January Weather in Pelabuhanratu, Indonesia

Last updated: August 21, 2025

In Pelabuhanratu, Indonesia, January brings a warm tropical climate characterized by maximum temperatures reaching up to 30°C (86°F) and a comfortable average of 24°C (76°F). With minimum temperatures around 21°C (71°F), residents and visitors experience mild evenings. However, this month is also marked by significant precipitation, totaling 369 mm (14.5 in), occurring over 24 days, resulting in a high humidity level of 84%. The frequent rain showers enhance the lushness of this coastal region and provide a vibrant backdrop for outdoor activities, albeit with the need for a light raincoat handy.

January Temperature in Pelabuhanratu

In January, Pelabuhanratu, Indonesia, experiences a delightful range of temperatures that set the stage for a warm and inviting atmosphere. With minimum temperatures around 21°C (71°F) and averages hovering at 24°C (76°F), the days gradually warm, peaking at a comfortable 30°C (86°F). This month marks the beginning of a consistent trend throughout the year, where temperatures remain relatively stable with only slight fluctuations. As February rolls in, the minimum creeps up to 22°C (72°F), but averages and maximums remain steady, indicating a pleasantly warm climate throughout the early months. The resilient warmth continues as you transition through the year, establishing Pelabuhanratu as a tropical haven, making it an ideal destination for those seeking sun-soaked adventures.

January Weather in Pelabuhanratu: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Pelabuhanratu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pelabuhanratu, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec767677777877767676777776
Data source: Temperature data for Pelabuhanratu generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Pelabuhanratu

In January, Pelabuhanratu experiences significant rainfall, with a substantial 369 mm (14.5 in) of precipitation over 24 days. This marks the peak of the wet season, as the region transitions into February, where precipitation slightly decreases to 334 mm (13.1 in) but features more rainy days. Interestingly, March sees less rainfall at 315 mm (12.4 in), yet maintains a similar pattern of frequent showers. As the months progress into the drier season, May stands out with a notable drop to 202 mm (7.9 in) over just 21 days, followed by a dramatic decline in July and August, when monthly totals fall to an average of only 53 mm (2.1 in) and 42 mm (1.7 in), respectively. This pattern of fluctuating rainfall not only emphasizes the region's dynamic climate but also highlights a clear transition from the intense wetness of early months to the relative dryness of mid-year. By the time December rolls around, Pelabuhanratu returns to higher precipitation levels with 416 mm (16.4 in), showcasing the cyclical nature of its tropical climate.

January Precipitation Trends in Pelabuhanratu

The chart displays monthly precipitation patterns in Pelabuhanratu, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Pelabuhanratu, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3693343153282021435342125228329416
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Pelabuhanratu

In January, Pelabuhanratu, Indonesia, experiences a high average humidity of 84%, setting the tone for the wet season. This level remains consistent into March before peaking in February at 86%, indicative of the region’s tropical climate. As the months progress into the dry season, humidity gradually decreases, with April and May showing a slight drop to 81% and 80%, respectively. The trend continues, leading into June and July, where humidity stabilizes at around 79-80%. By late summer, humidity dips further, reaching a low of 77% from August to September. The transition into October sees a slight increase, closing the year with 79% in December. Overall, the humidity levels reflect a typical tropical pattern, highlighting both the intense moisture of the wet months and the more comfortable conditions of the dry season.

January Average Humidity in Pelabuhanratu

This chart illustrates the average monthly humidity levels in Pelabuhanratu, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Pelabuhanratu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%84%81%80%80%79%77%77%78%80%79%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Pelabuhanratu

In January, Pelabuhanratu experiences a UV Index of 15, marking the start of an extended period of extreme sun exposure that characterizes the beginning of the year. With a consistent burn time of just 10 minutes, caution is essential for those venturing outdoors. This trend of high UV levels continues into February and March, where the index peaks at 16, reinforcing the need for protective measures. Interestingly, the UV Index then dips slightly in April to 15 and again in May to 12, before stabilizing around 11 in the following months, suggesting a brief respite. However, it spikes back up to 16 in both October and November, reminding visitors and locals alike of the importance of sun safety year-round. For more detailed information about the UV Index throughout the year, check out Pelabuhanratu UV Index.

Maximum UV Index Levels in Pelabuhanratu for January

The chart shows the monthly maximum UV Index (UVI) for Pelabuhanratu in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Pelabuhanratu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151211111214161614
Data source: Pelabuhanratu January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Pelabuhanratu

In January, Pelabuhanratu greets the new year with 223 hours of sunshine, setting the stage for a month that gradually brightens. As winter fades, the sun starts to assert itself, leading to 265 hours in February and a steady climb through the spring. By March, residents and visitors bask in 299 hours, reaching a delightful peak of 308 hours in May. The summer months are particularly radiant, with July and August shining with 318 and 321 hours, respectively. As the year progresses towards its end, sunshine remains abundant, recording robust hours in September and October—a gentle decline to 274 hours in November and 270 hours in December, yet the overall trend reflects a vibrant, sun-kissed optimism throughout the year.

