January Weather in Antananarivo, Madagascar

Last updated: August 21, 2025

In January, Antananarivo, Madagascar experiences warm and humid weather, with maximum temperatures reaching 31°C (89°F) and an average of 21°C (70°F). The month is marked by considerable rainfall, totaling 204 mm (8.0 in), spread across 18 days, contributing to an overall humidity level of 88%. Visitors can expect a lush, vibrant environment, but should prepare for frequent showers that characterize this dynamic tropical climate.

January Temperature in Antananarivo

In Antananarivo, Madagascar, January marks the height of summer, featuring a pleasant average temperature of 21°C (70°F). During this month, temperatures can fluctuate significantly, with minimums dipping to 14°C (57°F) and peaks soaring to a balmy 31°C (89°F). Notably, the warmth begins to wane slightly as the season shifts to February, while still holding steady with a constant average of 21°C and similar maximum highs. As the months progress into March and April, a gradual decline emerges, with March bringing a maximum of 29°C (84°F) and April continuing this trend, showcasing cooler evenings with lows reaching 11°C (53°F). The dry winter months from May to July see even cooler averages, while the temperatures warily reclaim warmth in the following months. Overall, Antananarivo's January climate embodies the vibrant energy of summer, setting the stage for the temperate variety that defines the city's yearly rhythm.

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

The chart illustrates January temperature patterns in Antananarivo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Antananarivo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec707069676359575962677070
Data source: Temperature data for Antananarivo 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 Antananarivo

In January, Antananarivo experiences a significant amount of rainfall, with 204 mm (8.0 in) falling over 18 days. This marks a peak in the rainy season, as February follows closely with even higher precipitation at 239 mm (9.4 in). Interestingly, March sees a slight decline to 197 mm (7.8 in) but remains above the dry months ahead. As the year progresses, rainfall diminishes dramatically, plummeting to just 49 mm (1.9 in) in April and dwindling further into the dry season, highlighted by a near-absence of rain in May with only 8 mm (0.3 in) recorded across a mere single day. This sharp transition from the wet, lush conditions of early summer toward the arid months showcases Antananarivo's distinct climatic patterns, where the majority of rainfall occurs in the first three months of the year, setting the stage for the much drier conditions that follow.

January Precipitation Trends in Antananarivo

The chart displays monthly precipitation patterns in Antananarivo, 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 Antananarivo, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2042391974982212572477133
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Antananarivo

In January, Antananarivo experiences its peak humidity at a noteworthy 88%, setting the tone for a month that feels both warm and damp. As the season transitions into February and March, humidity remains high, though it begins to slightly decline to 87% and 86% respectively, hinting at a gradual shift towards more comfortable conditions. This downward trend continues into the following months, with April and May seeing humidity levels drop to 77% and 75%. By June and July, a further decrease stabilizes the humidity around 74%, offering a taste of relief as the cooler months approach. As the year progresses, a notable dip occurs in August at 68%, marking one of the most pleasant periods before humidity edges back up in the fall months of September and October. Ultimately, November and December bring a slight resurgence, with humidity rising back to 74% and 83%, reminding residents that the warm, lush atmosphere of Madagascar is ever-present, even as the year draws to a close.

January Average Humidity in Antananarivo

This chart illustrates the average monthly humidity levels in Antananarivo, 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 Antananarivo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%86%77%75%74%74%68%66%67%74%83%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Antananarivo

In January, Antananarivo experiences a striking UV Index of 17, categorizing it in the extreme exposure range, with a rapid burn time of just 10 minutes. This high level of UV radiation persists into February, maintaining the same extreme index and burn time, underscoring the importance of sun protection during this period. As the seasons shift towards the end of summer, the UV Index gradually decreases, dropping to 15 in March and 12 in April, yet remains classified as extreme. By May, the index declines further to 10, transitioning into the very high category, though the burn time increases slightly to 15 minutes. Notably, from June to July, the UV levels steady at around 8 to 9 before increasing again in August and returning to extreme levels by November. This trend highlights the need for vigilance against sun exposure in summer months and suggests that visitors to Antananarivo should be particularly cautious in January. For more information, check out the Antananarivo UV Index.

Maximum UV Index Levels in Antananarivo for January

The chart shows the monthly maximum UV Index (UVI) for Antananarivo 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 Antananarivo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1717151210891113131416
Data source: Antananarivo 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 Antananarivo

In January, Antananarivo basks in a generous 255 hours of sunshine, a warm welcome to the new year. As the months progress, the city's sunlit hours steadily increase, peaking in October with an impressive 349 hours. February and March also enjoy notable brightness, with 289 and 320 hours respectively, creating an inviting atmosphere for outdoor exploration. The sunshine begins to dwindle slightly in the cooler months of June and July but remains vibrant throughout the year, with the city averaging over 300 hours from April to November. As the year closes, December echoes the sun's prominence with 346 hours, capping off a year rich in glorious sunlight and promising warmth.

