Arivonimamo weather in May

In May, Arivonimamo sees average daytime highs of 23°C and overnight lows near 13°C, with 15 mm of rain across 2.9 wet days and about 11.1 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 22°C by the end. The sky is clear or mostly clear about 43% of the time in May, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of May to 10 h 54 min by month's end. Set against the rest of the year, May is Arivonimamo's 6th-clearest and 8th-windiest month. For the whole year in context, see Arivonimamo's year-round climate.

Daytime high
23°
9th warmest
Overnight low
13°
5th coldest
Rainfall
15 mm
2.9 wet days
Daylight
11 h 06 min
6:14 AM – 5:21 PM
Cloud cover
46%
6th clearest
Wind
10 km/h
8th windiest
Solar energy
4.46 kWh/m²
Travel score
8.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 22°C by the end.

A typical May day in Arivonimamo reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72313
82313
92313
102313
112313
122313
132313
142313
152313
162313
172313
182313
192312
202212
212212
222212
232212
242212
252212
262212
272212
282212
292212
302212
312211

Arivonimamo weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°30521.9134.7
Feb26° / 17°27019.312.64.9
Mar26° / 17°14715.212.15.8
Apr25° / 15°387.511.67.4
May23° / 13°152.911.18.1
Jun21° / 10°40.810.98.1
Jul20° / 10°41117.9
Aug21° / 10°40.911.48.4
Sep24° / 11°71.711.98.7
Oct26° / 13°456.812.47.5
Nov27° / 15°11112.112.96.3
Dec26° / 17°2121813.15.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 27% of May, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27129
37030
46931
56931
66832
76733
86634
96634
106535
116535
126436
136436
146535
156535
166535
176733
186733
196931
206931
217129
227228
237228
247327
257426
267525
277525
287525
297723
307723
317723

Chance of precipitation in May

Any precipitation

Arivonimamo gets around 15 mm of rain over 2.9 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 9% and peaks near 15% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
115
215
314
414
513
613
713
812
912
1011
1111
1210
1310
149
159
168
178
187
197
207
217
226
236
246
256
266
276
286
296
306
316

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 59% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
132617
233616
335605
436604
537594
639574
741563
843543
945523
1047503
1149483
1252453
1354433
1456413
1559383
1661363
1764342
1865332
1967312
2069292
2171281
2272271
2373261
2474251
2575241
2676231
2778220
2879210
2980200
3082180
3183170

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 18 min at the start of May to 10 h 54 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 6:09 AM to 6:20 AM, and sunset from 5:28 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:095:28
211.36:095:27
311.36:105:27
411.36:105:26
511.36:105:26
611.26:115:25
711.26:115:25
811.26:115:24
911.26:125:24
1011.26:125:23
1111.26:125:23
1211.26:135:22
1311.16:135:22
1411.16:145:21
1511.16:145:21
1611.16:145:21
1711.16:155:20
1811.16:155:20
1911.16:165:20
2011.16:165:19
2111.06:165:19
2211.06:175:19
2311.06:175:19
2411.06:175:18
2511.06:185:18
2611.06:185:18
2711.06:195:18
2811.06:195:18
2911.06:195:17
3011.06:205:17
3110.96:205:17

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.46 kWh/m².

For context, solar energy here swings from a low near 4.11 kWh/m² to a high of 6.77 kWh/m² in November across the year — May's 4.46 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in May

Hazard calendar for Arivonimamo

In seasonPeak

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

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

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

Is May a good time to visit Arivonimamo?

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

8.1
Sightseeing
3rd-best month of the year
6.1
Beach & pool
5th-best month of the year

May is one of the better times to visit Arivonimamo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Arivonimamo in May

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

In May, Arivonimamo sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes.

light clothes

UV index in Arivonimamo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arivonimamo peaks around February 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeFeb 11UV 16Jun 17UV 7
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7High
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec16Extreme

Air quality in Arivonimamo 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 Arivonimamo is worst in October — around 24 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1723 µg/m³Jan 157 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb9Good
Mar11Good
Apr14Moderate
May21Moderate
Jun22Moderate
Jul21Moderate
Aug18Moderate
Sep15Moderate
Oct24Moderate
Nov17Moderate
Dec8Good
Location & terrain

Where is Arivonimamo?

Arivonimamo sits at 19.0°S, 47.2°E, 1,418 m above sea level, in Madagascar. The nearest listed city is Imerintsiatosika, 15 km away.

Topography around Arivonimamo

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

Within 3 km, the terrain around Arivonimamo has only modest variations in elevation — a maximum elevation change of 192 m around an average of 1,406 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,761 m.

The land around Arivonimamo is covered by cropland (51%) and grassland (40%) within 3 km, grassland (62%) and cropland (35%) within 16 km, and grassland (63%) and cropland (30%) within 80 km.

3 km
192 m
16 km
536 m
80 km
1,761 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Imerintsiatosika 15 km · Ambohidratrimo 34 km · Antananarivo 39 km · Ivato 40 km · Ambatolampy 48 km · Faratsiho 49 km · Soavinandriana 50 km · Alarobia 58 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 Arivonimamo (-19.0167°, 47.1833°, elevation 1,418 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. 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).