Monthly Sunshine Duration in Pelabuhanratu: January Highlighted

The January sunshine duration represents the total number of hours Pelabuhanratu experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec223h265h299h290h308h299h318h321h305h304h274h270h
Data source: Pelabuhanratu January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Pelabuhanratu During January

In Pelabuhanratu, January brings a slim chance of sunshine, with only 3% likelihood of clear skies gracing the coastal town. This marks the beginning of a gradual increase towards sunnier days, as the region begins to transition into the drier months. By February, the chance of sun doubles to 6%, and by March it climbs to 8%. However, the real shift occurs in April, where the likelihood leaps to 29%, signaling the start of a much brighter season that peaks in the heart of summer. The months that follow show a notable rise in sunshine enjoyment, particularly in July and August, which boast 44% and 35% chances, respectively. Thus, while January's sun-soaked days may be few, the anticipation for clearer skies builds as the month gives way to the sunnier spring and summer months ahead.

Percentage of Sunny Days in January in Pelabuhanratu

The chart illustrates the percentage of sunny days in Pelabuhanratu throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Pelabuhanratu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec3%6%8%29%33%23%45%35%25%19%3%8%
Data source: Pelabuhanratu January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Pelabuhanratu in January

In Pelabuhanratu, Indonesia, January ushers in a consistent 12 hours of daylight, a trend that persists through February and March, making these months ideal for exploration and enjoying the great outdoors. As April arrives, the daylight begins to wane slightly, dropping to 11 hours, a pattern that continues through the summer months until August. Interestingly, as the year turns towards September, daylight hours bounce back to a comfortable 12 hours once again, maintaining this equilibrium through the end of the year. This fluctuation between 11 and 12 hours highlights Pelabuhanratu’s tropical climate, creating a rhythm of light that supports both leisure activities and the vibrant lifestyle of its residents.

Average Daylight Hours in Pelabuhanratu for January

The chart illustrates the variation in daylight duration in Pelabuhanratu throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 27m12h 18m12h 7m11h 55m11h 46m11h 42m11h 44m11h 52m12h 3m12h 14m12h 25m12h 30m
Data source: Pelabuhanratu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Pelabuhanratu

In January, the coastal charm of Pelabuhanratu, Indonesia is accompanied by a gentle breeze, with an average wind speed of 2.5 m/s (5 mph). This early month marks a transition, as the wind begins to pick up slightly from December, setting the stage for the months ahead. Following January, February sees a slight increase in wind speed, reaching 2.6 m/s. However, as the year progresses into the warmer months of March and May, wind speeds dip briefly, showcasing a lull before an invigorating surge in August, when the average climbs to 2.8 m/s. This seasonal pattern highlights the dynamic nature of Pelabuhanratu’s winds, which are generally calm yet occasionally clasp the shores with refreshing vigor, inviting both locals and travelers to enjoy the allure of the ocean breeze throughout the year.

Average January Wind Speed in Pelabuhanratu

The chart displays monthly wind speed patterns in Pelabuhanratu, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.5 m/s2.61.82.21.81.52.32.82.72.72.01.8
Data source: Pelabuhanratu January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Pelabuhanratu Compares to Other Months

Weather in Pelabuhanratu varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Pelabuhanratu, focusing on differences in temperature, rainfall, humidity, and UV levels.

January and February in Pelabuhanratu exhibit similar warmth, with both months experiencing average maximum temperatures of 30°C (86°F). However, January tends to be slightly cooler with an average temperature of 24°C (76°F), compared to February's average of 25°C (76°F). Precipitation levels are also noteworthy; January receives 369 mm (14.5 in) over 24 days, while February sees a bit less with 334 mm (13.1 in) across 27 days. Humidity levels are comparable, with January at 84% and February slightly higher at 86%. For a detailed look at February weather, check out Pelabuhanratu weather in February.

In January, temperatures typically range from a low of 21°C (71°F) to a high of 30°C (86°F), with an average of 24°C (76°F). This month experiences significant rainfall, accumulating around 369 mm (14.5 in) over 24 days, while maintaining a high humidity level of 84%.

In contrast, March brings slightly warmer weather with an average temperature of 25°C (77°F), while still seeing minimums of 21°C (70°F) and maximums remaining steady at 30°C (86°F). Rainfall decreases to approximately 315 mm (12.4 in) but increases in the number of rainy days to 28, keeping humidity constant at 84%.

For more details on the specific weather conditions in March, you can visit Pelabuhanratu weather in March.

In January, the weather is characterized by slightly lower temperatures, with a minimum of 21°C (71°F) and an average of 24°C (76°F), peaking at 30°C (86°F). This month experiences considerable rainfall, with 369 mm (14.5 in) over 24 days, and a high humidity level of 84%. In contrast, April sees marginally warmer temperatures with a minimum of 22°C (72°F) and an average of 25°C (78°F), remaining steady at a maximum of 30°C (87°F). Rainfall in April is slightly less, totaling 328 mm (12.9 in) over 28 days, accompanied by a bit lower humidity of 81%. For more detailed information, visit Pelabuhanratu weather in April.

