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Contents
- The climate of Cilacap
- The best time to visit Cilacap
- The worst time to visit Cilacap
- Spring weather in Cilacap
- Summer weather in Cilacap
- Autumn weather in Cilacap
- Winter weather in Cilacap
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Cilacap
Corresponding with its location on the tropical island of Java, Indonesia, Cilacap endures a typical Tropical rainforest climate, classified as 'Af' in the Köppen climate system. Defined by a constant high-temperature range and considerable rainfall year-round, this climate type brings its unique set of challenges and benefits.
Throughout the year, temperatures in Cilacap display a narrow margin of variation, remaining consistent and warm. The highest average temperatures oscillate around the smallest possible margin, from 28.1°C (82.6°F) at its lowest in June to a maximum of 29.5°C (85.1°F) in March. Low temperatures likewise exhibit a marginal variation, oscillating from 23°C (73.4°F) in August, scaling up to 25.4°C (77.7°F) in January and May.
Rainfall in Cilacap is notably abundant due to its tropical rainforest climate, reaching peaks from January to March and November to December, with rainfall above 140mm (5.51") monthly on average. The dry period, predominantly between July and September, sees rainfall averages far below this peak, though none dips below 36mm (1.42"). While prevalent, this rain contributes to the high relative humidity experienced throughout the year, reaching an average high of 82% between June and July and a low of 79% between January, March, and December. Pressure, visibility, and cloud cover remain relatively stable throughout the year.
One noteworthy feature of Cilacap's climate is its constant exposure to tropical winds. From a gentle 8.9km/h (5.5mph) in March, winds escalate to reach their most intense in July at 16.7km/h (10.4mph). However, the most robust wind gusts can skyrocket up to 24km/h (14.9mph) also in July, providing a slight reprieve from the humid conditions.
Throughout the year, temperatures in Cilacap display a narrow margin of variation, remaining consistent and warm. The highest average temperatures oscillate around the smallest possible margin, from 28.1°C (82.6°F) at its lowest in June to a maximum of 29.5°C (85.1°F) in March. Low temperatures likewise exhibit a marginal variation, oscillating from 23°C (73.4°F) in August, scaling up to 25.4°C (77.7°F) in January and May.
Rainfall in Cilacap is notably abundant due to its tropical rainforest climate, reaching peaks from January to March and November to December, with rainfall above 140mm (5.51") monthly on average. The dry period, predominantly between July and September, sees rainfall averages far below this peak, though none dips below 36mm (1.42"). While prevalent, this rain contributes to the high relative humidity experienced throughout the year, reaching an average high of 82% between June and July and a low of 79% between January, March, and December. Pressure, visibility, and cloud cover remain relatively stable throughout the year.
One noteworthy feature of Cilacap's climate is its constant exposure to tropical winds. From a gentle 8.9km/h (5.5mph) in March, winds escalate to reach their most intense in July at 16.7km/h (10.4mph). However, the most robust wind gusts can skyrocket up to 24km/h (14.9mph) also in July, providing a slight reprieve from the humid conditions.
The best time to visit Cilacap
Given its tropical rainforest climate, there's no defined season regarded as the 'best' time to visit Cilacap. However, for those with a preference for drier periods, July to September is advisable. During these months, rainfall decreases, averaging out between 36mm (1.42") and 68mm (2.68"). Humidity drops slightly, and winds peak, offering a more refreshing breeze. Additionally, daylight lasts approximately 11.7 to 11.9 hours, allowing for long days to explore the tropical landscape.
The worst time to visit Cilacap
The least favorable period to visit Cilacap lies from January to March and November to December. This period sees the most precipitous weather, with rainfall surpassing 140mm (5.51"). The high volume of rain corresponds with a relative humidity reaching 80 to 81%, creating wet and uncomfortable conditions. For those not accustomed to the tropics' high humidity, this period might prove relatively challenging, even with the minor consolation of winds reaching a comfortable 8.9-11.5km/h (-7.1mph).
