May weather forecast
Semarang, Indonesia

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Weather in May

May brings about a significant change in Semarang's weather - a remarkable reduction in rainfall marks the beginning of the dry season. Comparatively clearer skies lead to increased sunshine hours, brightening the cityscape considerably. Comfortable temperatures persist with a minor dip, making this month more enjoyable in terms of outdoor activities. Sea temperatures also rise slightly during May. The consistent pressure level of 1010.1mbar (29.83inHg) provides an indication of the relatively stable weather conditions in this month.

Temperature

Semarang's weather in May displays an average high-temperature of a still warm 27.7°C (81.9°F), showing minor disparity from April's 27.5°C (81.5°F). In May, the average low-temperature is a pleasant 21.3°C (70.3°F).

Heat index

May's heat index is estimated at a tropical 32°C (89.6°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The months with the highest humidity are February, April and May, with an average relative humidity of 86%.

Rainfall

In Semarang, in May, it is raining for 27.2 days, with typically 268mm (10.55") of accumulated precipitation. In Semarang, during the entire year, the rain falls for 305 days and collects up to 2988mm (117.64") of precipitation.

Sea temperature

In Semarang, in May, the average water temperature is 29.8°C (85.6°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

The average length of the day in May is 11h and 48min.
On the first day of the month, sunrise is at 05:39 and sunset at 17:31. On the last day of May, sunrise is at 05:43 and sunset at 17:28 WIB.

Sunshine

The average sunshine in May is 7.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index in Semarang. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Warning! The reflection of sand and water increases the UV dose.

Frequently asked questions

What is the average May temperature in Semarang?

An average high-temperature, in May, in Semarang, is 27.7°C (81.9°F) and the average low-temperature is 21.3°C (70.3°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in May is estimated at 32°C (89.6°F).

What is the most humid month in Semarang?

The months with the highest humidity in Semarang, Indonesia, are February, April and May, with an average relative humidity of 86%.

What is the average humidity in May in Semarang?

In Semarang, Indonesia, the average relative humidity in May is 86%.

How many days does it rain in May in Semarang?

In Semarang, during May, the rain falls for 27.2 days and regularly aggregates up to 268mm (10.55") of precipitation.

What is the water temperature in May in Semarang?

In Semarang, the average seawater temperature in May is 29.8°C (85.6°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in May in Semarang?

In Semarang, the average day length in May is 11h and 48min.

What time are sunrise and sunset in May in Semarang?

On the first day of May, sunrise is at 05:39 and sunset at 17:31. On the last day of the month, sunrise is at 05:43 and sunset at 17:28 WIB.

How many hours of sunshine does Semarang have in May?

The average sunshine duration in May in Semarang, Indonesia, is 7.8h.

What is the month with 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.

When is the lowest UV index in Semarang?

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

How high is the UV index in May in Semarang?

In Semarang, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Semarang, Indonesia

Average temperature in May - Semarang, Indonesia
  • Average high temperature in May: 27.7°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 May: 21.3°C

The 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).

Average pressure in May
Semarang, Indonesia

Average pressure in May - Semarang, Indonesia
  • Average pressure in May: 1010.1mbar

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

Average wind speed in May
Semarang, Indonesia

Average wind speed in May - Semarang, Indonesia
  • Average wind speed in May: 4.3km/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).

Average humidity in May
Semarang, Indonesia

Average humidity in May - Semarang, Indonesia
  • Average humidity in May: 86%

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

Average rainfall in May
Semarang, Indonesia

Average rainfall in May - Semarang, Indonesia
  • Average rainfall in May: 268mm

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

Average rainfall days in May
Semarang, Indonesia

Average rainfall days in May - Semarang, Indonesia
  • Average rainfall days in May: 27.2 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).

Average sea temperature in May
Semarang, Indonesia

Average sea temperature in May - Semarang, Indonesia
  • Average sea temperature in May: 29.8°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).

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

Average daylight in May / Average sunshine in May - Semarang, Indonesia
  • Average daylight in May: 11h and 5min

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 May: 7h and 5min

The month with the most sunshine is August (Average sunshine: 8h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in May
Semarang, Indonesia

Average sunshine days in May - Semarang, Indonesia
  • Average sunshine days in May: 2 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).

Average UV index in May
Semarang, Indonesia

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

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

Average cloud cover in May
Semarang, Indonesia

Average cloud cover in May - Semarang, Indonesia
  • Average cloud cover in May: 44

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

Average visibility in May
Semarang, Indonesia

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

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

Semarang, Indonesia

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