Monthly Sunshine Duration in Antananarivo: January Highlighted

The January sunshine duration represents the total number of hours Antananarivo 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.
JanFebMarAprMayJunJulAugSepOctNovDec255h289h320h304h303h284h298h313h321h349h338h346h
Data source: Antananarivo January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Antananarivo During January

In Antananarivo, Madagascar, the likelihood of enjoying sunny weather in January stands at 32%, indicating a moderate chance of clear skies as the new year begins. This percentage mirrors a similar trend observed in March and fluctuates notably until the peak sun-filled months of October and November, where the chances increase significantly to 52% and 39% respectively. Interestingly, the sunniest months follow a clear upward trajectory from the middle of the year, with June and August also showcasing sunny probabilities of 42% and 45%. Overall, while January offers a fair chance for sunshine, the latter part of the year reveals the most promising opportunities for basking in the sun in this vibrant city.

Percentage of Sunny Days in January in Antananarivo

The chart illustrates the percentage of sunny days in Antananarivo 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 Antananarivo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%16%32%19%41%42%34%45%45%52%39%32%
Data source: Antananarivo January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Antananarivo in January

In Antananarivo, Madagascar, January welcomes an ample 13 hours of daylight, setting a bright tone for the year. As the month transitions into February and March, the daylight duration slightly diminishes to 12 hours, signaling the gradual approach of the cooler season. From there, the daylight persists at 11 hours during April through September, creating a balanced rhythm that defines the region's mid-year. Interestingly, this brief dip is countered by a return to 12 hours in October and November, before climbing back to 13 hours in December. This annual cycle emphasizes a unique pattern where the daylight duration peaks at both the beginning and end of the year, offering residents and visitors alike a generous opportunity to enjoy the island's natural beauty throughout the seasons.

Average Daylight Hours in Antananarivo for January

The chart illustrates the variation in daylight duration in Antananarivo throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 6m12h 41m12h 10m11h 38m11h 12m10h 59m11h 6m11h 28m11h 58m12h 31m12h 59m13h 14m
Data source: Antananarivo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Antananarivo

In January, the winds in Antananarivo, Madagascar, whisper gently, averaging a calm 2.4 m/s (5 mph). This idyllic start to the year sets a tranquil tone, making it perfect for outdoor exploration. As the months roll on, February and March see a slight increase, maintaining a gentle breeze at 2.7 m/s (6 mph). However, as April arrives, a noticeable shift occurs, with wind speeds rising to 3.4 m/s (8 mph), hinting at the transition towards mid-year gusts. This upward trend continues, peaking in July at 3.8 m/s (9 mph), before gradually tapering off in the last few months of the year. After July, the winds settle to a more moderate pace, fluctuating between 2.5 m/s and 3.7 m/s, reminding us of the serene beginnings as the new year approaches once again.

Average January Wind Speed in Antananarivo

The chart displays monthly wind speed patterns in Antananarivo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.4 m/s2.72.73.42.63.23.83.23.73.12.52.8
Data source: Antananarivo January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Antananarivo Compares to Other Months

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

January and February in Antananarivo exhibit quite similar weather patterns, with both months experiencing average temperatures around 21°C (70°F). However, January tends to have slightly higher maximum temperatures, reaching up to 31°C (89°F), compared to February's maximum of 31°C (88°F). Precipitation is more pronounced in February, with a total of 239 mm (9.4 in) falling over 20 days, compared to January’s 204 mm (8.0 in) over 18 days. Humidity levels are also similar, with January at 88% and February slightly lower at 87%. For a more detailed look at February's weather, you can visit Antananarivo weather in February.

In comparing the weather between January and March, we observe some similarities and slight variations. Both months feature a minimum temperature of 14°C (57°F) and an average temperature of 21°C (around 70°F). However, while January reaches higher maximum temperatures of 31°C (89°F), March's peak is slightly cooler at 29°C (84°F). Precipitation levels are comparable, with January recording 204 mm (8.0 in) over 18 days and March seeing 197 mm (7.8 in) over 19 days, indicating slightly wetter conditions in January. Humidity is also similar, with January at 88% and March at 86%. For more details on March weather, you can check Antananarivo weather in March.

January in Antananarivo features warmer temperatures, with a range from a minimum of 14°C (57°F) to a maximum of 31°C (89°F). The month is quite humid, averaging 88% humidity, and experiences significant rainfall, totaling 204 mm (8.0 in) over 18 days. In contrast, April sees slightly cooler temperatures, with minimums of 11°C (53°F) and maximums reaching 29°C (84°F). The precipitation drops dramatically to 49 mm (1.9 in) over 13 days, and humidity decreases to 77%. For more details on April's weather, visit Antananarivo weather in April.

In comparing the weather between January and May, significant differences emerge. January experiences warmer temperatures with a minimum of 14°C (57°F) and an average high of 31°C (89°F), while May is cooler, featuring a minimum of 8°C (46°F) and a maximum of 26°C (80°F). Additionally, January is characterized by high humidity at 88% and substantial precipitation of 204 mm (8.0 in) over 18 days, contrasting sharply with May's low precipitation of just 8 mm (0.3 in) on only one day and lower humidity at 75%. For more detailed information, you can visit Antananarivo weather in May.

