Last updated: August 21, 2025
January in Semarang, Indonesia is characterized by a warm and humid tropical climate. With average temperatures hovering around 27°C (80°F) and maximum highs reaching 32°C (90°F), the month presents a balmy atmosphere. However, residents and visitors should be prepared for significant rainfall, as total precipitation can reach up to 370 mm (14.6 in) across approximately 24 days. The humidity remains high, at around 82%, amplifying the tropical feel of the month. Whether you’re exploring the local culture or enjoying the vibrant scenery, January's weather offers a typical yet captivating experience of Semarang's tropical charm.
In Semarang, Indonesia, January ushers in warm and tropical weather, perfect for those seeking a bit of sunshine. With minimum temperatures hovering around 22°C (73°F) and a pleasant average of 27°C (80°F), the month offers a comfortable escape from winter chills. Highs peak at a scorching 32°C (90°F), setting the stage for sizzling days that invite exploration. As the month progresses into February, temperatures rise, showcasing the region's consistent warmth with a maximum of 34°C (93°F); however, January remains a sweet spot for warmth without the extreme heat that follows. This trend of rising temperatures continues through the year, but January's balmy climate stands out as an ideal time to enjoy Semarang's vibrant culture and stunning landscapes.
January in Semarang, Indonesia, is characterized by significant rainfall, registering an impressive 370 mm (14.6 in) over 24 rainy days. This sets the tone for the wet season, as precipitation remains high into February, which sees an increase to 395 mm (15.6 in). Following a slight decrease in March, the precipitation drops sharply in April to 227 mm (9.0 in), indicating a shift toward drier conditions. As the region transitions into late spring and summer, rainfall continues to decline dramatically, with May and June averaging just 86 mm (3.4 in) and 78 mm (3.1 in), respectively. The contrast is stark, as the dry months like July and August see substantial reductions in rain, with only 23 mm (0.9 in) and 13 mm (0.5 in) falling over just a few days. As the year progresses, September brings a slight uptick before the wet season resumes, culminating in November's 294 mm (11.6 in), leading to a rich tapestry of wet and dry periods that define Semarang’s climate.
In January, Semarang experiences a high humidity level of 82%, setting the tone for a tropical start to the year. This month marks the beginning of a trend toward slightly increasing humidity, peaking at 86% in February. As we transition into spring, humidity levels fluctuate moderately, easing to 84% in March before gradually dropping to 80% in April. This slight decline continues, with relatively stable levels around 81% through May and June. By mid-year, Semarang’s humidity begins to decrease more noticeably, reaching its lowest point of 70% in September before hovering between 70% and 75% in the following months. Altogether, January’s humidity level hints at the lush and vibrant environment that characterizes this coastal city, while also marking the start of a gradual decrease leading into the latter part of the year.
In January, Semarang, Indonesia, experiences an extreme UV Index of 14, indicating a serious need for sun protection as the burn time is a quick 10 minutes. As the month progresses into February and March, the UV Index increases slightly to 15, maintaining the extreme exposure category. This trend continues with an unwavering burn time of just 10 minutes across these months, underscoring the importance of cautious sun exposure. Moving into April and May, the UV Index dips to 13 and 12, respectively, yet remains in the extreme category with the same rapid burn time. The pattern shifts slightly in June and July, where the Index settles at a still significant 10, reflecting a very high exposure level and extending the burn time to 15 minutes. As the year progresses, the UV Index bounces back to extreme levels from August through November, consistently requiring swift action against sunburns with a burn time of 10 minutes. Interestingly, December closes out the year with a UV Index of 13, reiterating the ongoing need for sun safety in this tropical climate year-round. For more detailed information, visit Semarang UV Index.
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In Semarang, January ushers in the year with a charming 211 hours of sunshine, but as the months roll on, bright days multiply. The sun shines brighter in February with 260 hours, and by March, the radiant glow peaks at an impressive 299 hours. April and June maintain this sunny disposition, with almost identical hours, while May enjoys the most sunshine at 307 hours, setting a vibrant tone for the beginning of the dry season. The height of summer arrives in July and August, each boasting 317 hours, making these months a perfect time to bask in Semarang's warmth. As the year progresses into autumn, the sunshine begins to mellow slightly but remains robust, with October providing 312 hours and November offering a modest 272 hours. Despite the decrease, December still concludes the year on a bright note with 273 hours of sunlight, making Semarang a delightful destination for sun-seekers throughout the year.
