Boriziny weather in May

In May, Boriziny sees average daytime highs of 33°C and overnight lows near 22°C, with 9 mm of rain across 1.6 wet days and about 11.3 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 76% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 24 min at the start of May to 11 h 12 min by month's end. Set against the rest of the year, May is Boriziny's 6th-clearest and 6th-windiest month. For the whole year in context, see Boriziny's year-round climate.

Daytime high
33°
6th warmest
Overnight low
22°
5th coldest
Rainfall
9 mm
1.6 wet days
Daylight
11 h 18 min
6:07 AM – 5:24 PM
Cloud cover
27%
6th clearest
Wind
13 km/h
6th windiest
Solar energy
5.17 kWh/m²
Travel score
4.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Boriziny reaches about 33°C in the afternoon and slips back to 22°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153322
163322
173322
183322
193322
203322
213322
223322
233322
243322
253322
263222
273222
283222
293222
303222
313221

How May really feels in Boriziny

Once humidity and wind are folded in, May averages 31 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
31
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.

Boriziny weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°4722712.82.4
Feb32° / 24°34424.212.52.5
Mar33° / 24°21719.112.12.8
Apr34° / 24°366.511.73.6
May33° / 22°91.611.34.6
Jun31° / 21°20.411.15.7
Jul31° / 20°10.311.26.1
Aug32° / 20°20.311.55.6
Sep33° / 21°20.611.94.6
Oct35° / 23°214.312.43.2
Nov35° / 24°10212.112.72.4
Dec34° / 24°25622.412.92.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38614
48713
58713
68713
78713
88713
98713
108713
118713
128713
138713
148713
158812
168812
178812
188812
198911
209010
219010
22919
23919
24919
25928
26928
27937
28937
29937
30946
31946

Chance of precipitation in May

Any precipitation

Boriziny gets around 9 mm of rain over 1.6 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 5% and peaks near 8% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
48
58
68
78
88
98
107
117
127
137
146
156
166
175
185
195
204
214
223
233
243
253
262
272
282
292
302
312

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
101275616
201285615
301295614
401305514
501325413
601335313
701345312
801355212
902375011
1002394811
1103404710
1203424510
130444439
140546409
150648388
160649368
170751357
180853336
190953326
2001054315
2101155304
2211254294
2311354293
2411454283
2511456272
2611556262
2711656252
2811756242
2911856232
3011956231
3122056211

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 6:03 AM to 6:12 AM, and sunset from 5:30 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:035:30
211.46:035:30
311.46:045:29
411.46:045:29
511.46:045:28
611.46:045:28
711.46:055:27
811.46:055:27
911.46:055:26
1011.36:055:26
1111.36:065:26
1211.36:065:25
1311.36:065:25
1411.36:075:25
1511.36:075:24
1611.36:075:24
1711.36:085:24
1811.36:085:23
1911.26:085:23
2011.26:095:23
2111.26:095:23
2211.26:095:22
2311.26:095:22
2411.26:105:22
2511.26:105:22
2611.26:105:22
2711.26:115:22
2811.26:115:22
2911.26:115:21
3011.26:125:21
3111.26:125:21

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.17 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 7.12 kWh/m² in October across the year — May's 5.17 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Boriziny

In seasonPeak

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

Boriziny'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 Boriziny?

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

4.6
Sightseeing
4th-best month of the year
8.0
Beach & pool
5th-best month of the year

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

What to pack for Boriziny in May

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

In May, Boriziny sees daytime highs around 33°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Boriziny 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 Boriziny peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 10UV 15Jun 19UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec14Extreme

Air quality in Boriziny 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 Boriziny is worst in November — around 21 µg/m³ PM2.5 (moderate), about 5.3× the cleanest month (July, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 1620 µg/m³Jul 154 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr5Good
May5Good
Jun4Good
Jul4Good
Aug5Good
Sep6Good
Oct12Good
Nov21Moderate
Dec12Good
Location & terrain

Where is Boriziny?

Boriziny sits at 15.6°S, 47.7°E, 22 m above sea level, in Madagascar. The nearest listed city is Mampikony, 60 km away.

BefandrianaMarovoayTsaratananaAmbato BoenyMahajangaMaromandia

Topography around Boriziny

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

Within 3 km, the terrain around Boriziny has only modest variations in elevation — a maximum elevation change of 69 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 306 m; within 80 km, large variations in elevation — a maximum elevation change of 1,122 m.

The land around Boriziny is covered by cropland (49%) and grassland (33%) within 3 km, grassland (53%) and trees (24%) within 16 km, and grassland (61%) and trees (25%) within 80 km.

3 km
69 m
16 km
306 m
80 km
1,122 m
treesshrubsgrasslandcroplandwatermangroves
May weather nearby: Mampikony 60 km · Antsohihy 82 km · Befandriana 99 km · Marovoay 126 km · Tsaratanana 139 km · Ambato Boeny 144 km · Mahajanga 146 km · Maromandia 155 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 Boriziny (-15.55°, 47.6667°, elevation 22 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).