Climate and monthly weather forecastAntisiranana, Madagascar
Climate and monthly weather forecast
The climate of Antisiranana
Antisiranana, a port city lying in the northern part of Madagascar, takes pride in its tropical savanna climate, scientifically known as the Aw climate under the Köppen climate classification. In this coastal town, there are no significant fluctuations in temperature. A brilliantly spread warmth is enjoyed throughout the year, with average high temperatures oscillating from 28.7°C (83.7°F) to 31.5°C (88.7°F).Although there is little variability in temperature, the amount of rainfall encountered in Antisiranana changes quite noticeably throughout the year. It has twofold characteristics: incredibly wet and pronouncedly dry. It culminates in January, distributing an average precipitation of 338mm (13.31") and decelerates to a mere 9mm (0.35") by September. Moreover, the city witnesses a gradual increase in precipitation, beginning from September until it peaks again in January.
The city experiences sunshine varying from 6.1 hours per day in February to 9.9 hours per day in October. The daylight hours are somewhat stable, with the shortest daylight of 11.4 hours in June and the longest of 12.8 hours in January. Notably, the UV index remains high at 12 from January to March and from October to December, indicating a need for protection against skin damage.
The best time to visit Antisiranana
The optimum time for tourists to explore Antisiranana would be the period between May to October. Warm temperatures are the norm during these months, ranging from 29.3°C (84.7°F) to 30.5°C (86.9°F), making it ideal for outdoor activities. More importantly, this period marks the lowered precipitation rates, from 13mm (0.51") in May to 17mm (0.67") in October, significantly reducing the probability of rain-spoiled plans. Furthermore, an increased amount of sunshine during these months allows visitors to make the most out of their daylight hours.The worst time to visit Antisiranana
Journeying to Antisiranana during the start of the year, precisely between January and February, may not prove as enjoyable. This phase showcases the heaviest rainfall, measuring 338mm (13.31") in January and 306mm (12.05") in February. Despite the high temperatures of around 30.2°C (86.4°F), the frequent showers might inhibit outdoor exploration, making it less appealing for holiday activities.Spring weather in Antisiranana
The spring in Antisiranana (March, April, May) greets citizens and visitors with a pleasant decline in rainfall and a warm temperature palette. The mercury levels dip gently from 30.6°C (87.1°F) in March to 29.3°C (84.7°F) in May. Concurrently, average rainfall drops sharply from 179mm (7.05") to a mere 13mm (0.51"), a relief from the previous month’s higher precipitation levels. Sunshine per day ascends gradually, providing more time for outdoor activities.Summer weather in Antisiranana
The summer period in Antisiranana (June, July, August) exhibits a beneficent climate with moderately warm temperatures and infrequent rainy days. With high temperatures ranging from 28.7°C (83.7°F) to 29.5°C (85.1°F), these months offer a calming retreat from the excessive heat. An average of rainless 4 days and a scarce rain volume of 19mm (0.75") in June makes summer an ideal period for activities without weather-related disruptions.Autumn weather in Antisiranana
Typically, autumn (September, October, November) introduces a slight increase in temperature and rainfall frequency. Average high temperature ranges from 29.5°C (85.1°F) in September to 31.5°C (88.7°F) in November encompass the warmth of these months. Simultaneously, the amount of rainfall sees an increase, starting from a minor 9mm (0.35") in September to 55mm (2.17") in November, subtly foreshadowing the oncoming wet season.Winter weather in Antisiranana
The winter months (December, January, February) in Antisiranana are characterized by high tropical temperatures and abundant rainfall. The region heats up to a toasty 31.4°C (88.5°F) in December before receding slightly to 30.2°C (86.4°F) by February. However, rainfall peaks dramatically in this season, with an impressive 338mm (13.31") in January. Visitors should come prepared for a combination of warmth and intense showers.Weather in January
Antsiranana in January experiences temperatures reaching a peak of 30.2°C (86.4°F), marking it amongst the warmer months. There is ample rainfall, making the conditions a bit damp. The sea, however, provides a welcoming dip, with pleasant temperatures to cool off from the thermal heat. Weather in January »Weather in February
February notices a slight decline in temperature, rainfall, and daylight hours, maintaining a moderate weather phase quite similar to January. The sporadic rain showers bring a bit of relief from the warm temperatures throughout the month. Weather in February »Weather in March
By the time March arrives, Antsiranana starts experiencing a subtle transition marked by a small increase in temperature to 30.6°C (87.1°F). The weather patterns shift noticeably, exhibiting a significant reduction in rainfall. Weather in March »Weather in April
April marks a more definitive departure from the rainy season, with a remarkable decrease in rainfall down to 52mm (2.05"). Concurrently, Antsiranana experiences a subtle drop in temperature but it is still generally warm. The city gains an hour of sunlight, giving more time for sightseers and locals to venture outdoors. Weather in April »Weather in May
