Antsiranana weather in May

In May, Antsiranana sees average daytime highs of 30°C and overnight lows near 23°C, with 12 mm of rain across 1.9 wet days and about 11.4 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 68% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of May to 11 h 18 min by month's end. Set against the rest of the year, May is Antsiranana's 5th-clearest and 6th-windiest month. For the whole year in context, see Antsiranana's year-round climate.

Daytime high
30°
4th warmest
Overnight low
23°
6th coldest
Rainfall
12 mm
1.9 wet days
Daylight
11 h 24 min
5:56 AM – 5:22 PM
Cloud cover
33%
5th clearest
Wind
19 km/h
6th windiest
Solar energy
5.23 kWh/m²
Travel score
6.2
out of 10

Antsiranana is commune in Madagascar.

Density
3,261/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in Antsiranana reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73123
83123
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303022
313022

How May really feels in Antsiranana

Once humidity and wind are folded in, May averages 15 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
15
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Antsiranana weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°24424.412.63.4
Feb29° / 24°22023.612.43.3
Mar30° / 24°15119.212.13.9
Apr31° / 24°45811.75.0
May30° / 23°121.911.46.2
Jun29° / 22°51.211.37.1
Jul28° / 21°61.311.37.8
Aug28° / 21°40.911.67.8
Sep29° / 21°30.711.97.4
Oct30° / 22°131.312.36.5
Nov31° / 23°314.212.65.5
Dec31° / 24°12115.312.74.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 15%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28317
38317
48416
58317
68416
78416
88416
98416
108515
118515
128416
138515
148515
158515
168614
178614
188614
198614
208614
218614
228515
238515
248614
258614
268614
278515
288416
298416
308416
318416

Chance of precipitation in May

Any precipitation

Antsiranana gets around 12 mm of rain over 1.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
39
49
58
68
78
88
98
108
118
128
138
148
158
167
177
186
196
205
215
225
234
244
254
264
274
284
294
304
314

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the muggy band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 84% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1035344
2035443
3035641
4045739
5045937
6055936
7056134
8066133
9066331
10076429
11086527
12086626
13196624
141106722
151126720
161136818
171146916
181156915
191176913
202186812
212196811
222206810
23222679
24223669
25225658
26226648
27228628
28229627
29231607
30332587
31334576

Wind in May

Winds average 19 km/h in May.

Across May, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 36 min at the start of May to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 5:53 AM to 6:00 AM, and sunset from 5:27 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:535:27
211.65:535:27
311.55:535:26
411.55:535:26
511.55:545:25
611.55:545:25
711.55:545:25
811.55:545:24
911.55:545:24
1011.55:555:24
1111.55:555:23
1211.55:555:23
1311.55:555:23
1411.55:565:23
1511.45:565:22
1611.45:565:22
1711.45:565:22
1811.45:575:22
1911.45:575:21
2011.45:575:21
2111.45:575:21
2211.45:585:21
2311.45:585:21
2411.45:585:21
2511.45:585:21
2611.45:595:21
2711.45:595:20
2811.45:595:20
2911.36:005:20
3011.36:005:20
3111.36:005:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.23 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 6.97 kWh/m² in October across the year — May's 5.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Antsiranana

In seasonPeak

None of Antsiranana's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Antsiranana sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Antsiranana's monsoon runs December–March, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Antsiranana?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.2
Sightseeing
6th-best month of the year
8.5
Beach & pool
6th-best month of the year

May is a reasonable time to visit Antsiranana for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Antsiranana in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Antsiranana sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Antsiranana in May

The nearest coast averages about 28°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in March at about 28°C and coldest in August near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr28Tropical
May28Warm
Jun26Warm
Jul25Warm
Aug25Warm
Sep25Warm
Oct25Warm
Nov27Warm
Dec28Warm

UV index in Antsiranana in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Antsiranana peaks around February 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 20UV 15Jun 22UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Antsiranana?

Antsiranana sits at 12.3°S, 49.3°E, 60 m above sea level, in Madagascar. The nearest listed city is Antsohimbondrona, 98 km away.

AntsohimbondronaAmbilobeIharan̈aAmbarakarakaHell-VilleAmbanjaSambavaMaromandia

Topography around Antsiranana

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Antsiranana.

Within 3 km, the terrain around Antsiranana has only modest variations in elevation — a maximum elevation change of 106 m around an average of 39 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 466 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,441 m.

The land around Antsiranana is covered by grassland (47%) and artificial surfaces (23%) within 3 km, grassland (30%) and water (29%) within 16 km, and water (60%) and grassland (21%) within 80 km.

3 km
106 m
16 km
466 m
80 km
1,441 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Antsohimbondrona 98 km · Ambilobe 102 km · Iharan̈a 138 km · Ambarakaraka 139 km · Hell-Ville 164 km · Ambanja 176 km · Sambava 237 km · Maromandia 248 km

Madagascar travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$599
2025
Happiness
4.2 / 10
World Happiness, 2025
Safe drinking water
22%
of population, 2024
Road deaths
29.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 457
Religion
Church of Jesus Christ in Madagascar/Malagasy Lutheran Church/Anglican Church 34%Roman Catholic 32%none 22%other Christian 8%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Antsiranana (-12.3173°, 49.2919°, elevation 60 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).