Registro weather in May

In May, Registro sees average daytime highs of 25°C and overnight lows near 17°C, with 79 mm of rain across 10.6 wet days and about 10.8 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 36 min by month's end. Set against the rest of the year, May is Registro's 4th-clearest and 11th-windiest month. For the whole year in context, see Registro's year-round climate.

Daytime high
25°
9th warmest
Overnight low
17°
5th coldest
Rainfall
79 mm
10.6 wet days
Daylight
10 h 48 min
7:43 AM – 6:32 PM
Cloud cover
63%
4th clearest
Wind
5 km/h
11th windiest
Solar energy
3.11 kWh/m²
Travel score
6.6
out of 10

Registro 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

Highs ease over the month, from about 26°C in the first days to 24°C by the end.

A typical May day in Registro reaches about 25°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, May runs about 3°C cooler than April and about 1°C warmer than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42618
52618
62618
72618
82618
92618
102618
112618
122517
132517
142517
152517
162517
172517
182517
192517
202517
212517
222517
232517
242417
252416
262416
272416
282416
292416
302416
312416

How May really feels in Registro

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.

Registro weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°2202213.33.2
Feb31° / 23°1932012.93.3
Mar30° / 22°1482012.23.9
Apr28° / 20°7812.711.45.5
May25° / 17°7910.610.86.6
Jun24° / 15°647.910.57.2
Jul24° / 15°648.110.67.2
Aug24° / 15°517.711.17.2
Sep25° / 17°9111.611.86.3
Oct27° / 19°9313.912.65.6
Nov28° / 20°10515.213.24.9
Dec30° / 22°14417.313.53.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24852
34852
44753
54753
64654
74654
84555
94555
104357
114258
124258
134159
144159
154159
164060
174060
184060
193961
204060
214159
224258
234159
244159
254258
264159
274357
284357
294357
304357
314456

Chance of precipitation in May

Any precipitation

Registro gets around 79 mm of rain over 10.6 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 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
435
535
634
734
834
934
1034
1134
1234
1334
1434
1534
1634
1734
1834
1934
2035
2135
2235
2335
2435
2535
2635
2735
2835
2934
3034
3134

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 41% 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 (%)
127254817
228264816
338274814
439284813
5310294711
6310304710
731131479
831132468
931133467
1021234466
1131235455
1231236445
1331237444
1431338434
1531338433
1631339423
1731340413
1841340403
1941340403
2051341393
2161341383
2261341373
2371441362
2471441352
2581541342
2681542332
2791642322
2891642312
29101742302
30101742292
31101842291

Wind in May

Winds average 5 km/h in May.

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 06 min at the start of May to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 7:36 AM to 7:51 AM, and sunset from 6:42 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:366:42
211.17:366:41
311.17:376:40
411.07:376:39
511.07:386:39
611.07:386:38
711.07:396:37
811.07:396:37
910.97:406:36
1010.97:406:35
1110.97:416:35
1210.97:416:34
1310.97:426:34
1410.87:426:33
1510.87:436:33
1610.87:436:32
1710.87:446:32
1810.87:446:31
1910.87:456:31
2010.87:456:30
2110.77:466:30
2210.77:466:30
2310.77:476:29
2410.77:476:29
2510.77:486:28
2610.77:486:28
2710.77:496:28
2810.67:496:28
2910.67:506:27
3010.67:506:27
3110.67:516:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.11 kWh/m².

For context, solar energy here swings from a low near 2.77 kWh/m² to a high of 5.42 kWh/m² in December across the year — May's 3.11 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.4Moderate
63.4Moderate
73.4Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.8Moderate
312.8Moderate
Planning a trip in May

Hazard calendar for Registro

In seasonPeak

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

Registro's rainy season runs November–March, 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 Registro?

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

6.6
Sightseeing
4th-best month of the year
6.1
Beach & pool
4th-best month of the year

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

What to pack for Registro in May

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

In May, Registro sees daytime highs around 25°C and nights near 17°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Registro in May

The nearest coast averages about 23°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 48 km away) is warmest in February at about 27°C and coldest in August near 19°C.

It's comfortable for a long swim from Sep 6 to Jul 12 — about 10.2 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May23Refreshing
Jun21Refreshing
Jul20Cool
Aug19Cool
Sep20Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Registro in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Registro peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 19UV 14Jul 11UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5High
Jul5High
Aug7Very high
Sep8Very high
Oct10Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Registro?

Registro sits at 24.5°S, 47.8°W, 17 m above sea level, in Brazil. The nearest listed city is Pariquera-Açu, 26 km away.

Topography around Registro

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

Within 3 km, the terrain around Registro has only modest variations in elevation — a maximum elevation change of 78 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 403 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,480 m.

The land around Registro is covered by trees (51%), grassland (23%) and artificial surfaces (20%) within 3 km, trees (78%) within 16 km, and trees (74%) within 80 km.

3 km
78 m
16 km
403 m
80 km
1,480 m
treesgrasslandcroplandartificial surfaceswatermangroves
May weather nearby: Pariquera-Açu 26 km · Jacupiranga 28 km · Juquiá 28 km · Iguape 38 km · Cajati 40 km · Miracatu 45 km · São Miguel Arcanjo 70 km · Itariri 71 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 Registro (-24.4875°, -47.8436°, elevation 17 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).