Spring weather in Cilacap
Cilacap's spring, much like the rest of its seasons, remains consistently warm and wet. From March to May, average temperatures stay high, between 29.5°C (85.1°F) to 29.1°C (84.4°F) during the day and 25.3°C (77.5°F) to 25.4°C (77.7°F) at night. Rainfall remains significant, with March and May experiencing a peak of 152mm (5.98") and 143mm (5.63"), respectively. April sees a slight decrease, with rainfall dropping to an average 145mm (5.71"). The relative humidity averages at 80% with the cloud percentage at around 40%, solidifying the atmosphere's general dampness.
Summer weather in Cilacap
The summer months in Cilacap, from June to August, are characterized as the driest period. The average rainfall moves between 68mm (2.68") and 36mm (1.42"), a drop compared to spring. Humidity decreases slightly, reaching an average high of 82%. Despite this change, temperatures remain high ranging from 28.1°C (82.6°F) to 27°C (80.6°F) during the day and 24.6°C (76.3°F) to 23°C (73.4°F) at night.
Autumn weather in Cilacap
Autumn, from September to November, signals a return to wetter conditions in Cilacap. Rainfall begins increasing again, going up from 51mm (2.01") in September to 149mm (5.87") in November. Temperatures during the day fluctuate around 27.3°C (81.1°F) to 28.5°C (83.3°F), while temperatures at nights grow warmer from 23.1°C (73.6°F) to 25.1°C (77.2°F). Cilacap's wind begins to calm down from its peak summer gusts, averaging 15.2km/h (9.4mph) in September and reducing to 10.2km/h (6.3mph) by November.
Winter weather in Cilacap
Winter months in Cilacap take place from December to February. While 'winter' may be an inappropriate term for a city with high temperature averages between 28.9°C (84°F) to 29.3°C (84.7°F) and lows ranging from 25.3°C (77.5°F) to 25.1°C (77.2°F), what sets these months apart is increased precipitation. The rainfall averages between 139mm (5.47") to150mm (5.91") during these months, establishing a wetter environment. Despite this, light remains ample, with daylight hours stretching between 12.5 to 12.6 hours, and visibility always at a steady 10km (6.2mi). Winds mild, and the cloud percentage is around 47%, accentuating the steamy, balmy atmosphere characteristic of a tropical winter.
Weather in January
January weather in Cilacap, Indonesia sets the pace for the rest of the year. The city experiences warm weather with humidity levels peaking as high as 79%. During this month, the city gets to experience rainfall amounting to 150mm (5.91") on average. Weather in January »
Weather in February
In February, weather in Cilacap sees a small but notable decrease in rainfall from January, with no significant changes in other weather parameters. Residents find the weather conditions to be similar to those from the previous month, making it another typically tropical period in the calendar. Weather in February »
Weather in March
The weather in Cilacap in March remains warm, with consistent metrics from the next month. The city experiences another increase in rainfall levels, reaching 152mm (5.98"), making it slightly wetter than February. As a result, the relative humidity percentage maintains a high level, adding a muggy feel to the air and creating an atmosphere ideal for tropical vegetation. Weather in March »
Weather in April
During April, the weather in Cilacap, Indonesia becomes drier, resulting in slightly less rainfall compared to March. The average high temperature goes down marginally, making the overall weather conditions less extreme than those experienced in the previous months. Weather in April »
Weather in May
May in Cilacap is a period of transition when rainfall decreases but the overall balance of the weather characteristics remains on the warmer side. The city observes a slightly lower average low temperature relative to April, marking a noticeable dip from the weather highs of the past months. Weather in May »
Weather in June
June brings in a noticeable shift in Cilacap's weather, with the city experiencing the lowest rainfall level it has seen in the first half of the year. The average high temperature also declines marginally, making this month slightly cooler than May. Weather in June »
Weather in July
In July, Cilacap witnesses further reduction in rainfall levels, continuing the drier trend set in June. Virtually all the climatic conditions follow the patterns set in June including temperatures, relative humidity, daylight, UV, visibility, cloud percentage, and atmospheric pressure. Weather in July »
