Climate and monthly weather forecastSerang, Indonesia

The climate of Serang

Serang, encompassed by the tropical rainforest climate according to the Köppen climate classification, is located in Indonesia. The Af (Tropical rainforest) climate zone, typifies Serang, with high humidity and rainfall being key features throughout the year. The city experiences only minor fluctuations in temperatures, with average monthly highs ranging from 29.6°C (85.3°F) to 31.6°C (88.9°F), whereas the lows hover from 24.5°C (76.1°F) to 26°C (78.8°F). This signifies a minimal difference in terms of seasonal temperatures.

The recorded relative humidity in Serang is fairly high year-round, fluctuating from 71% to 78%. Prolonged humidity potentially contributes to consistent rainfall, which is a dominant feature of the region. Rainfall in Serang is heaviest during halfway through the year, with higher downpours from 169mm (6.65") to 180mm (7.09") in the initial months reduced to lows of 27mm (1.06") by the ninth month.

Serang experiences high UV index values throughout the year, consistently recording a UV index of 7. This indicates the necessity of protective measures against prolonged sun exposure, regardless of the season. The number of daylight hours available barely changes over the months, from a low of 11.8 hours to a high of 12.5 hours. This minimal variation aligns with Serang's tropical location, close to the equator.

The best time to visit Serang

The optimal time to visit Serang is noted to be the ninth month when the region experiences the least rainfall of just 27mm (1.06") and enjoys an average of 16.3 days of sunshine. During this period, the average temperatures hover around a pleasant 31.2°C (88.2°F) during the day and drop to a comfortable 24.9°C (76.8°F) at night. Visitors can relish the pleasant weather, maximizing outdoor activities with 12.1 hours of daylight available each day during this month.

The worst time to visit Serang

Travelers may find the early part of the year, particularly the first and second months, less favorable due to high precipitation. These months observe the highest rainfall levels, around 180mm (7.09"), coupled with a high number of rainfall days, ranging between 26.8 and 28.8. The relative humidity is also on the higher side reaching 78%, which, combined with rainfall, could deter outdoor activities. However, the temperature remains fairly consistent, mitigating the discomfort.

Spring weather in Serang

Serang doesn't experience a conventional spring due to its tropical climate. The third, fourth, and fifth months see rainfall quantities decline from 169mm (6.65") to 102mm (4.02"). The daylight hours slightly decrease from 12.1 to 11.8, while the minimum and maximum temperature values range from 25.6°C (78.1°F) to 30.2°C (86.4°F) and 25.8°C (78.4°F) to 30.9°C (87.6°F), respectively.

Summer weather in Serang

Summer in Serang, corresponds to the sixth, seventh, and eighth months, sees a significant drop in rainfall, and sees a decline in the relative humidity down to 73%. The temperatures settle within a comfortable range of 24.5°C (76.1°F) to 30.7°C (87.3°F). The days average 11.9 daylight hours, providing ample light for multiple activities.

Autumn weather in Serang

The transition to autumn, observed in the ninth, tenth, and eleventh months, sees rainfall levels rise again, moving from 27mm (1.06") to 123mm (4.84"). The average daylight hours incrementally increase to 12.4 hours, with temperatures ranging between 24.9°C (76.8°F) to 31.8°C (89.2°F), implying an increase towards the later months.

Winter weather in Serang

Winter, in the twelfth month, doesn't bring cold weather to Serang due to its tropical climate. The temperatures linger between 25.8°C (78.4°F) to 30.4°C (86.7°F), while rainfall measures approximately 128mm (5.04"). There is an average of 12.5 hours of daylight during this period, allowing residents and visitors alike to make the most of their day.

Weather in January

In Serang, Indonesia, the start of the year greets locals and travelers alike with a relatively wet climate. The month sees an average of 180mm (7.09") of rain spread over about 29 days, marking January as one of Serang's wetter periods. Weather in January »

Weather in February

The shortest month in the calendar carries over January's wet conditions with near similar rainfall and humidity levels in Serang. Changes in average temperatures remain negligible, so travelers can expect conditions to remain more or less consistent. Weather in February »

Weather in March

The arrival of March signals a small retreat of the city's frequent rain, a downward trend that continues till the middle of the year. Even though rainfall dips slightly, the city's weather stays relatively stagnant with temperature and humidity levels consistent with the preceding months. Weather in March »

Weather in April

Visiting Serang in April is a welcome change for many as the weather transitions into a slightly drier climate. Average rainfall reduces to 144mm (5.67") throughout the entire month, providing locals and tourists more opportunities to enjoy the outdoors. Weather in April »

Weather in May

Serang's weather climbs into its pinnacle as we move into May. With a dip in average rainfall to 102mm (4.02"), it is one of the drier months for the city. Typical humidity and temperature fluctuations remain minuscule, displaying no significant changes that might disrupt daily life. Weather in May »

Weather in June

June in Serang welcomes both the summer solstice and a continuing dip in the city's monthly rainfall. The tropical climate remains consistent with the usual temperature and humidity levels. A decline in daylight hours to 11.8 hours aligns with the city’s transition into the middle of the year. Weather in June »

Weather in July

July moves Serang into its driest phase with average rainfall settling at a mere 40mm (1.57"). With drier conditions taking hold, time spent outdoors is more appealing. The city’s constant tropical temperature keeps it warm despite the shift in rain levels. Weather in July »

Weather in August

August in Serang stands out from the trend of the middle months with a marginal increase in rainfall. Although the increase hardly affects the city's overall climate, the difference is noticeable when compared with the preceding and following months. Weather in August »

Weather in September

With September, the dry spell fades and Serang’s rainy season re-emerges. Rainfall measures an average of 27mm (1.06"), marking the city’s transition into its wetter season. Despite the increase in rain, the city's temperatures and humidity levels remain steady, providing a familiar ambiance. Weather in September »

Weather in October

October acts as the bridge between Serang's mild and intense rainy season. The city experiences a threefold increase in rainfall to 75mm (2.95"), offering a sharp contrast to the preceding dry months. Albeit the change in weather, the city's daily temperatures do not deviate significantly from its usual range. Weather in October »

Weather in November

November marks the start of Serang's intense rainy season as rainfall scales up to a substantial average of 123mm (4.84"). The city's climate stays true to its tropical roots with minimal temperature and humidity fluctuations. Weather in November »

Weather in December

December documentation indicates it as the month with the highest rainfall in Serang. With an average of 128mm (5.04") of rain, it reminds the city of the frequent downpours experienced at the start of the year. The seasonal shift is evident yet the temperature and humidity levels stay aligned with Serang's tropical climate. Weather in December »