In January, the weather is characterized by slightly cooler temperatures, with a minimum of 21°C (71°F) and an average of 24°C (76°F), while May sees a minimum of 22°C (72°F) and an average of 26°C (78°F). Both months experience high humidity levels—January at 84% and May at 80%—but January also brings significantly more rainfall, with 369 mm (14.5 in) over 24 days compared to May's 202 mm (7.9 in) across 21 days. Overall, while January offers slightly cooler temperatures and higher precipitation, May provides a warmer, albeit still humid, climate. For specific details on May weather, visit Pelabuhanratu weather in May.

In comparing the weather between January and June, we observe some notable differences. January typically experiences slightly higher humidity at 84% compared to June’s 80%, although both months have similar temperature ranges, with January averaging 24°C (76°F) and June 25°C (77°F). Precipitation is significantly higher in January, with 369 mm (14.5 in) spread over 24 days, while June sees only 143 mm (5.6 in) over 18 days. For more details on June's conditions, you can check out Pelabuhanratu weather in June.

In comparing the weather between January and July, we see notable differences despite both months experiencing similar maximum temperatures of 30°C (86°F). January is characterized by higher humidity at 84% and significantly more precipitation, with 369 mm (14.5 in) falling over 24 days. In contrast, July enjoys a slightly warmer minimum temperature of 19°C (67°F) and significantly less rainfall, totaling only 53 mm (2.1 in) over 8 days, making it a much drier month. Overall, July offers a more pleasant and comfortable climate compared to the wet and humid January. For specific details on July weather, you can visit Pelabuhanratu weather in July.

In January, the weather is characterized by a warmer and more humid atmosphere, with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 30°C (86°F). This month also witnesses significant rainfall, with 369 mm (14.5 in) of precipitation over 24 days, resulting in a humidity level of 84%. In contrast, August experiences slightly cooler temperatures, with a minimum of 19°C (66°F) and the same maximum of 30°C (86°F). Precipitation drops dramatically to 42 mm (1.7 in) over just 8 days, leading to a more comfortable humidity level of 77%. For a detailed look at the weather in August, visit Pelabuhanratu weather in August.

In January, the weather tends to be warmer and more humid compared to September, with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 30°C (86°F) and an average of 24°C (76°F). This month also experiences significant precipitation, totaling 369 mm (14.5 in) over 24 days, leading to a humidity level of 84%. In contrast, September offers slightly cooler temperatures with a minimum of 20°C (68°F), an average of 25°C (76°F), and similar maximums at 30°C (87°F). Additionally, rainfall in September is considerably less, at 125 mm (4.9 in) over just 13 days, resulting in lower humidity at 77%. For a detailed look at the weather trends, check out Pelabuhanratu weather in September.

In January, temperatures in Pelabuhanratu typically range from a minimum of 21°C (71°F) to a maximum of 30°C (86°F), with an average temperature of about 24°C (76°F). This month also experiences significant rainfall, totaling 369 mm (14.5 in) over approximately 24 days, accompanied by high humidity at 84%. In contrast, October sees slightly milder temperatures, with a minimum of 20°C (69°F) and a maximum of 31°C (88°F), averaging 25°C (77°F). Rainfall is less intense during this time, totaling 228 mm (9.0 in) across approximately 21 days, and humidity drops to a more comfortable 78%. For a detailed look at October weather in Pelabuhanratu, visit Pelabuhanratu weather in October.

In comparing the weather between January and November, both months exhibit warm temperatures with minimal variations. January records a minimum temperature of 21°C (71°F), averaging 24°C (76°F) and peaking at 30°C (86°F). In contrast, November has a slightly higher average temperature of 25°C (77°F), with maximums reaching up to 32°C (89°F). Precipitation is significant in both months, with January receiving 369 mm (14.5 in) over 24 days, compared to November's 329 mm (13.0 in) spread across 25 days. Humidity levels are also high, though slightly lower in November at 80%, compared to January's 84%. For more detailed information, you can check Pelabuhanratu weather in November.

January and December exhibit quite similar temperatures, with both months averaging around 24°C (76°F). However, January tends to be slightly drier, with a total precipitation of 369 mm over 24 days compared to December's 416 mm over 29 days. Additionally, January's humidity is slightly higher at 84% compared to December’s 79%, which can make the air feel a bit more oppressive. For more detailed weather information, you can check Pelabuhanratu weather in December.

Compare Pelabuhanratu's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Pelabuhanratu

In January, Pelabuhanratu experiences a distinctively humid and wet climate, standing out from other months with its higher average temperatures and substantial rainfall. The frequent precipitation, occurring on nearly every day, creates a vibrant landscape, but it does mean that outdoor activities might be interrupted. With an average temperature around a comfortable 24°C, the warmth is palpable, yet the humidity can make it feel more intense. For those looking to understand the broader climatic patterns of this beautiful destination, more detailed insights can be found at Pelabuhanratu Climate.