In Semarang, Indonesia, January paints a rather gloomy picture for sunshine lovers, with a mere 1% chance of sunny weather this month. As the year progresses, there is a noticeable shift; by February, the likelihood increases slightly to 4%, and further climbs to 9% in March, suggesting a gradual emergence from the rainy season. The most striking transformation occurs in the following months, with a marked increase in sunshine probabilities, peaking at 52% in July—the height of the dry season. This upward trend indicates that while January may be bleak, the allure of sunny days grows substantially as Semarang transitions toward mid-year, making summer months far more enticing for those seeking warmth and light.
In Semarang, Indonesia, January marks the start of a year characterized by a consistent 12 hours of daylight, a trend that continues into February and March. As the year progresses into April through August, daylight gradually diminishes to 11 hours, creating a slightly shorter day during the mid-year months. However, as September rolls around, the sun graces Semarang once again with 12 hours of daylight, a pattern that extends through to November. By December, the daylight returns to the familiar 12-hour span, enveloping the city in a warm, balanced rhythm that showcases the beauty of its tropical climate throughout the year. This cyclical play of light and shadow highlights the region's unique equatorial standing, where daylight duration remains relatively stable, fostering a lively atmosphere for both residents and visitors alike.
In January, Semarang experiences an average wind speed of 2.2 m/s (5 mph), marking it as one of the breezier months of the year. This gentle breeze sets the stage for a transition into the slightly windier days of February, where speeds increase to 3.2 m/s (7 mph). Interestingly, as the region progresses into the heart of the year, wind speeds begin to vary more dramatically, dipping to their lowest average of 1.2 m/s (3 mph) in November. This trend illustrates a seasonal fluctuation where the winds become softer as the year winds down, providing a contrast to the more invigorating breezes of January and February. Such variations not only shape the local climate but also influence daily life in Semarang, making each month distinct in its atmospheric character.
Weather in Semarang varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Semarang, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing January and February, both months exhibit warm temperatures typical of a tropical climate, though February tends to be slightly warmer. January's temperatures range from a minimum of 22°C (73°F) to a maximum of 32°C (90°F), while February sees a higher maximum of 34°C (93°F) and an average temperature of 26°C (80°F). Precipitation is more pronounced in February, with 395 mm (15.6 in) falling over 28 days compared to January's 370 mm (14.6 in) over 24 days. Additionally, the humidity increases in February, reaching 86% compared to 82% in January, making it feel even more humid. For a more detailed overview, you can check out Semarang weather in February.
In January, the weather showcases a warm climate with temperatures ranging from a minimum of 22°C (73°F) to a maximum of 32°C (90°F) and an average of 27°C (80°F). Rainfall is significant, with 370 mm (14.6 in) of precipitation spread over 24 days, and humidity is quite high at 82%.
Conversely, March experiences slightly warmer conditions, with minimum temperatures at 23°C (73°F) and a maximum reaching 33°C (92°F), while the average remains consistent at 27°C (81°F). Precipitation is slightly lower at 365 mm (14.4 in), but the rain does occur over a greater number of days—30 in total. Humidity also increases marginally to 84%.
For a detailed look at what to expect, check out Semarang weather in March.
In January, the weather in Semarang features a warm temperature range, with minimums of 22°C (73°F) and maximums reaching up to 32°C (90°F). However, it also experiences significant rainfall, totaling 370 mm (14.6 in) over 24 days, accompanied by high humidity levels at 82%. In contrast, April sees a slightly higher maximum temperature of 34°C (93°F) while maintaining the same minimum of 22°C (73°F) and an average of 27°C (82°F). Precipitation decreases to 227 mm (9.0 in) over 26 days, with humidity slightly lower at 80%. For a detailed look at the April climate, you can check Semarang weather in April.
In January, the weather is typically warmer with temperatures ranging from a minimum of 22°C (73°F) to a maximum of 32°C (90°F), while May experiences a slightly higher range from 23°C (73°F) to 34°C (94°F). January is notably wetter, receiving 370 mm (14.6 in) of rainfall over 24 days, compared to May's more moderate 86 mm (3.4 in) over 16 days. Despite these differences, humidity levels remain similar, hovering around 81-82%. For more details on May's conditions, you can refer to Semarang weather in May.
