Rio Tinto weather in March

In March, Rio Tinto sees average daytime highs of 29°C and overnight lows near 25°C, with 119 mm of rain across 21.8 wet days and about 12 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 43% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of March to 12 hours by month's end. Set against the rest of the year, March is Rio Tinto's 10th-clearest and 12th-windiest month. For the whole year in context, see Rio Tinto's year-round climate.

Daytime high
29°
1st warmest
Overnight low
25°
12th coldest
Rainfall
119 mm
21.8 wet days
Daylight
12 hours
5:29 AM – 5:31 PM
Cloud cover
53%
10th clearest
Wind
16 km/h
12th windiest
Solar energy
5.74 kWh/m²
Travel score
4.3
out of 10

Rio Tinto is human 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 29°C through the month.

A typical March day in Rio Tinto reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, March runs on par with February and on par with April.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292825
302825
312825

Rio Tinto weather by month

How March compares with the rest of the year at a glance. March is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°7118.612.44.9
Feb28° / 25°8719.412.24.4
Mar29° / 25°11921.8124.3
Apr28° / 25°16324.111.94.0
May28° / 24°16424.211.74.5
Jun27° / 24°17824.111.64.6
Jul26° / 23°15724.911.64.7
Aug26° / 23°7720.911.85.3
Sep27° / 23°4716.7125.9
Oct27° / 24°321412.26.2
Nov28° / 25°2811.412.36.3
Dec28° / 25°4214.512.45.5

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 17% of March, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36238
46238
56337
66238
76238
86238
96139
106238
116238
126139
136139
146139
156139
166040
175941
185941
195941
205941
215842
225743
235743
245743
255743
265743
275743
285743
295743
305743
315842

Chance of precipitation in March

Any precipitation

Rio Tinto gets around 119 mm of rain over 21.8 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 71% and peaks near 79% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
167
266
366
466
566
666
766
866
966
1066
1167
1267
1367
1468
1569
1669
1770
1871
1971
2072
2173
2273
2374
2475
2575
2676
2777
2877
2978
3078
3179

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10946
20946
31936
41936
51936
61936
71936
81936
91936
101927
111927
121927
131918
140928
150928
160919
170919
1809010
1909010
2009010
2109010
2208911
2308911
2408911
2508812
2608812
2708713
2808713
2908713
3008713
3108614

Wind in March

Winds average 16 km/h in March, the calmest month.

Across March, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 06 min at the start of March to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over March. Sunrise moves from 5:29 AM to 5:27 AM, and sunset from 5:38 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:295:38
212.15:295:37
312.15:295:37
412.15:295:37
512.15:295:36
612.15:295:36
712.15:295:35
812.15:295:35
912.15:295:35
1012.15:295:34
1112.15:295:34
1212.15:295:33
1312.15:295:33
1412.15:295:32
1512.15:295:32
1612.05:295:31
1712.05:285:31
1812.05:285:30
1912.05:285:30
2012.05:285:29
2112.05:285:29
2212.05:285:28
2312.05:285:28
2412.05:285:27
2512.05:285:27
2612.05:275:26
2712.05:275:26
2812.05:275:25
2912.05:275:25
3012.05:275:24
3112.05:275:24

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.74 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.15 kWh/m² in November across the year — March's 5.74 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.6Bright
235.6Bright
245.6Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.4Bright
315.4Bright
Planning a trip in March

Hazard calendar for Rio Tinto

In seasonPeak

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

Rio Tinto's rainy season runs February–July, when most of the year's rain falls.

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

Is March a good time to visit Rio Tinto?

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

4.3
Sightseeing
11th-best month of the year
5.2
Beach & pool
7th-best month of the year

March is a reasonable time to visit Rio Tinto for sightseeing.

What to pack for Rio Tinto in March

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

In March, Rio Tinto sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Rio Tinto in March

The nearest coast averages about 29°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 24 km away) is warmest in March at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Rio Tinto in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rio Tinto peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Rio Tinto?

Rio Tinto sits at 6.8°S, 35.1°W, 35 m above sea level, in Brazil. The nearest listed city is Mamanguape, 6.0 km away.

Topography around Rio Tinto

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

Within 3 km, the terrain around Rio Tinto has only modest variations in elevation — a maximum elevation change of 140 m around an average of 43 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 219 m; within 80 km, large variations in elevation — a maximum elevation change of 646 m.

The land around Rio Tinto is covered by grassland (40%) and trees (38%) within 3 km, grassland (38%), trees (27%) and cropland (22%) within 16 km, and grassland (47%) and water (28%) within 80 km.

3 km
140 m
16 km
219 m
80 km
646 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
March weather nearby: Mamanguape 6.0 km · Itapororoca 19 km · Araçagi 34 km · Cabedelo 34 km · Santa Rita 36 km · Sapé 37 km · Cruz do Espírito Santo 37 km · Mari 39 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 Rio Tinto (-6.8031°, -35.0806°, 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. 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).