In January, the weather is considerably warmer and more humid, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 31°C (89°F) and an average of 21°C (70°F). This month is also quite rainy, experiencing about 204 mm (8.0 in) of precipitation over 18 days, contributing to a high humidity level of 88%. In contrast, June offers a cooler climate, with temperatures dipping to a low of 5°C (42°F) and peaking at 25°C (78°F), while the average temperature sits around 15°C (59°F). June is notably drier, with only 22 mm (0.9 in) of precipitation over just 2 days, and humidity levels drop to 74%. For more detailed insights, you can check Antananarivo weather in June.

January and July present a striking contrast in weather conditions. In January, temperatures range from a mild 14°C (57°F) to a warm 31°C (89°F), with an average of 21°C (70°F). This month also sees significant rainfall, with 204 mm (8.0 in) of precipitation spread over 18 days and high humidity levels of 88%. In stark contrast, July experiences much cooler temperatures, with a minimum of 5°C (41°F) and an average of 14°C (57°F), peaking at 25°C (77°F). Additionally, July is quite dry, receiving only 11 mm (0.5 in) of precipitation over a mere 1 day, along with a lower humidity of 74%. For more detailed insights on July weather, you can check Antananarivo weather in July.

In January, the weather is warm and humid, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 31°C (89°F). This month experiences significant rainfall, with about 204 mm (8.0 in) of precipitation over 18 days, resulting in a high humidity level of 88%. In contrast, August brings much cooler temperatures, with averages ranging from a minimum of 5°C (42°F) to a maximum of 27°C (80°F). The precipitation dramatically decreases to just 5 mm (0.2 in) over a single day, and humidity drops to a more comfortable 68%. For a comprehensive look at August weather, visit Antananarivo weather in August.

In January, the weather is typically warm and humid, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 31°C (89°F) and an average of 21°C (70°F). The month experiences significant rainfall, totaling 204 mm (8.0 in) over 18 days, contributing to a high humidity level of 88%. In contrast, September is much cooler and drier, featuring temperatures that vary from a minimum of 8°C (47°F) to a maximum of 29°C (85°F), with an average temperature of 17°C (62°F). Precipitation drops dramatically to just 7 mm (0.3 in) over a single day, and humidity decreases to a more comfortable 66%. For more detailed information, you can check Antananarivo weather in September.

In January, the weather is significantly warmer and more humid, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 31°C (89°F). This month also experiences considerable rainfall, averaging 204 mm (8.0 in) over 18 days, making the air feel quite muggy with a humidity level of 88%.

In contrast, October brings cooler temperatures with a minimum of 9°C (49°F) and a comfortable average of 19°C (67°F), while still reaching up to 32°C (90°F) at its peak. Precipitation in October is markedly lower, with only 24 mm (0.9 in) falling over just 5 days, resulting in a much drier atmosphere and a reduced humidity of 67%.

For more detailed information about October weather, you can visit Antananarivo weather in October.

In January, temperatures in Antananarivo typically range from a minimum of 14°C (57°F) to a maximum of 31°C (89°F), accompanied by considerable precipitation of 204 mm (8.0 in) over 18 days and high humidity at 88%. In contrast, November boasts slightly cooler nights with a minimum of 12°C (53°F) but maintains a comparable average temperature of 21°C (70°F) and a peak of 32°C (89°F). Notably, November experiences significantly less rainfall, with only 77 mm (3.0 in) over 11 days and lower humidity at 74%. For more details, you can explore Antananarivo weather in November.

In January, the weather in Antananarivo shows a slightly warmer profile with minimum temperatures averaging around 14°C (57°F) and maximums reaching 31°C (89°F). The month is characterized by higher precipitation, totaling 204 mm (8.0 in) over 18 rainy days, and an increased humidity level of 88%. In contrast, December features very similar temperature ranges with a minimum of 13°C (56°F) and a maximum of 31°C (88°F), but it experiences less rain, accumulating 133 mm (5.2 in) across 16 days, and slightly lower humidity at 83%. This makes December a bit drier and more comfortable compared to the wetter and more humid conditions of January. For more details on December's weather patterns, visit Antananarivo weather in December.

Compare Antananarivo's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Antananarivo

January in Antananarivo brings a warm embrace with maximum temperatures often soaring to a balmy 31°C (89°F), contrasting significantly with the cooler months that precede and follow it. This month is characterized by a higher frequency of rainfall, with 204 mm (8.0 in) spread across 18 days, making it one of the wettest times of the year. Coupled with elevated humidity levels at 88%, the atmosphere feels notably different—sweltering during the day but pleasantly cooler in the evenings. For those seeking to understand the broader climate patterns, you can explore more in detail at Antananarivo Climate.