Mananjary weather in May

In May, Mananjary sees average daytime highs of 26°C and overnight lows near 21°C, with 141 mm of rain across 19 wet days and about 11 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 37% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of May to 10 h 48 min by month's end. Set against the rest of the year, May is Mananjary's 6th-clearest and 10th-windiest month. For the whole year in context, see Mananjary's year-round climate.

Daytime high
26°
8th warmest
Overnight low
21°
5th coldest
Rainfall
141 mm
19 wet days
Daylight
11 hours
6:13 AM – 5:13 PM
Cloud cover
50%
6th clearest
Wind
8 km/h
10th windiest
Solar energy
3.65 kWh/m²
Travel score
5.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical May day in Mananjary reaches about 26°C in the afternoon and slips back to 21°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42622
52622
62622
72622
82622
92622
102621
112621
122621
132621
142621
152621
162621
172621
182621
192621
202621
212621
222521
232521
242521
252521
262520
272520
282520
292520
302520
312520

How May really feels in Mananjary

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mananjary weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°31225.113.13.5
Feb29° / 25°27423.612.73.5
Mar29° / 24°27924.912.23.8
Apr28° / 23°16420.911.54.9
May26° / 21°14119115.5
Jun24° / 19°9216.910.76.0
Jul23° / 18°9417.810.86.0
Aug24° / 18°5713.211.36.8
Sep25° / 19°481011.97.2
Oct26° / 21°6010.712.56.8
Nov28° / 23°8512.7135.9
Dec29° / 24°15219.413.34.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 29% of May, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36238
46139
56139
66139
76139
86139
96139
106139
116139
126238
136238
146238
156436
166436
176535
186634
196733
206832
216931
227030
237030
247129
257228
267327
277327
287426
297426
307426
317426

Chance of precipitation in May

Any precipitation

Mananjary gets around 141 mm of rain over 19 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 61% and peaks near 66% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
364
464
565
665
765
865
966
1066
1166
1266
1365
1465
1564
1663
1762
1861
1960
2059
2159
2258
2357
2457
2556
2656
2755
2855
2955
3055
3155

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10237601
20239581
30241561
40242551
50244531
60246511
70247491
80349471
90351451
100353431
110454411
120456391
130557371
140658351
150660331
160661321
170762301
180764281
190865270
200866260
210868240
220967240
230968230
240969220
2501069210
2601070200
2711169190
2811170180
2911270170
3011470150
3111570140

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 12 min at the start of May to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 6:07 AM to 6:20 AM, and sunset from 5:21 PM to 5:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:075:21
211.26:075:20
311.26:085:19
411.26:085:19
511.26:085:18
611.16:095:18
711.16:095:17
811.16:105:16
911.16:105:16
1011.16:115:15
1111.16:115:15
1211.06:115:14
1311.06:125:14
1411.06:125:13
1511.06:135:13
1611.06:135:13
1711.06:145:12
1811.06:145:12
1911.06:145:11
2010.96:155:11
2110.96:155:11
2210.96:165:10
2310.96:165:10
2410.96:175:10
2510.96:175:10
2610.96:175:09
2710.96:185:09
2810.86:185:09
2910.86:195:09
3010.86:195:09
3110.86:205:08

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.65 kWh/m².

For context, solar energy here swings from a low near 3.28 kWh/m² to a high of 6.32 kWh/m² in December across the year — May's 3.65 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in May

Hazard calendar for Mananjary

In seasonPeak

In May, Mananjary sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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

Mananjary's rainy season runs December–May, when most of the year's rain falls.

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

Is May a good time to visit Mananjary?

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

5.5
Sightseeing
7th-best month of the year
5.2
Beach & pool
6th-best month of the year

May is a reasonable time to visit Mananjary for sightseeing.

What to pack for Mananjary in May

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

In May, Mananjary sees daytime highs around 26°C and nights near 21°C. Pack rain gear. Worth having: light clothes. About 19 days see rain.

rain gearlight clothes

Sea temperature near Mananjary in May

The nearest coast averages about 27°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 16 km away) is warmest in February at about 28°C and coldest in August near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr28Warm
May27Warm
Jun26Warm
Jul25Warm
Aug24Warm
Sep24Warm
Oct25Warm
Nov26Warm
Dec27Warm

UV index in Mananjary in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mananjary peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 12UV 16Jun 18UV 6
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Mananjary in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Mananjary is worst in October — around 36 µg/m³ PM2.5 (poor), about 5.6× the cleanest month (February, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateOct 1834 µg/m³Feb 196 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb6Good
Mar7Good
Apr9Good
May13Moderate
Jun13Moderate
Jul12Good
Aug11Good
Sep14Moderate
Oct36Poor
Nov22Moderate
Dec10Good
Location & terrain

Where is Mananjary?

Mananjary sits at 21.2°S, 48.3°E, 7 m above sea level, in Madagascar. The nearest listed city is Sahavato, 70 km away.

AmboanjoManakaraIkongoFianarantsoaMarolambo

Topography around Mananjary

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

Within 3 km, the terrain around Mananjary has only modest variations in elevation — a maximum elevation change of 41 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 86 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,258 m.

The land around Mananjary is covered by water (37%), trees (25%) and grassland (21%) within 3 km, water (46%), grassland (25%) and trees (22%) within 16 km, and water (35%), grassland (29%) and trees (22%) within 80 km.

3 km
41 m
16 km
86 m
80 km
1,258 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Sahavato 70 km · Ifanadiana 74 km · Nosy Varika 75 km · Amboanjo 100 km · Manakara 108 km · Ikongo 119 km · Fianarantsoa 132 km · Marolambo 133 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 Mananjary (-21.2303°, 48.3417°, elevation 7 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).