintains a balmy temperature, rendering the region ideal for seaside relaxation and water-based activities. The month sees 217mm (8.54") of rainfall spread over 27.1 days, further enhancing the lush vistas of Namatanai.

Temperature

January's advent notes a subtle adjustment in average high-temperature to a still warm 28.5°C (83.3°F) from December. Namatanai registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 25.8°C (78.4°F) during January.

Heat index

In January, the average heat index is computed to be a hot 33°C (91.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant 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

In January, the average relative humidity is 79%.

Rainfall

In Namatanai, in January, during 27.1 rainfall days, 217mm (8.54") of precipitation is typically accumulated. Throughout the year, there are 314.3 rainfall days, and 2023mm (79.65") of precipitation is accumulated.

Sea temperature

In Namatanai, in January, the average water temperature is 29.9°C (85.8°F).
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.

Daylight

In Namatanai, the average length of the day in January is 12h and 19min.
On the first day of January, sunrise is at 05:43 and sunset at 18:03. On the last day of the month, sunrise is at 05:55 and sunset at 18:11 +10.

Sunshine

January and February, with an average of 9.7h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Namatanai are January through March, May through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 7 in January converts into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Warning! The Sun's UV rays intensify with reflections from sand and water.

Frequently asked questions

How hot is it in January?
The high-temperature during January is 28.5°C (83.3°F) and the low-temperature is 25.8°C (78.4°F). In January, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 33°C (91.4°F).
What is the average humidity in January?
In Namatanai, the average relative humidity in January is 79%.
How much does it rain in January?
In January, the rain falls for 27.1 days. Throughout January, 217mm (8.54") of precipitation is accumulated.
How warm is the water in January?
In Namatanai, the average seawater temperature in January is 29.9°C (85.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
What is the average length of the day in January?
The average day length in January is 12h and 19min.
What time are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 05:43 and sunset at 18:03. On the last day of the month, sunrise is at 05:55 and sunset at 18:11 +10.
What is the month with the most sunshine?
The months with the most sunshine are January and February, with an average of 9.7h of sunshine.
How long on average sun shines in January?
In Namatanai, the average sunshine duration in January is 9.7h.
When is the highest UV index in Namatanai?
The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7.
How high is the UV index in January?
The average daily maximum UV index in January is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January - Namatanai, Papua New Guinea
Average temperature in January
Namatanai, Papua New Guinea
  • Average high temperature in January: 28.5°C

The warmest month (with the highest average high temperature) is May (29.3°C).
The month with the lowest average high temperature is July (28.4°C).

  • Average low temperature in January: 25.8°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is September (25.1°C).

Average pressure in January - Namatanai, Papua New Guinea
Average pressure in January
Namatanai, Papua New Guinea
  • Average pressure in January: 1007.8mbar

The months with the highest atmospheric pressure are August and September (1010mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).

Average wind speed in January - Namatanai, Papua New Guinea
Average wind speed in January
Namatanai, Papua New Guinea
  • Average wind speed in January: 10.4km/h

The windiest month (with the highest average wind speed) is August (13.6km/h).
The calmest month (with the lowest average wind speed) is April (7.5km/h).

Average humidity in January - Namatanai, Papua New Guinea
Average humidity in January
Namatanai, Papua New Guinea
  • Average humidity in January: 79%

The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are October and November (77%).

Average rainfall in January - Namatanai, Papua New Guinea
Average rainfall in January
Namatanai, Papua New Guinea
  • Average rainfall in January: 217mm

The wettest month (with the highest rainfall) is March (226mm).
The driest month (with the least rainfall) is September (109mm).

Average rainfall days in January - Namatanai, Papua New Guinea
Average rainfall days in January
Namatanai, Papua New Guinea
  • Average rainfall days in January: 27.1 days

The month with the highest number of rainy days is March (27.9 days).
The month with the least rainy days is September (24.4 days).

Average sea temperature in January - Namatanai, Papua New Guinea
Average sea temperature in January
Namatanai, Papua New Guinea
  • Average sea temperature in January: 29.9°C

The best months for swimming (with the highest average sea temperature) are November and December (30.3°C).
The coldest month (with the lowest average sea temperature) is August (29.2°C).

Average daylight in January / Average sunshine in January - Namatanai, Papua New Guinea
Average daylight in January /
Average sunshine in January
Namatanai, Papua New Guinea
  • Average daylight in January: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in January: 9h and 4min

The months with the most sunshine are January and February (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).

Average sunshine days in January - Namatanai, Papua New Guinea
Average sunshine days in January
Namatanai, Papua New Guinea
  • Average sunshine days in January: 2.8 days

The month with the most sunshine days is October (4.4 days).
The month with the least sunshine days is April (1.6 days).

Average UV index in January - Namatanai, Papua New Guinea
Average UV index in January
Namatanai, Papua New Guinea
  • Average UV index in January: 7

The months with the highest UV index are January, February, March, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is April (UV index 6).

Average cloud cover in January - Namatanai, Papua New Guinea
Average cloud cover in January
Namatanai, Papua New Guinea
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are May, September, October and November (Cloud cover 36).

Average visibility in January - Namatanai, Papua New Guinea
Average visibility in January
Namatanai, Papua New Guinea
  • Average visibility in January: 9km

The months with the highest visibility are February, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, March and April (9km).

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