Weather in August
August is the driest month in Cilacap with rainfall levels dropping to a yearly low of 36mm (1.42"). The average high and low temperatures remain steady, making the weather decidedly comfortable relative to earlier months. In line with this, the relative humidity also falls slightly offering a respite from the mugginess that pervades the city most of the year. Weather in August »
Weather in September
September in Cilacap brings a small increase in rainfall but is otherwise fairly consistent with the weather pattern in August. The relative humidity remains the same while temperatures go up marginally, keeping the city's overall climate on the warmer side. Weather in September »
Weather in October
In October, weather conditions in Cilacap proceed to gear up for the final phases of the year. A notable change is the increase in rainfall, with moisture levels returning to their triple-digit figures at 94mm (3.7"). Even with this increase in precipitation, the average high temperature remains unchanged, cementing the city's tropical climate profile. Weather in October »
Weather in November
In November, Cilacap gatherings pace towards the end of the year with slightly higher temperatures. The destination experiences amplified rainfall, jumping to 149mm (5.87"), making its weather noticeably wetter than October. The relative humidity stays at a constant level, adding to the overall moist and warm character of the weather. Weather in November »
Weather in December
Concluding the year in Cilacap, the weather in December shows no significant change from November. Rainfall slightly decreases from the shower experienced in November, transitioning the city into a slightly drier period. The average high temperature continues the pattern from the previous month, sealing the year with balmy conditions. Weather in December »
[Resources]Frequently asked questions
What is the least humid month in Cilacap?
January, March and December, with an average relative humidity of 79%, are the least humid months in Cilacap, Indonesia.
How many days does it rain in Cilacap?
Throughout the year, in Cilacap, there are 280.3 rainfall days, and 1371mm (53.98") of precipitation is accumulated.
What are the months with the highest UV index in Cilacap?
January through June, October through December, with an average maximum UV index of 7, are months with the highest UV index.
What month has the most sunshine in Cilacap?
February has the most sunshine of the year in Cilacap, Indonesia, with an average of 9.9h of sunshine.
What is the hottest time of year in Cilacap?
March, recording an average high temperature of 29.5°C (85.1°F) and a low temperature of 25.3°C (77.5°F), is Cilacap's warmest month.
What is the wettest month in Cilacap?
March is the month with the most rainfall in Cilacap. Rain falls for 24.6 days and accumulates 152mm (5.98") of precipitation.
What are the most humid months in Cilacap?
June and July, with an average relative humidity of 82%, are most humid months.
What is the month with the shortest days in Cilacap?
The month with the shortest days in Cilacap is June, with an average of 11h and 42min of daylight.
What is the month with the least sunshine in Cilacap?
The months with the least sunshine in Cilacap are July and November, with an average of 7.6h of sunshine.
What is the month with the lowest UV index in Cilacap?
The months with the lowest UV index are July through September, with an average maximum UV index of 6.
What time of the year is the coldest in Cilacap?
Cilacap's coldest weather arrives in August, when temperatures average a high of 27°C (80.6°F) and a low of 23°C (73.4°F).
What is the driest month in Cilacap?
The month with the least rainfall in Cilacap, Indonesia, is August, when the rain falls for 20.3 days and typically collects 36mm (1.42") of precipitation.
When are the longest days in Cilacap?
December has the longest days of the year, with an average of 12h and 36min of daylight.
Is there Daylight Saving Time (DST) in Cilacap?
Cilacap, Indonesia, does not observe Daylight Saving Time (DST). WIB timezone is used over the entire year.
Average temperature
Cilacap, Indonesia
The warmest month (with the highest average high temperature) is March (29.5°C).
The month with the lowest average high temperature is August (27°C).
