Manaus weather in May

In May, Manaus sees average daytime highs of 30°C and overnight lows near 24°C, with 312 mm of rain across 29.1 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 3rd-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 3% of the time in May, and the air most often feels miserable.

Daylight stretches from about 11 h 54 min at the start of May to 11 h 48 min by month's end. Set against the rest of the year, May is Manaus's 7th-clearest and 12th-windiest month. For the whole year in context, see Manaus's year-round climate.

Daytime high
30°
9th warmest
Overnight low
24°
3rd coldest
Rainfall
312 mm
29.1 wet days
Daylight
11 h 54 min
6:01 AM – 5:52 PM
Cloud cover
85%
7th clearest
Wind
5 km/h
12th windiest
Solar energy
3.89 kWh/m²
Travel score
2.7
out of 10

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 Manaus reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024
313024

How May really feels in Manaus

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.

Manaus weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°2962812.22.8
Feb30° / 24°29225.312.12.8
Mar30° / 24°37529.5122.7
Apr30° / 24°36328.811.92.6
May30° / 24°31229.111.92.7
Jun30° / 23°16423.611.83.2
Jul31° / 23°10519.911.83.6
Aug32° / 24°9917.411.93.3
Sep33° / 24°12119.6122.9
Oct32° / 24°15921.612.12.7
Nov32° / 24°19323.612.12.6
Dec31° / 24°28928.212.22.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 8% of May, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2694
3694
4694
5793
6793
7793
8892
9991
10991
11991
12991
13991
14991
151189
161189
171189
181288
191288
201288
211387
221486
231486
241486
251684
261684
271882
281882
292080
302080
312179

Chance of precipitation in May

Any precipitation

Manaus gets around 312 mm of rain over 29.1 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 93% and peaks near 97% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
197
297
397
496
596
696
796
895
995
1095
1194
1294
1394
1494
1593
1693
1793
1892
1992
2092
2192
2292
2392
2492
2591
2691
2791
2890
2990
3089
3189

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14852
24852
34852
44852
54852
64852
74852
84753
94753
104753
114654
124654
134654
144654
154555
164555
174555
184555
194555
204654
214654
224753
234753
244852
254951
264951
275050
285149
295248
305248
315347

Wind in May

Winds average 5 km/h in May, the calmest month.

Across May, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 54 min at the start of May to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 6:01 AM to 6:02 AM, and sunset from 5:54 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:015:54
211.96:005:54
311.96:005:54
411.96:005:54
511.96:005:53
611.96:005:53
711.96:005:53
811.96:005:53
911.96:005:53
1011.96:005:53
1111.96:005:53
1211.96:005:52
1311.96:005:52
1411.96:005:52
1511.96:005:52
1611.96:015:52
1711.96:015:52
1811.96:015:52
1911.96:015:52
2011.96:015:52
2111.96:015:52
2211.86:015:52
2311.86:015:52
2411.86:015:52
2511.86:015:52
2611.86:025:52
2711.86:025:52
2811.86:025:52
2911.86:025:52
3011.86:025:52
3111.86:025:53

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.89 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 5.53 kWh/m² in October across the year — May's 3.89 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
224.0Moderate
234.0Moderate
244.0Moderate
254.0Moderate
264.0Moderate
274.0Bright
284.0Bright
294.0Bright
304.0Bright
314.0Bright
Planning a trip in May

Is May a good time to visit Manaus?

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

2.7
Sightseeing
7th-best month of the year
3.8
Beach & pool
10th-best month of the year

May is a weaker month for outdoor sightseeing in Manaus.

What to pack for Manaus in May

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

In May, Manaus sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Manaus in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Manaus peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highExtremeMar 13UV 15Nov 12UV 9
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug11Extreme
Sep11Extreme
Oct10Very high
Nov9Very high
Dec12Extreme

Air quality in Manaus 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 Manaus is worst in October — around 29 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1129 µg/m³Jun 1412 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar16Moderate
Apr15Moderate
May12Good
Jun12Good
Jul12Moderate
Aug20Moderate
Sep28Moderate
Oct29Moderate
Nov24Moderate
Dec18Moderate
Location & terrain

Where is Manaus?

Manaus sits at 3.1°S, 60.0°W, 20 m above sea level, in Brazil. The nearest listed city is Careiro da Várzea, 24 km away.

Topography around Manaus

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

Within 3 km, the terrain around Manaus has only modest variations in elevation — a maximum elevation change of 71 m around an average of 45 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 122 m; within 80 km, only modest variations in elevation — a maximum elevation change of 180 m.

The land around Manaus is covered by artificial surfaces (78%) within 3 km, trees (42%), water (27%) and artificial surfaces (23%) within 16 km, and trees (79%) within 80 km.

3 km
71 m
16 km
122 m
80 km
180 m
treesgrasslandartificial surfacesbare terrainwaterwetland
May weather nearby: Careiro da Várzea 24 km · Iranduba 27 km · Rio Preto da Eva 57 km · Manaquiri 60 km · Manacapuru 70 km · Careiro 83 km · Autazes 113 km · Novo Airão 115 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Manaus (-3.1019°, -60.025°, elevation 20 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).