Quissamã weather in May

In May, Quissamã sees average daytime highs of 28°C and overnight lows near 19°C, with 47 mm of rain across 8.6 wet days and about 11 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 27°C by the end. The sky is clear or mostly clear about 38% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of May to 10 h 48 min by month's end. Set against the rest of the year, May is Quissamã's 4th-clearest and 10th-windiest month. For the whole year in context, see Quissamã's year-round climate.

Daytime high
28°
9th warmest
Overnight low
19°
5th coldest
Rainfall
47 mm
8.6 wet days
Daylight
10 h 54 min
7:14 AM – 6:10 PM
Cloud cover
51%
4th clearest
Wind
9 km/h
10th windiest
Solar energy
3.75 kWh/m²
Travel score
6.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 27°C by the end.

A typical May day in Quissamã reaches about 28°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, May runs about 2°C cooler than April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

How May really feels in Quissamã

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Quissamã weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°17015.213.23.6
Feb32° / 24°8811.312.83.6
Mar31° / 23°14516.612.23.7
Apr30° / 22°7912.211.54.9
May28° / 19°478.6116.6
Jun27° / 18°214.610.77.5
Jul27° / 18°245.110.87.6
Aug27° / 18°214.611.27.4
Sep28° / 19°497.711.96.7
Oct29° / 21°8410.512.55.4
Nov29° / 22°17616.913.14.4
Dec30° / 23°20918.413.33.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36535
46535
56436
66436
76238
86139
95941
105842
115743
125644
135644
145545
155545
165446
175446
185545
195545
205644
215644
225842
235941
246040
256139
266238
276337
286436
296535
306535
316634

Chance of precipitation in May

Any precipitation

Quissamã gets around 47 mm of rain over 8.6 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 28% and peaks near 32% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
132
231
330
430
529
628
728
827
927
1027
1127
1228
1328
1428
1529
1629
1729
1830
1930
2030
2130
2229
2329
2428
2528
2627
2725
2824
2923
3022
3121

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 67% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12184436
22194534
32204632
43214730
53224728
63234727
74244725
84244724
94254723
104264723
114274722
125284721
135284720
145294719
155294719
166294718
176304717
186304817
196304816
206304915
216304914
227314914
237314913
247314912
258314911
268324911
279324910
289324910
299324910
301032499
311032499

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 12 min at the start of May to 10 h 48 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 7:07 AM to 7:20 AM, and sunset from 6:19 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:076:19
211.27:086:18
311.27:086:18
411.17:086:17
511.17:096:16
611.17:096:16
711.17:106:15
811.17:106:15
911.17:116:14
1011.07:116:13
1111.07:126:13
1211.07:126:12
1311.07:126:12
1411.07:136:11
1511.07:136:11
1610.97:146:10
1710.97:146:10
1810.97:156:10
1910.97:156:09
2010.97:166:09
2110.97:166:09
2210.97:176:08
2310.87:176:08
2410.87:176:08
2510.87:186:07
2610.87:186:07
2710.87:196:07
2810.87:196:07
2910.87:206:06
3010.87:206:06
3110.87:206:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.75 kWh/m².

For context, solar energy here swings from a low near 3.51 kWh/m² to a high of 6.33 kWh/m² in February across the year — May's 3.75 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.1Bright
34.1Bright
44.1Bright
54.0Bright
64.0Bright
74.0Moderate
84.0Moderate
93.9Moderate
103.9Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in May

Hazard calendar for Quissamã

In seasonPeak

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

Quissamã's rainy season runs November–January, 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 Quissamã?

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

6.6
Sightseeing
5th-best month of the year
7.1
Beach & pool
5th-best month of the year

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

What to pack for Quissamã in May

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

In May, Quissamã sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Quissamã in May

The nearest coast averages about 24°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 25°C and coldest in August near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep22Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Quissamã in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Quissamã peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 8UV 14Jun 23UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Quissamã?

Quissamã sits at 22.1°S, 41.5°W, 9 m above sea level, in Brazil. The nearest listed city is Conceição de Macabu, 41 km away.

Topography around Quissamã

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

Within 3 km, the terrain around Quissamã has only modest variations in elevation — a maximum elevation change of 15 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 99 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,716 m.

The land around Quissamã is covered by grassland (46%) and wetland (26%) within 3 km, grassland (47%) and water (23%) within 16 km, and grassland (41%) and water (36%) within 80 km.

3 km
15 m
16 km
99 m
80 km
1,716 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Conceição de Macabu 41 km · Campos dos Goytacazes 42 km · Macaé 45 km · São Fidélis 59 km · Rio das Ostras 67 km · São João da Barra 68 km · Cambuci 74 km · Itaocara 79 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 Quissamã (-22.1067°, -41.4722°, elevation 9 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).