Last updated: January 18, 2025
The climate of Anosy, Madagascar, is predominantly characterized by Koppen-Geiger classifications Cfa (humid subtropical) and Af (tropical rainforest). With a minimum temperature dipping to a chilly 6°C (42°F) in July, the region experiences an average temperature of 22°C (72°F) year-round. The warmest month is February, where temperatures can soar to a sweltering 39°C (102°F). This unique climate profile not only shapes the local ecosystems but also influences the livelihoods of its inhabitants, underscoring the interrelation between temperature dynamics and environmental sustainability in Anosy.
In Anosy, Madagascar, temperature patterns exhibit a clear seasonal progression, with the warmest months occurring from January to March. During this period, minimum temperatures hover between 15°C (59°F) and 16°C (60°F), with average highs consistently reaching 25°C (77°F), peaking in February at a maximum of 39°C (102°F). As the seasons transition into April and May, a notable cooling trend emerges, marked by decreasing minimums that drop to 9°C (48°F) in May, while maximum temperatures remain above 30°C (86°F). The months of June and July experience the coolest conditions, with July recording a minimum temperature of 6°C (42°F), before the climate gradually warms again in August and September, although extremes can still occur, like the 37°C (98°F) maximum in September. As the year progresses toward December, temperatures stabilize, characterized by mild minimums and averages, ultimately resetting for the cyclical warmth of the new year.
In July, Ambalasoa experiences a minimum temperature of 6°C (42°F) and a maximum of 35°C (95°F) in October, making its climate quite variable throughout the year, as detailed in monthly temperatures in Ambalasoa. Amboasary, on the other hand, has slightly warmer conditions with a minimum of 7°C (45°F) in July and peaks at 39°C (102°F) in February, as shown in monthly temperatures in Amboasary. Tolanaro features milder temperatures, with a minimum of 14°C (57°F) in July and a maximum of 32°C (90°F) in February, highlighted in monthly temperatures in Tolanaro.
Anosy, Madagascar demonstrates distinct precipitation patterns, predominantly marked by significant rainfall from January to March. January leads the monthly totals with 149 mm (5.9 in), highlighting the wet season's peak. As February and March follow closely, they record 138 mm (5.4 in) and 122 mm (4.8 in) respectively, with rainfall typically occurring over several days—15 days in February and up to 16 days in March. This extended rainy period fosters lush vegetation and sustains the region's biodiversity, creating a vibrant ecosystem.
In contrast, the months from April to August witness a marked decrease in precipitation, characterized by the dry season. April sees a sharp drop to 54 mm (2.1 in) and only 9 rainy days, while May yields just 27 mm (1.0 in) across 5 days. The driest month occurs in August, with only 15 mm (0.6 in), making it a significant transition period. However, as the year progresses into October and November, rainfall begins to pick up again, culminating in 77 mm (3.0 in) for November, setting the stage for the return of the wetter months in December with 124 mm (4.9 in). This cyclical pattern of wet and dry seasons greatly influences both agriculture and water resource management in the region.
In Anosy, Madagascar, sunshine duration follows a distinct seasonal rhythm, with notable peaks typically occurring during the latter part of the year. Starting with 303 hours in January, there is a steady upward trend through the following months, culminating in 346 hours in March, which marks the transition toward longer daylight periods. A slight dip is observed in June to 298 hours, coinciding with the cooler season when the region experiences its least sunshine. However, as winter gives way to spring, the sunshine hours rebound, reaching 388 hours by December. This robust increase represents not only the longer days but also the region's gradual warming as it approaches the peak of its hot season.
The months of October and November experience particularly high sunshine, with 363 hours and 362 hours respectively, showcasing optimal conditions for various forms of outdoor activities and agricultural planning. The peak in December, at 388 hours, signals the onset of the hottest part of the year, offering ample sunlight that supports diverse ecological systems and enhances local livelihoods. Conversely, the earlier months of the year, while starting strong, show a gradual decrease in sunlight as the wet season progresses. These patterns underscore the significance of sunshine duration in influencing weather-related activities and agricultural cycles within Anosy.
