Climate and average weather in São Fidélis

In São Fidélis, the weather is muggy, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around December.

Best: late April to late September

Over the course of the year, the temperature in São Fidélis typically varies from 16°C to 31°C, and is rarely below 13°C or above 34°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit São Fidélis for warm-weather activities is from late April to late September.

Hottest
Feb
31°
Coldest
Jul
16°
Wettest
Dec
277 mm
Driest
Jul
26 mm
Rain / yr
1491 mm
162 wet days
Daylight
10.7–13.3 h
shortest–longest
Elevation
22 m
21.6°S
Clearest
Jul
48% cloud

São Fidélis is settlement in Brazil.

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

São Fidélis weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late April to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in São Fidélis, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in São Fidélis stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 31°C and low of 21°C; the coolest is July, with an average low of 16°C and high of 25°C.

Days typically run about 9°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3021
Feb3121
Mar3021
Apr2820
May2617
Jun2516
Jul2516
Aug2616
Sep2717
Oct2719
Nov2820
Dec2921

How hot and cold São Fidélis really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, São Fidélis feels like about 34°C (around February 2). About 88 days a year carry some heat stress, peaking in February.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302121
Feb34312121
Mar32302121
Apr30281920
May26261717
Jun25251616
Jul25251516
Aug26261616
Sep26271717
Oct28271819
Nov29282020
Dec31292121

Average hourly temperature in São Fidélis

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 31°C, and coldest before dawn in July, near 16°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

São Fidélis weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°22419.113.23.8
Feb31° / 21°13414.912.74.0
Mar30° / 21°18719.112.24.1
Apr28° / 20°9914.111.55.5
May26° / 17°6510.4116.6
Jun25° / 16°285.810.77.6
Jul25° / 16°265.910.87.7
Aug26° / 16°296.511.37.4
Sep27° / 17°7210.211.96.5
Oct27° / 19°11613.812.55.7
Nov28° / 20°23720134.6
Dec29° / 21°27722.313.33.9

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

São Fidélis gets about 1491 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.9 months, from around Oct 19 to Apr 17, peaking in December at about 72% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 19.

December is the wettest month by volume, with 277 mm over about 22 wet days; July is the driest, with 26 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 8 · 72%Jun 19 · 18%
Rain on a day (%)Rain days
Jan6119
Feb5515
Mar6119
Apr4614
May3410
Jun206
Jul196
Aug217
Sep3310
Oct4514
Nov6720
Dec7122

Monthly rainfall

Over a full year, São Fidélis collects about 1491 mm of rain across 162 wet days — roughly 124 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 277 mm, while July is the driest at just 26 mm. The three wettest months alone bring about 49% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec224134187996528262972116237277
Rainfall (mm)Rain days
Jan22419
Feb13415
Mar18719
Apr9914
May6510
Jun286
Jul266
Aug297
Sep7210
Oct11614
Nov23720
Dec27722

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In São Fidélis, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 3 and lasts for 5.5 months, ending around September 17. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 61% of the time on average.

The cloudier part of the year begins around September 18 and lasts for 6.5 months, ending around April 2. The cloudiest month is November, when it is overcast or mostly cloudy 81% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJun 14 · 63%Dec 4 · 17%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3070
Feb3961
Mar3664
Apr4852
May5248
Jun6139
Jul6040
Aug5941
Sep4555
Oct2872
Nov1981
Dec2377

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 13 h 18 min of light; the shortest, around June 5, only 10 h 42 min — a swing of roughly 2 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.26:217:32
Feb12.76:397:24
Mar12.26:527:01
Apr11.57:026:32
May11.07:146:12
Jun10.77:276:08
Jul10.87:296:17
Aug11.37:146:29
Sep11.96:456:38
Oct12.56:176:47
Nov13.06:017:04
Dec13.36:047:23

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

São Fidélis averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 13 days.

The sunnier stretch runs 5.1 months, from around Apr 21 to Sep 22. The sunniest month is July, with roughly 13 sunny days (mixed).