In comparing the weather between January and June, January tends to be warmer overall, with average temperatures hovering around 27°C (80°F) and maximums reaching up to 32°C (90°F). This month also experiences significantly more precipitation, with 370 mm (14.6 in) falling over 24 days, contributing to a high humidity level of 82%. In contrast, June has slightly cooler temperatures, with an average of 28°C (82°F) and maximums peaking at 35°C (95°F). However, precipitation drops dramatically to 78 mm (3.1 in) over just 11 days, and humidity remains quite high at 81%. For additional insights into the June climate, you can visit Semarang weather in June.
In January, Semarang experiences warmer temperatures, with a minimum of 22°C (73°F), an average of 27°C (80°F), and a maximum of 32°C (90°F). The month is also characterized by high humidity at 82% and significant rainfall, totaling 370 mm (14.6 in) over 24 days. In contrast, July offers slightly cooler temperatures, with a minimum of 20°C (68°F), an average of 28°C (82°F), and a maximum of 35°C (95°F). This month sees much less precipitation, only 23 mm (0.9 in) over just 3 days, and the humidity drops slightly to 78%. For more details on July's weather, check out Semarang weather in July.
In comparing the weather between January and August, January features warmer temperatures with a minimum of 22°C (73°F) and an average of 27°C (80°F), while August has slightly cooler temperatures with a minimum of 20°C (68°F) and an average of 28°C (83°F). The maximum temperature in August can rise to 35°C (96°F), surpassing January’s maximum of 32°C (90°F). However, January experiences significantly more rainfall, with 370 mm (14.6 in) over 24 days, compared to August's minimal precipitation of only 13 mm (0.5 in) over just 2 days. Humidity levels are also higher in January at 82%, compared to 74% in August, indicating a more comfortable dry season during the latter month. For more details, check out Semarang weather in August.
In January, the weather tends to be more humid and rainy, with average temperatures ranging from a minimum of 22°C (73°F) to a maximum of 32°C (90°F). The month experiences significant precipitation, with around 370 mm (14.6 in) over 24 days, contributing to a high humidity level of 82%.
In contrast, September offers warmer and drier conditions. Temperatures increase, with a minimum of 22°C (71°F) and average highs reaching up to 36°C (97°F). Precipitation drops dramatically to just 40 mm (1.6 in) over only 6 days, and humidity decreases to 70%. For more detailed insights, you can visit Semarang weather in September.
In January, the weather is typically warm and humid, with temperatures ranging from a minimum of 22°C (73°F) to a maximum of 32°C (90°F). This month experiences substantial precipitation, averaging 370 mm (14.6 in) over 24 days, leading to a humidity level of 82%. In contrast, October offers slightly higher temperatures, with a minimum of 23°C (74°F) and a maximum soaring to 38°C (100°F). The precipitation is significantly lower at 120 mm (4.7 in) over just 14 days, and the humidity drops to a more comfortable 72%. For more specific details on weather patterns, you can check Semarang weather in October.
January and November exhibit distinct weather characteristics. In January, temperatures range from a minimum of 22°C (73°F) to a maximum of 32°C (90°F), with an average of 27°C (80°F). This month is characterized by high humidity at 82% and substantial precipitation of 370 mm (14.6 in) over 24 days. In contrast, November features slightly warmer temperatures, with a minimum of 23°C (73°F), an average of 28°C (82°F), and a maximum reaching up to 37°C (99°F). Precipitation in November is lower at 294 mm (11.6 in) over 25 days, and the humidity is notably reduced to 73%. For more details on November's weather, refer to Semarang weather in November.
In January, the weather features slightly cooler temperatures, with minimums around 22°C (73°F) and maximums reaching 32°C (90°F), compared to December's higher maximum temperature of 35°C (95°F) and a minimum of 23°C (74°F). Both months experience significant rainfall, with January receiving about 370 mm (14.6 in) over 24 days and December slightly more at 375 mm (14.8 in) across 29 days. Notably, January's humidity is higher at 82%, making it feel a bit more oppressive than December's 75%. To explore more about December's climatic conditions, you can check Semarang weather in December.
January in Semarang is marked by warm temperatures and high humidity, making it one of the wetter months of the year. With frequent rainfalls and nearly 24 days of precipitation, the atmosphere is quite humid, creating a feeling of stickiness that contrasts with the drier months before and after. Although temperatures remain comfortably warm, January's notable rainfall sets it apart, transforming the landscape into a lush, vibrant scene perfect for exploring. For a deeper understanding of the patterns that define this tropical haven, visit Semarang Climate.