The UV Index in Anosy, Madagascar, displays significant seasonal variations, with extremely high levels occurring predominantly from January through April. During these months, the UV Index peaks, reaching values of 16 to 17, indicating an extreme exposure category with a dangerously short burn time of just 10 minutes. This period is particularly crucial for outdoor activities, as the high UV radiation can lead to skin damage in a matter of minutes. Even as the sun's intensity decreases slightly in May with an index of 9, it still falls within the very high exposure category, suggesting that caution is warranted when spending extended time outdoors.
As the year progresses into the cooler months of June and July, the UV Index lowers to 7, categorized as high, and extending the safe exposure time to 25 minutes. This provides a brief respite from the extreme conditions observed earlier in the year. However, September through December sees a resurgence in UV levels, peaking again in the extreme category, with minimal burn times across the board. These fluctuations highlight the importance of monitoring UV levels year-round in Anosy, advising residents and visitors alike to take protective measures during periods of heightened exposure to safeguard their health while enjoying the region's abundant sunshine.
UV Risk Categories
In Anosy, Madagascar, daylight duration exhibits a cyclical pattern that reflects the subtropical location of the region. The year begins with longer days in January, offering 13 hours of daylight, which gradually decreases to 10 hours by May. This reduction in daylight corresponds with the cooler months and the onset of the dry season, creating a notable shift in the daily rhythm for both inhabitants and local ecosystems. The consistent decline in daylight hours extends through June and July, where the duration remains stable at 10 hours, indicating the peak of winter.
As spring approaches, daylight duration begins to increase again, with August and September each providing 11 hours of sunlight. October heralds a return to longer days, restoring daylight to 12 hours, and this length continues through the final months of the year, peaking back at 13 hours in November and December. This gradual transition from shorter to longer days not only impacts local agricultural practices and wildlife behavior but also influences cultural activities, highlighting the connection between light, life, and the seasonal changes in Anosy.
Ambalasoa, Madagascar experiences a tropical climate characterized by warm temperatures and significant seasonal rainfall. January and February are the hottest months, with maximum temperatures reaching up to 33°C (91°F) and substantial precipitation of 180 mm (7.1 in) and 147 mm (5.8 in) respectively. The cooler months from May to August see lower temperatures, dipping to around 6°C (42°F) in July, and minimal rainfall, especially in July and August with only 3 mm (0.1 in) of precipitation. The year is marked by plentiful sunshine, peaking in October with 365 hours. For more details, visit Ambalasoa climate.
The climate in Amboasary, Madagascar, features a tropical pattern characterized by warm temperatures year-round. January and February experience the highest maximum temperatures, reaching up to 39°C (102°F), while July is the coolest month with a minimum of 7°C (45°F). Precipitation is significant from January to March, tapering off during the drier months of May through August. Amboasary enjoys ample sunshine, with December recording the highest hours at 390. For more details, visit Amboasary climate.
Tolanaro, Madagascar experiences a tropical climate characterized by warm temperatures throughout the year. Average monthly temperatures range from 20°C (68°F) in July to 25°C (78°F) in the warmer months of January and February. The region sees significant rainfall, particularly from March (173 mm) to December, with the wettest months being January and March. Despite the precipitation, Tolanaro enjoys ample sunshine, with October boasting the highest hours at 360. For more details, visit Tolanaro climate.
In conclusion, Anosy, Madagascar, presents a dynamic climate characterized by distinct seasonal variations in temperature, precipitation, sunshine duration, UV Index, and daylight hours. The interplay of these factors shapes the region's ecological health, agricultural productivity, and cultural practices. With hot and humid summers leading into cooler and drier months, understanding these climatic patterns is essential for effective resource management and protection against environmental challenges. As the region continues to navigate the complexities of its climate, awareness and adaptation strategies will play a crucial role in sustaining the vibrant ecosystems and livelihoods that depend on them.