January weather forecast
Pekalongan, Indonesia

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Weather in January

January, the same as December, is a moderately hot summer month in Pekalongan, Indonesia, with temperature in the range of an average low of 23.2°C and an average high of 29.9°C.

Temperature

The average high-temperature during January matches that of the preceding month. An average low-temperature of 23.2°C is recorded in the month of January.

Heat index

The heat index in January is computed to be a sweltering 38°C. Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in January is 81%.

Rainfall

The month with the most rainfall in Pekalongan, Indonesia, is January, when the rain falls for 28.3 days and typically aggregates up to 273mm of precipitation.

Sea temperature

In January, the average sea temperature in Pekalongan is 28.9°C.
Note: Water temperatures between 25°C and 29°C are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The average length of the day in January is 12h and 28min.
On the first day of January, sunrise is at 05:29 and sunset at 18:00. On the last day of the month, sunrise is at 05:42 and sunset at 18:06 WIB.

Sunshine

The average sunshine in January in Pekalongan, Indonesia, is 8.6h.

UV index

January, May through 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 6 suggests this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

How hot is January in Pekalongan?

The high-temperature, in January, in Pekalongan, records 29.9°C, while the low-temperature is 23.2°C. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in January is computed to be 38°C.

What is the average humidity in January in Pekalongan?

The average relative humidity in January in Pekalongan, Indonesia, is 81%.

What is the wettest month in Pekalongan?

The month with the most rainfall is January, when the rain falls for 28.3 days and typically aggregates up to 273mm of precipitation.

How much does it rain in Pekalongan in January?

In Pekalongan, Indonesia, in January, it is raining for 28.3 days, with typically 273mm of accumulated precipitation.

What is the sea water temperature in January in Pekalongan?

In January, the average sea temperature is 28.9°C. Water temperature between 25°C and 29°C is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in January in Pekalongan?

In January, the average day length in Pekalongan, Indonesia, is 12h and 28min.

When is the sunrise / sunset in January in Pekalongan?

In January, on the first day of the month, sunrise is at 05:29 and sunset at 18:00. On the last day of the month, in Pekalongan, Indonesia, sunrise is at 05:42 and sunset at 18:06 WIB.

How many hours of sunshine does Pekalongan have in January?

In January, the average sunshine duration in Pekalongan is 8.6h.

What is the month with the lowest UV index in Pekalongan?

January, May through September and November, with an average maximum UV index of 6, are months with the lowest UV index.

What is the UV index reading in January in Pekalongan?

In Pekalongan, the average daily maximum UV index in January is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
Pekalongan, Indonesia

Average temperature in January - Pekalongan, Indonesia
  • Average high temperature in January: 29.9°C

The warmest month (with the highest average high temperature) is March (30.5°C).
The month with the lowest average high temperature is July (28.5°C).

  • Average low temperature in January: 23.2°C

The month with the highest average low temperature is April (23.5°C).
The coldest month (with the lowest average low temperature) is August (20.9°C).

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Average pressure in January
Pekalongan, Indonesia

Average pressure in January - Pekalongan, Indonesia
  • Average pressure in January: 1009.4mbar

The months with the highest atmospheric pressure are August and September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

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Average wind speed in January
Pekalongan, Indonesia

Average wind speed in January - Pekalongan, Indonesia
  • Average wind speed in January: 5.6km/h

The windiest month (with the highest average wind speed) is August (8.8km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

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Average humidity in January
Pekalongan, Indonesia

Average humidity in January - Pekalongan, Indonesia
  • Average humidity in January: 81%

The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are September and October (79%).

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Average rainfall in January
Pekalongan, Indonesia

Average rainfall in January - Pekalongan, Indonesia
  • Average rainfall in January: 273mm

The wettest month (with the highest rainfall) is January (273mm).
The driest month (with the least rainfall) is August (24mm).

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Average rainfall days in January
Pekalongan, Indonesia

Average rainfall days in January - Pekalongan, Indonesia
  • Average rainfall days in January: 28.3 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (13.8 days).

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Average sea temperature in January
Pekalongan, Indonesia

Average sea temperature in January - Pekalongan, Indonesia
  • Average sea temperature in January: 28.9°C

The best month for swimming (with the highest average sea temperature) is December (30.2°C).
The coldest month (with the lowest average sea temperature) is August (28°C).

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Average daylight in January /
Average sunshine in January
Pekalongan, Indonesia

Average daylight in January / Average sunshine in January - Pekalongan, Indonesia
  • Average daylight in January: 12h and 3min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in January: 8h and 4min

The month with the most sunshine is February (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

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Average sunshine days in January
Pekalongan, Indonesia

Average sunshine days in January - Pekalongan, Indonesia
  • Average sunshine days in January: 2 days

The month with the most sunshine days is August (12.1 days).
The month with the least sunshine days is February (1.5 days).

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Average UV index in January
Pekalongan, Indonesia

Average UV index in January - Pekalongan, Indonesia
  • Average UV index in January: 6

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

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Average cloud cover in January
Pekalongan, Indonesia

Average cloud cover in January - Pekalongan, Indonesia
  • 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 August (Cloud cover 37).

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Average visibility in January
Pekalongan, Indonesia

Average visibility in January - Pekalongan, Indonesia
  • 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).

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Pekalongan, Indonesia

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