Almeirim weather in May

In May, Almeirim sees average daytime highs of 30°C and overnight lows near 24°C, with 247 mm of rain across 27.8 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 7% 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 54 min by month's end. Set against the rest of the year, May is Almeirim's 8th-clearest and 12th-windiest month. For the whole year in context, see Almeirim's year-round climate.

Daytime high
30°
9th warmest
Overnight low
24°
6th coldest
Rainfall
247 mm
27.8 wet days
Daylight
11 h 54 min
6:29 AM – 6:25 PM
Cloud cover
77%
8th clearest
Wind
7 km/h
12th windiest
Solar energy
3.84 kWh/m²
Travel score
2.9
out of 10

Almeirim is human settlement in Brazil.

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 Almeirim 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 Almeirim

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.

Almeirim 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°18924.412.13.1
Feb30° / 24°22524.4123.0
Mar30° / 24°27828.1122.9
Apr30° / 24°31528.5122.8
May30° / 24°24727.811.92.9
Jun30° / 24°13622.711.93.4
Jul31° / 24°8517.511.94.0
Aug32° / 25°469.8124.3
Sep33° / 25°265.4124.2
Oct33° / 25°306.3123.8
Nov33° / 25°467.912.13.7
Dec32° / 25°9815.112.13.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21288
31387
41387
51486
61585
71783
81783
91882
102080
112080
122179
132278
142377
152476
162476
172575
182575
192575
202773
212773
222773
232872
242971
253070
263070
273367
283367
293565
303664
313763

Chance of precipitation in May

Any precipitation

Almeirim gets around 247 mm of rain over 27.8 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 89% and peaks near 95% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
195
295
395
495
594
694
793
893
992
1091
1191
1290
1390
1489
1589
1689
1788
1888
1988
2088
2188
2287
2387
2487
2586
2686
2785
2884
2984
3083
3183

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11783
21684
31684
41684
51684
61585
71585
81585
91585
101585
111585
121585
131585
141585
151684
161684
171783
181882
191882
201981
211981
222080
232080
242179
252179
262278
272278
282377
292377
302377
312476

Wind in May

Winds average 7 km/h in May, the calmest month.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

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

Days grow by about 0 minutes over May. Sunrise moves from 6:29 AM to 6:30 AM, and sunset from 6:26 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:296:26
211.96:296:26
311.96:296:26
411.96:296:25
511.96:296:25
611.96:296:25
711.96:296:25
811.96:296:25
911.96:296:25
1011.96:296:25
1111.96:296:25
1211.96:296:25
1311.96:296:25
1411.96:296:25
1511.96:296:25
1611.96:296:25
1711.96:296:24
1811.96:296:24
1911.96:296:24
2011.96:296:25
2111.96:296:25
2211.96:296:25
2311.96:296:25
2411.96:296:25
2511.96:296:25
2611.96:296:25
2711.96:306:25
2811.96:306:25
2911.96:306:25
3011.96:306:25
3111.96:306:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.84 kWh/m².

For context, solar energy here swings from a low near 3.74 kWh/m² to a high of 6.25 kWh/m² in October across the year — May's 3.84 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.7Moderate
73.7Moderate
83.7Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
234.0Moderate
244.0Moderate
254.0Moderate
264.0Moderate
274.0Bright
284.0Bright
294.0Bright
304.0Bright
314.0Bright
Planning a trip in May

Hazard calendar for Almeirim

In seasonPeak

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

Almeirim's monsoon runs January–May, 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 Almeirim?

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

2.9
Sightseeing
10th-best month of the year
4.0
Beach & pool
10th-best month of the year

May is a weaker month for outdoor sightseeing in Almeirim.

What to pack for Almeirim in May

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

In May, Almeirim sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Almeirim 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 Almeirim peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Almeirim 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 Almeirim is worst in November — around 23 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (July, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1722 µg/m³Jul 109 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar17Moderate
Apr15Moderate
May10Good
Jun9Good
Jul9Good
Aug11Good
Sep11Good
Oct16Moderate
Nov23Moderate
Dec18Moderate
Location & terrain

Where is Almeirim?

Almeirim sits at 1.5°S, 52.6°W, 6 m above sea level, in Brazil. The nearest listed city is Porto de Moz, 46 km away.

Topography around Almeirim

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

Within 3 km, the terrain around Almeirim has only modest variations in elevation — a maximum elevation change of 176 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 211 m; within 80 km, significant variations in elevation — a maximum elevation change of 418 m.

The land around Almeirim is covered by trees (44%), water (26%) and grassland (20%) within 3 km, trees (43%), water (25%) and wetland (21%) within 16 km, and trees (69%) within 80 km.

3 km
176 m
16 km
211 m
80 km
418 m
treesgrasslandartificial surfaceswaterwetland
May weather nearby: Porto de Moz 46 km · Laranjal do Jari 78 km · Prainha 104 km · Gurupá 106 km · Senador José Porfírio 138 km · Vitória do Xingu 164 km · Monte Alegre 175 km · Altamira 191 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 Almeirim (-1.5233°, -52.5817°, elevation 6 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).