The greyest month is December, down near 3 sunny days — about 76% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 2213 daysDec 32 days
Sunny daysSky
Jan6Gloomy
Feb7Gloomy
Mar6Gloomy
Apr7Gloomy
May9Mixed
Jun12Mixed
Jul13Mixed
Aug13Mixed
Sep10Mixed
Oct5Gloomy
Nov2Gloomy
Dec3Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In São Fidélis, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.9 months, from around October 13 to May 10. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around May 11 to October 12, and August is the most comfortable month — the air is dry or comfortable 37% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 2 · 40%Jan 1 · 0%oppressivemuggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan00133641
Feb00131671
Mar00333630
Apr021748320
May213404230
Jun421562000
Jul73056700
Aug82954900
Sep518502610
Oct210305070
Nov051849290
Dec01538560

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in São Fidélis is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmSep 11 · 7 km/hMar 31 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar5calm
Apr5calm
May5calm
Jun5calm
Jul6calm
Aug6calm
Sep7calm
Oct7calm
Nov6calm
Dec6calm

Hazard calendar for São Fidélis

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

São Fidélis'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

Best time to visit São Fidélis

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in São Fidélis throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid September, São Fidélis is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit São Fidélis for general outdoor tourist activities is from late April to late September, with a peak score in the first week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 3 · 7.7

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan3.8fair
Feb4.0fair
Mar4.1fair
Apr5.5fair
May6.6good
Jun7.6ideal
Jul7.7ideal
Aug7.4good
Sep6.5good
Oct5.6good
Nov4.6fair
Dec3.9fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit São Fidélis for hot-weather activities is from late March to late October, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 31 · 7.1

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for São Fidélis, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

São Fidélis packs about the same all year — highs hold near 31°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, São Fidélis sees daytime highs around 31°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

Sea temperature near São Fidélis

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 66 km away) 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 (midday) in São Fidélis by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in São Fidélis peaks around February 9 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 9UV 14Jun 23UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in São Fidélis

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan97
Feb8.57
Mar86
Apr74.5
May62.5
Jun5.50.5
Jul5.51
Aug6.53.5
Sep74
Oct86
Nov8.56.5
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

São Fidélis is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. São Fidélis banks about 4,760 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,0005,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan487
Feb445
Mar472
Apr413
May359
Jun320
Jul316
Aug331
Sep352
Oct399
Nov405
Dec460

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

São Fidélis receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.4 and 6.1 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Sep 30 to Apr 2. The brightest month is February, averaging about 6.0 kWh/m² (intense).

The dimmest month is June, down near 3.4 kWh/m² — roughly 43% less than the February peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseFeb 56.1 kWhJun 283.4 kWh
Solar energy (kWh/m²)Level
Jan6.0Bright
Feb6.1Intense
Mar5.1Bright
Apr4.4Bright
May3.6Moderate
Jun3.4Moderate
Jul3.5Moderate
Aug4.2Bright
Sep4.6Bright
Oct5.0Bright
Nov5.0Bright
Dec5.6Bright

Where is São Fidélis?

São Fidélis sits at 21.6°S, 41.7°W, 22 m above sea level, in Brazil. The nearest listed city is Cambuci, 19 km away.

Topography around São Fidélis

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

Within 3 km, the terrain around São Fidélis has significant variations in elevation — a maximum elevation change of 325 m around an average of 77 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,301 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,716 m.

The land around São Fidélis is covered by grassland (57%) and trees (26%) within 3 km, grassland (64%) and trees (34%) within 16 km, and grassland (65%) and trees (24%) within 80 km.

3 km
325 m
16 km
1,301 m
80 km
1,716 m
treesgrasslandcroplandartificial surfaceswaterwetland
Nearby: Cambuci 19 km · Itaocara 34 km · Campos dos Goytacazes 45 km · Santo Antônio de Pádua 46 km · Conceição de Macabu 50 km · Itaperuna 51 km · Miracema 53 km · Bom Jesus do Itabapoana 57 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 São Fidélis (-21.6461°, -41.7469°, elevation 22 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).