January weather forecast
Semarang, Indonesia

Weather in January

January, the same as December, is a moderately hot summer month in Semarang, Indonesia, with temperature in the range of an average high of 26.9°C (80.4°F) and an average low of 21.6°C (70.9°F).

Temperature

In Semarang, the average high-temperature is essentially the same as in December - a still moderately hot 26.9°C (80.4°F). In January, the average low-temperature is 21.6°C (70.9°F).

Humidity

The average relative humidity in Semarang is 85%.

Rainfall

In Semarang, during January, the rain falls for 30.1 days and regularly aggregates up to 361mm (14.21") of precipitation. Throughout the year, in Semarang, there are 305 rainfall days, and 2988mm (117.64") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature in Semarang is 28.9°C (84°F).
Note: 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.

Daylight

January and December, with an average of 12.5h of daylight, are months with the longest days in Semarang.

Sunshine

In Semarang, the average sunshine in January is 7.7h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index in Semarang. Months with the lowest UV index in Semarang are January through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 in January transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the average humidity in January in Semarang?

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

How many days does it rain in January in Semarang?

In Semarang, in January, during 30.1 rainfall days, 361mm (14.21") of precipitation is typically accumulated.

How warm is the water in January in Semarang?

In Semarang, in January, the average water temperature is 28.9°C (84°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.

When are the longest days in Semarang?

Months with the longest days in Semarang are January and December, with an average of 12.5h of daylight.

How many hours of daylight does Semarang have in January?

The average length of the day in January is 12.5h.

How many hours of sunshine does Semarang have in January?

The average sunshine in January in Semarang, Indonesia, is 7.7h.

When is the highest UV index in Semarang?

January through December, with an average maximum UV index of 6, are months with the highest UV index in Semarang, Indonesia.

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

Months with the lowest UV index are January through December, with an average maximum UV index of 6.

What is the UV index intensity in January in Semarang?

In January, the average daily maximum UV index in Semarang, Indonesia, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.

Average temperature in January
Semarang, Indonesia

Average temperature in January - Semarang, Indonesia
  • Average high temperature in January: 26.9°C

The warmest month (with the highest average high temperature) is October (27.9°C).
The month with the lowest average high temperature is July (26.7°C).

  • Average low temperature in January: 21.6°C

Months with the highest average low temperature are January and December (21.6°C).
The coldest month (with the lowest average low temperature) is August (19.4°C).

[Resources]

Average pressure in January
Semarang, Indonesia

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

Months with the highest atmospheric pressure are August and September (1011.6mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

[Resources]

Average wind speed in January
Semarang, Indonesia

Average wind speed in January - Semarang, Indonesia
  • Average wind speed in January: 5.9km/h

The windiest months (with the highest average wind speed) are January, July, August and September (5.9km/h).
The calmest month (with the lowest average wind speed) is April (3.7km/h).

[Resources]

Average humidity in January
Semarang, Indonesia

Average humidity in January - Semarang, Indonesia
  • Average humidity in January: 85%

Months with the highest relative humidity are February, April and May (86%).
The month with the lowest relative humidity is September (81%).

[Resources]

Average rainfall in January
Semarang, Indonesia

Average rainfall in January - Semarang, Indonesia
  • Average rainfall in January: 361mm

The wettest month (with the highest rainfall) is March (404mm).
The driest month (with the least rainfall) is August (43mm).

[Resources]

Average rainfall days in January
Semarang, Indonesia

Average rainfall days in January - Semarang, Indonesia
  • Average rainfall days in January: 30.1 days

The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (15.8 days).

[Resources]

Average sea temperature in January
Semarang, Indonesia

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

The best month for swimming (with the highest average sea temperature) is December (30.3°C).
The coldest month (with the lowest average sea temperature) is August (28°C).

[Resources]

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

Average daylight in January / Average sunshine in January - Semarang, Indonesia
  • Average daylight in January: 12.5h

Months with the longest days are January and December (Average daylight: 12.5h).
The month with the shortest days is June (Average daylight: 11.7h).

  • Average sunshine in January: 7.7h

The month with the most sunshine is August (Average sunshine: 8.6h).
The month with the least sunshine is December (Average sunshine: 6.7h).

[Resources]

Average sunshine days in January
Semarang, Indonesia

Average sunshine days in January - Semarang, Indonesia
  • Average sunshine days in January: 0.3 days

The month with the most sunshine days is August (11.3 days).
The month with the least sunshine days is February (0.2 days).

[Resources]

Average UV index in January
Semarang, Indonesia

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

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

[Resources]

Average cloud cover in January
Semarang, Indonesia

Average cloud cover in January - Semarang, Indonesia
  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 36).

[Resources]

Average visibility in January
Semarang, Indonesia

Average visibility in January - Semarang, Indonesia
  • Average visibility in January: 8km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location