Prainha weather in May

In May, Prainha sees average daytime highs of 30°C and overnight lows near 24°C, with 259 mm of rain across 28.2 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 6% 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 Prainha's 8th-clearest and 12th-windiest month. For the whole year in context, see Prainha's year-round climate.

Daytime high
30°
9th warmest
Overnight low
24°
6th coldest
Rainfall
259 mm
28.2 wet days
Daylight
11 h 54 min
6:33 AM – 6:28 PM
Cloud cover
78%
8th clearest
Wind
7 km/h
12th windiest
Solar energy
4.01 kWh/m²
Travel score
2.9
out of 10

Prainha 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 Prainha 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 Prainha

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.

Prainha 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
Jan31° / 24°24124.312.13.0
Feb30° / 24°24623.912.13.0
Mar30° / 24°32028.1122.8
Apr30° / 24°33228.1122.8
May30° / 24°25928.211.92.9
Jun30° / 24°13922.111.93.4
Jul31° / 24°8916.511.94.1
Aug32° / 25°377.911.94.4
Sep33° / 25°315.7123.9
Oct33° / 25°427.1123.6
Nov33° / 25°751012.13.4
Dec32° / 25°11915.812.13.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% 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 78%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31189
41189
51387
61486
71585
81684
91783
101882
111981
122080
132278
142278
152377
162377
172476
182476
192575
202575
212575
222674
232575
242674
252773
262773
272971
283070
293169
303367
313565

Chance of precipitation in May

Any precipitation

Prainha gets around 259 mm of rain over 28.2 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 90% 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
794
893
993
1092
1192
1292
1391
1491
1591
1691
1790
1890
1990
2090
2190
2289
2389
2488
2587
2687
2786
2885
2984
3083
3182

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 76% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12377
22377
32377
42377
52377
62377
72377
82278
92278
102278
112179
122179
132179
142179
152179
162278
172278
182377
192377
202476
212476
222575
232674
242773
252773
262872
272971
282971
293070
303070
313169

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 6:33 AM to 6:34 AM, and sunset from 6:29 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:336:29
211.96:336:29
311.96:336:29
411.96:336:29
511.96:336:29
611.96:336:28
711.96:336:28
811.96:336:28
911.96:336:28
1011.96:336:28
1111.96:336:28
1211.96:336:28
1311.96:336:28
1411.96:336:28
1511.96:336:28
1611.96:336:28
1711.96:336:28
1811.96:336:28
1911.96:336:28
2011.96:336:28
2111.96:336:28
2211.96:336:28
2311.96:336:28
2411.96:336:28
2511.96:336:28
2611.96:336:28
2711.96:346:28
2811.96:346:28
2911.96:346:28
3011.96:346:28
3111.96:346:28

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.01 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.41 kWh/m² in October across the year — May's 4.01 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
94.0Moderate
104.0Moderate
114.0Moderate
124.0Bright
134.0Bright
144.0Bright
154.0Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in May

Hazard calendar for Prainha

In seasonPeak

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

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

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

Is May a good time to visit Prainha?

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 Prainha.

What to pack for Prainha in May

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

In May, Prainha 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 Prainha 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 Prainha 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 Prainha 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 Prainha is worst in November — around 26 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (June, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1626 µg/m³Jun 239 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar17Moderate
Apr14Moderate
May10Good
Jun9Good
Jul9Good
Aug10Good
Sep12Moderate
Oct20Moderate
Nov26Moderate
Dec20Moderate
Location & terrain

Where is Prainha?

Prainha sits at 1.8°S, 53.5°W, 35 m above sea level, in Brazil. The nearest listed city is Monte Alegre, 70 km away.

Topography around Prainha

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

Within 3 km, the terrain around Prainha has only modest variations in elevation — a maximum elevation change of 52 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 111 m; within 80 km, large variations in elevation — a maximum elevation change of 631 m.

The land around Prainha is covered by trees (39%), water (32%) and grassland (23%) within 3 km, trees (37%), water (31%) and grassland (23%) within 16 km, and trees (66%) within 80 km.

3 km
52 m
16 km
111 m
80 km
631 m
treesgrasslandartificial surfaceswaterwetland
May weather nearby: Monte Alegre 70 km · Almeirim 104 km · Porto de Moz 138 km · Alenquer 141 km · Laranjal do Jari 153 km · Santarém 154 km · Mojuí dos Campos 162 km · Belterra 187 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 Prainha (-1.8°, -53.48°, elevation 35 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).