Guaratuba weather in March

In March, Guaratuba sees average daytime highs of 27°C and overnight lows near 22°C, with 206 mm of rain across 21.4 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 18% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Guaratuba's 6th-clearest and 7th-windiest month. For the whole year in context, see Guaratuba's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
206 mm
21.4 wet days
Daylight
12 h 12 min
7:18 AM – 7:30 PM
Cloud cover
67%
6th clearest
Wind
9 km/h
7th windiest
Solar energy
4.49 kWh/m²
Travel score
4.7
out of 10

Guaratuba is settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical March day in Guaratuba reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, March runs about 1°C cooler than February and about 2°C warmer than April.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142822
152822
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292722
302722
312722

Guaratuba weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°27123.313.44.1
Feb28° / 23°24920.612.94.1
Mar27° / 22°20621.412.24.7
Apr26° / 20°11914.211.46.0
May23° / 18°11512.710.86.4
Jun22° / 16°9810.110.46.5
Jul21° / 15°899.910.56.4
Aug21° / 16°819.411.16.6
Sep22° / 17°13313.911.85.8
Oct23° / 19°13616.412.65.5
Nov25° / 20°15316.613.35.5
Dec27° / 22°18619.213.65.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 20% of March, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23565
33565
43565
53664
63664
73565
83763
93763
103763
113763
123763
133763
143763
153763
163763
173763
183763
193862
203862
213763
223961
233961
243961
253961
263961
274060
284159
294159
304258
314258

Chance of precipitation in March

Any precipitation

Guaratuba gets around 206 mm of rain over 21.4 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 68% and peaks near 73% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
173
273
373
473
573
673
773
873
972
1072
1172
1272
1371
1471
1571
1670
1769
1869
1968
2067
2166
2266
2365
2464
2563
2662
2762
2861
2960
3059
3159

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the oppressive band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
105225617
205225716
305225716
404235716
504235815
604245715
704245814
804245913
904255813
1004255912
1104265911
1204275811
1304275910
140428599
150529579
160631558
170632548
180733537
190834517
200835516
211936496
221937476
2311038465
2411039455
2511040445
2611140435
2711141425
2811141415
2921142405
3021242395
3121242395

Wind in March

Winds average 9 km/h in March.

Across March, 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 March

DaylightNight

Daylight runs from about 12 h 36 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over March. Sunrise moves from 7:10 AM to 7:25 AM, and sunset from 7:45 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.67:107:45
212.57:117:44
312.57:127:43
412.57:127:42
512.57:137:41
612.47:137:40
712.47:147:39
812.47:147:38
912.47:157:37
1012.37:157:36
1112.37:167:35
1212.37:167:34
1312.37:177:33
1412.27:177:32
1512.27:187:31
1612.27:187:30
1712.27:197:29
1812.17:197:27
1912.17:207:26
2012.17:207:25
2112.17:217:24
2212.07:217:23
2312.07:227:22
2412.07:227:21
2512.07:237:20
2611.97:237:19
2711.97:237:18
2811.97:247:17
2911.97:247:15
3011.87:257:14
3111.87:257:13

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.49 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 5.51 kWh/m² in December across the year — March's 4.49 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.1Bright
314.1Bright
Planning a trip in March

Is March a good time to visit Guaratuba?

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

4.7
Sightseeing
10th-best month of the year
5.0
Beach & pool
5th-best month of the year

March is a reasonable time to visit Guaratuba for sightseeing.

What to pack for Guaratuba in March

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

In March, Guaratuba sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. About 21 days see rain.

light clothesrain gear

Sea temperature near Guaratuba in March

The nearest coast averages about 27°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 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 20 to Jun 28 — about 9.3 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr25Warm
May23Refreshing
Jun21Refreshing
Jul19Cool
Aug19Cool
Sep20Cool
Oct21Refreshing
Nov23Refreshing
Dec25Warm

UV index in Guaratuba in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guaratuba peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 19UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep8Very high
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in Guaratuba in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Guaratuba is worst in August — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (February, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1115 µg/m³Feb 229 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr10Good
May12Good
Jun14Moderate
Jul15Moderate
Aug15Moderate
Sep14Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Guaratuba?

Guaratuba sits at 25.9°S, 48.6°W, 6 m above sea level, in Brazil. The nearest listed city is Matinhos, 7.0 km away.

Topography around Guaratuba

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

Within 3 km, the terrain around Guaratuba has only modest variations in elevation — a maximum elevation change of 138 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 824 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,785 m.

The land around Guaratuba is covered by water (49%) and artificial surfaces (25%) within 3 km, water (50%) and trees (38%) within 16 km, and trees (54%) and water (34%) within 80 km.

3 km
138 m
16 km
824 m
80 km
1,785 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
March weather nearby: Matinhos 7.0 km · Pontal do Paraná 24 km · Itapoá 26 km · Garuva 32 km · São Francisco do Sul 41 km · Paranaguá 41 km · Morretes 52 km · Antonina 52 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 Guaratuba (-25.8828°, -48.5747°, 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. 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. 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).