May in Antsiranana witnesses a noticeable change in weather patterns. There is a decline in temperature, most significantly in the lower bracket. A sharp decrease in rainfall contrastingly indicates a transition towards the drier months of the year. Weather in May »Weather in June
June brings around cooler temperatures, indicating the arrival of winter. The earlier months' trend of declining rainfall continues, maintaining the city quite dry. Sea temperatures further drop to 27°C (80.6°F), making water activities slightly brisk. Weather in June »Weather in July
July, the heart of the winter season, exhibits the year's lowest temperatures, dipping to 19.6°C (67.3°F) at night. Despite the low rainfall, the city experiences an overall lower number of sunlit hours. The surrounding sea, matching city temperatures, experiences a cooling effect. Weather in July »Weather in August
In August, Antsiranana's weather continues to mirror July's patterns, emphasizing a sustained dip in temperature. The consistently low rainfall numbers carry over to this month, highlighting the dryness of the season. Despite the chilliness of the sea, it remains popular among the adventure-seekers. Weather in August »Weather in September
September heralds the arrival of spring in Antsiranana with temperatures climbing back up to around 29.5°C (85.1°F). The amount of rainfall remains low and continues to support outdoor activities. The sea finds itself warming up in response to the increased sunlight. Weather in September »Weather in October
October in Antsiranana marks further rise in temperatures as the city moves deeper into the transition season. Rainfall is still comparatively low, contributing to the maintained dry conditions. The sea temperature continues to rise, luring back visitors to its blue expanse. Weather in October »Weather in November
November signifies the beginning of warmer temperatures, with the mercury reaching an average of 31.5°C (88.7°F), setting the stage for the summer season. A noticeable increase in rainfall figures indicate the city's movement towards a wetter phase. Weather in November »Weather in December
In December, temperatures in Antsiranana begin to stabilize around average highs of 31.4°C (88.5°F). The city witnesses a sharp spike in rainfall, a clear indication of the onset of the wet season. Despite the heavy showers, the sea remains inviting with its warm temperatures. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Antisiranana, Madagascar
The warmest month (with the highest average high temperature) is November (31.5°C).
The months with the lowest average high temperature are July and August (28.7°C).
The months with the highest average low temperature are March and December (22.9°C).
The coldest month (with the lowest average low temperature) is August (19.4°C).
Average rainfall
Antisiranana, Madagascar
- Average rainfall in January:
337.5mm - Average rainfall in February:
305.8mm - Average rainfall in March:
179.4mm - Average rainfall in April:
52.3mm - Average rainfall in May:
13.4mm - Average rainfall in June:
19.1mm
- Average rainfall in July:
19mm - Average rainfall in August:
18.7mm - Average rainfall in September:
8.8mm - Average rainfall in October:
17.4mm - Average rainfall in November:
54.6mm - Average rainfall in December:
170.8mm
The wettest month (with the highest rainfall) is January (337.5mm).
The driest month (with the least rainfall) is September (8.8mm).
Average rainfall days
Antisiranana, Madagascar
- Average rainfall days in January:
16 days - Average rainfall days in February:
15 days - Average rainfall days in March:
12 days - Average rainfall days in April:
6 days - Average rainfall days in May:
4 days - Average rainfall days in June:
3 days
- Average rainfall days in July:
4 days - Average rainfall days in August:
4 days - Average rainfall days in September:
2 days - Average rainfall days in October:
3 days - Average rainfall days in November:
5 days - Average rainfall days in December:
10 days
The month with the highest number of rainy days is January (16 days).
The month with the least rainy days is September (2 days).
Average sea temperature
Antisiranana, Madagascar
The best months for swimming (with the highest average sea temperature) are February and March (29°C).
The coldest months (with the lowest average sea temperature) are August and September (25°C).
Average daylight / Average sunshine
Antisiranana, Madagascar
- Average daylight in January:
12h and 48min - Average daylight in February:
12h and 30min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 48min - Average daylight in May:
11h and 30min - Average daylight in June:
11h and 24min
- Average daylight in July:
11h and 30min - Average daylight in August:
11h and 42min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 24min - Average daylight in November:
12h and 42min - Average daylight in December:
12h and 48min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
6h and 6min - Average sunshine in March:
6h and 54min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 12min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
8h and 48min - Average sunshine in August:
9h and 6min - Average sunshine in September:
9h and 48min - Average sunshine in October:
9h and 54min - Average sunshine in November:
9h and 24min - Average sunshine in December:
7h and 24min
The month with the most sunshine is October (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 6h and 6min).
Average UV index
Antisiranana, Madagascar
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 8).