The months with the highest average low temperature are January and May (25.4°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure
Cilacap, Indonesia
- Average pressure in January:
1009.4mbar - Average pressure in February:
1009.7mbar - Average pressure in March:
1009.9mbar - Average pressure in April:
1010mbar - Average pressure in May:
1010.2mbar - Average pressure in June:
1010.8mbar
- Average pressure in July:
1011.4mbar - Average pressure in August:
1011.9mbar - Average pressure in September:
1012mbar - Average pressure in October:
1011.2mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1009.2mbar
The month with the highest atmospheric pressure is September (1012mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed
Cilacap, Indonesia
- Average wind speed in January:
11.5km/h - Average wind speed in February:
9.6km/h - Average wind speed in March:
8.9km/h - Average wind speed in April:
9.2km/h - Average wind speed in May:
12.7km/h - Average wind speed in June:
14.2km/h
- Average wind speed in July:
16.7km/h - Average wind speed in August:
17.1km/h - Average wind speed in September:
15.2km/h - Average wind speed in October:
13.1km/h - Average wind speed in November:
10.2km/h - Average wind speed in December:
10.2km/h
The windiest month (with the highest average wind speed) is August (17.1km/h).
The calmest month (with the lowest average wind speed) is March (8.9km/h).
Average humidity
Cilacap, Indonesia
The months with the highest relative humidity are June and July (82%).
The months with the lowest relative humidity are January, March and December (79%).
Average rainfall
Cilacap, Indonesia
- Average rainfall in January:
150mm - Average rainfall in February:
121mm - Average rainfall in March:
152mm - Average rainfall in April:
145mm - Average rainfall in May:
143mm - Average rainfall in June:
123mm
The wettest month (with the highest rainfall) is March (152mm).
The driest month (with the least rainfall) is August (36mm).
Average rainfall days
Cilacap, Indonesia
- Average rainfall days in January:
25.6 days - Average rainfall days in February:
23.7 days - Average rainfall days in March:
24.6 days - Average rainfall days in April:
25.7 days - Average rainfall days in May:
25.5 days - Average rainfall days in June:
21.1 days
- Average rainfall days in July:
21.2 days - Average rainfall days in August:
20.3 days - Average rainfall days in September:
19.1 days - Average rainfall days in October:
23.9 days - Average rainfall days in November:
25.5 days - Average rainfall days in December:
24.1 days
The month with the highest number of rainy days is April (25.7 days).
The month with the least rainy days is September (19.1 days).
Average daylight / Average sunshine
Cilacap, Indonesia
- Average daylight in January:
12h and 3min - Average daylight in February:
12h and 2min - Average daylight in March:
12h and 1min - Average daylight in April:
11h and 5min - Average daylight in May:
11h and 5min - Average daylight in June:
11h and 4min
- Average daylight in July:
11h and 4min - Average daylight in August:
11h and 5min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 2min - Average daylight in November:
12h and 3min - Average daylight in December:
12h and 4min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in January:
9h and 3min - Average sunshine in February:
9h and 5min - Average sunshine in March:
8h and 5min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
7h and 4min - Average sunshine in August:
8h and 0min - Average sunshine in September:
8h and 0min - Average sunshine in October:
7h and 5min - Average sunshine in November:
7h and 4min - Average sunshine in December:
7h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The months with the least sunshine are July and November (Average sunshine: 7h and 36min).
Average sunshine days
Cilacap, Indonesia
- Average sunshine days in January:
4.8 days - Average sunshine days in February:
3.8 days - Average sunshine days in March:
5.5 days - Average sunshine days in April:
3.5 days - Average sunshine days in May:
2.3 days - Average sunshine days in June:
4.7 days
- Average sunshine days in July:
3.6 days - Average sunshine days in August:
3.8 days - Average sunshine days in September:
4.2 days - Average sunshine days in October:
3.6 days - Average sunshine days in November:
3.3 days - Average sunshine days in December:
5.7 days
The month with the most sunshine days is December (5.7 days).
The month with the least sunshine days is May (2.3 days).
Average UV index
Cilacap, Indonesia
The months with the highest UV index are January, February, March, April, May, June, October, November and December (UV index 7).
The months with the lowest UV index are July, August and September (UV index 6).
Average cloud cover
Cilacap, Indonesia
The month with the most cloud cover is December (Cloud cover 49).
The months with the least cloud cover are April and May (Cloud cover 40).
Average visibility
Cilacap, Indonesia
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Cilacap, Indonesia
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