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Monthly climate in Mahajanga, Madagascar

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mahajanga features a tropical savanna climate (Aw). Temperatures typically range between 25 °C (78 °F) and 28 °C (83 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 35 °C (94 °F). The average annual precipitation amounts to about 1265 mm (49.8 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually. Mahajanga enjoys an average of 3999 hours of sunshine throughout the year, and daylight varies from 11 hours 11 minutes to 13 hours 1 minutes per day.

Monthly average temperatures in Mahajanga, Madagascar

The warmest months in Mahajanga are April, November and December, with daily mean temperatures ranging from 28 to 28 °C (83 - 83 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 25 to 26 °C (78 - 79 °F) throughout the day. On average each year, Mahajanga experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mahajanga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		33°C
(92°F)		34°C
(93°F)		34°C
(94°F)		33°C
(92°F)		32°C
(90°F)		32°C
(89°F)		32°C
(90°F)		33°C
(92°F)		34°C
(94°F)		34°C
(94°F)		35°C
(94°F)
Mean maximum32°C
(90°F)		32°C
(91°F)		32°C
(91°F)		33°C
(92°F)		33°C
(91°F)		31°C
(88°F)		31°C
(88°F)		32°C
(89°F)		33°C
(92°F)		34°C
(93°F)		34°C
(93°F)		33°C
(92°F)
Average high30°C
(86°F)		30°C
(87°F)		31°C
(87°F)		32°C
(89°F)		31°C
(89°F)		30°C
(86°F)		30°C
(85°F)		30°C
(87°F)		31°C
(88°F)		32°C
(89°F)		31°C
(88°F)		31°C
(88°F)
Daily mean27°C
(81°F)		28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		27°C
(82°F)		26°C
(79°F)		25°C
(78°F)		26°C
(78°F)		27°C
(80°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)
Average low25°C
(78°F)		26°C
(78°F)		26°C
(78°F)		26°C
(78°F)		24°C
(75°F)		22°C
(72°F)		21°C
(70°F)		22°C
(71°F)		23°C
(73°F)		25°C
(77°F)		26°C
(78°F)		26°C
(79°F)
Mean minimum24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		22°C
(72°F)		20°C
(69°F)		19°C
(67°F)		20°C
(68°F)		21°C
(70°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)
Minimum24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		23°C
(74°F)		21°C
(71°F)		20°C
(68°F)		19°C
(66°F)		19°C
(67°F)		20°C
(69°F)		22°C
(73°F)		22°C
(72°F)		24°C
(75°F)

Compare climate in Mahajanga with other places

Compare temperature, precipitation, sunshine, UV index in Mahajanga, Madagascar with other places around the world.

Monthly average precipitation in Mahajanga, Madagascar

Mahajanga usually has the most precipitation in January, February and March, with an average of 24 rainy days and 289 mm (11.4 inches) of precipitation per month. The driest months in Mahajanga are July, August and September. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mahajanga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)394 (15.5)253 (10.0)220 (8.7)63 (2.5)3 (0.1)3 (0.1)2 (0.1)2 (0.1)2 (0.1)12 (0.5)97 (3.8)213 (8.4)
Average precipitation days (≥ 1 mm)242524120000031622

Monthly sunshine hours in Mahajanga, Madagascar

The sunniest months in Mahajanga are October, November and December, when the sun shines an average of 11 hours 52 minutes a day. Least sunny months in Mahajanga: January, February and June receive an average of 9 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mahajanga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours260306332330335321335342342366359366
Mean daily daylight hours12h 55m12h 35m12h 9m11h 43m11h 21m11h 11m11h 16m11h 35m12h 0m12h 26m12h 49m13h 1m

Solar UV radiation in Mahajanga, Madagascar

Mahajanga experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Mahajanga UV Index data.

Average daily maximum UV levels by month for Mahajanga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1616151310891112121315