January weather forecast
Honiara, Solomon Islands

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A tropical white sand beach in Honiara, in the glorious Solomon Islands, with palm trees and shrubs along the edge
A tropical white sand beach in Honiara, in the glorious Solomon Islands, with palm trees and shrubs along the edge

Weather in January

January in Honiara, Solomon Islands presents a warm start to the year accompanied by a high level of humidity. Characterized by the highest average temperature of 28.8°C (83.8°F), this month exhibits a tropical climate pattern throughout. A notable amount of precipitation is registered, making a significant proportion of the month's days rainy. It's the month with highest rainfall recorded at 274mm (10.79") and contributes to the lush greenery of the city. The sea temperature remains warm, ideal for water-based activities, despite the frequent showers.

Temperature

January's average high-temperature stands at a still warm 28.8°C (83.8°F), showing little deviation from December's 29.3°C (84.7°F). In Honiara, a slight decrease from the daytime peak is noted during the month of January, with an average low-temperature of 24.2°C (75.6°F).

Heat index

The average heat index in January is evaluated at a fiery hot 35°C (95°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level 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 largely significant for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

January, March and April, with an average relative humidity of 85%, are the most humid months.

Rainfall

In Honiara, in January, during 29.3 rainfall days, 274mm (10.79") of precipitation is typically accumulated. Throughout the year, there are 327.8 rainfall days, and 2474mm (97.4") of precipitation is accumulated.

Sea temperature

In Honiara, in January, the average water temperature is 30.1°C (86.2°F).
Note: One could feel the lack of refreshing sensation when in waters above 30°C (86°F).

Daylight

The average length of the day in January is 12h and 37min.
On the first day of January, sunrise is at 06:03 and sunset at 18:43. On the last day of the month, sunrise is at 06:17 and sunset at 18:49 +11.

Sunshine

January has the least sunshine of the year, with an average of 6.8h of sunshine.

UV index

January through March, June, August, October through December, 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 vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 6 in January transforms into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! Reflections from sand and water can intensify the Sun's UV radiation.

Frequently asked questions

How hot is January?

Honiara in January has an average high-temperature of 28.8°C (83.8°F) and an average low-temperature of 24.2°C (75.6°F). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in January is evaluated at 35°C (95°F).

What are the most humid months?

The months with the highest humidity are January, March and April, with an average relative humidity of 85%.

What is the average humidity in January?

In Honiara, the average relative humidity in January is 85%.

How much does it rain in Honiara in January?

In Honiara, in January, during 29.3 rainfall days, 274mm (10.79") of precipitation is typically accumulated.

What is the sea water temperature in January?

In January, the average sea temperature is 30.1°C (86.2°F). The water temperature above 30°C (86°F) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

What is the average length of the day in January?

The average day length in January is 12h and 37min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 06:03 and sunset at 18:43. On the last day of the month, sunrise is at 06:17 and sunset at 18:49 +11.

What is the month with the least sunshine?

January has the least sunshine of the year in Honiara, with an average of 6.8h of sunshine.

How long on average sun shines in January?

In Honiara, the average sunshine duration in January is 6.8h.

What is the month with the lowest UV index?

January through March, June, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Honiara.

What is the UV index reading in January in Honiara?

The average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in January
Honiara, Solomon Islands

Average temperature in January - Honiara, Solomon Islands
  • Average high temperature in January: 28.8°C

The warmest month (with the highest average high temperature) is December (29.3°C).
The month with the lowest average high temperature is July (27.8°C).

  • Average low temperature in January: 24.2°C

The month with the highest average low temperature is January (24.2°C).
The coldest months (with the lowest average low temperature) are August and September (23.4°C).

Average pressure in January
Honiara, Solomon Islands

Average pressure in January - Honiara, Solomon Islands
  • Average pressure in January: 1006.9mbar

The month with the highest atmospheric pressure is August (1010.5mbar).
The month with the lowest atmospheric pressure is January (1006.9mbar).

Average wind speed in January
Honiara, Solomon Islands

Average wind speed in January - Honiara, Solomon Islands
  • Average wind speed in January: 7.4km/h

The windiest month (with the highest average wind speed) is July (11.3km/h).
The calmest month (with the lowest average wind speed) is December (6km/h).

Average humidity in January
Honiara, Solomon Islands

Average humidity in January - Honiara, Solomon Islands
  • Average humidity in January: 85%

The months with the highest relative humidity are January, March and April (85%).
The months with the lowest relative humidity are August, September, October and November (83%).

Average rainfall in January
Honiara, Solomon Islands

Average rainfall in January - Honiara, Solomon Islands
  • Average rainfall in January: 274mm

The wettest months (with the highest rainfall) are March and December (299mm).
The driest month (with the least rainfall) is June (125mm).

Average rainfall days in January
Honiara, Solomon Islands

Average rainfall days in January - Honiara, Solomon Islands
  • Average rainfall days in January: 29.3 days

The months with the highest number of rainy days are January, March and December (29.3 days).
The month with the least rainy days is August (24.3 days).

Average sea temperature in January
Honiara, Solomon Islands

Average sea temperature in January - Honiara, Solomon Islands
  • Average sea temperature in January: 30.1°C

The best month for swimming (with the highest average sea temperature) is April (30.3°C).
The coldest month (with the lowest average sea temperature) is August (28.6°C).

Average daylight in January /
Average sunshine in January
Honiara, Solomon Islands

Average daylight in January / Average sunshine in January - Honiara, Solomon Islands
  • Average daylight in January: 12h and 4min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).

  • Average sunshine in January: 6h and 5min

The month with the most sunshine is November (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).

Average sunshine days in January
Honiara, Solomon Islands

Average sunshine days in January - Honiara, Solomon Islands
  • Average sunshine days in January: 0.3 days

The month with the most sunshine days is August (4 days).
The month with the least sunshine days is January (0.3 days).

Average UV index in January
Honiara, Solomon Islands

Average UV index in January - Honiara, Solomon Islands
  • Average UV index in January: 6

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

Average cloud cover in January
Honiara, Solomon Islands

Average cloud cover in January - Honiara, Solomon Islands
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 41).

Average visibility in January
Honiara, Solomon Islands

Average visibility in January - Honiara, Solomon Islands
  • Average visibility in January: 9km

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

Honiara, Solomon Islands

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