Climate and average weather in Serra
In Serra, 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 November.
Over the course of the year, the temperature in Serra typically varies from 20°C to 28°C, and is rarely below 18°C or above 30°C. February is the hottest month of the year, while August is the coldest.
Based on the travel score, the best time of year to visit Serra for warm-weather activities is from mid April to late October.
- Hottest
- Feb
- 28°
- Coldest
- Aug
- 20°
- Wettest
- Nov
- 177 mm
- Driest
- Jun
- 34 mm
- Rain / yr
- 1028 mm
- 140 wet days
- Daylight
- 10.8–13.2 h
- shortest–longest
- Elevation
- 57 m
- 20.1°S
- Clearest
- Jul
- 42% cloud
Serra is human settlement in Brazil.
- Air quality
- Good
- PM10 17.8 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Serra 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 mid April to late October.
Temperature through the year
Daily average highs and lows in Serra, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Serra stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 28°C and low of 24°C; the coolest is August, with an average low of 20°C and high of 24°C.
Days typically run about 4°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 25 | 25 | 26 | 27 |
| Avg low (°C) | 24 | 24 | 24 | 23 | 22 | 21 | 20 | 20 | 21 | 22 | 23 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 28 | 24 |
| Feb | 28 | 24 |
| Mar | 28 | 24 |
| Apr | 27 | 23 |
| May | 26 | 22 |
| Jun | 25 | 21 |
| Jul | 24 | 20 |
| Aug | 24 | 20 |
| Sep | 25 | 21 |
| Oct | 25 | 22 |
| Nov | 26 | 23 |
| Dec | 27 | 24 |
Average hourly temperature in Serra
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 28°C, and coldest before dawn in August, near 20°C.
Serra weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 24° | 100 | 12 | 13.1 | 6.0 |
| Feb | 28° / 24° | 68 | 11.5 | 12.7 | 5.6 |
| Mar | 28° / 24° | 122 | 15.8 | 12.1 | 5.4 |
| Apr | 27° / 23° | 86 | 13.8 | 11.6 | 6.1 |
| May | 26° / 22° | 60 | 10.5 | 11.1 | 6.9 |
| Jun | 25° / 21° | 34 | 7.7 | 10.8 | 7.6 |
| Jul | 24° / 20° | 41 | 9.2 | 10.9 | 7.5 |
| Aug | 24° / 20° | 41 | 8.9 | 11.3 | 7.5 |
| Sep | 25° / 21° | 50 | 10.1 | 11.9 | 7.0 |
| Oct | 25° / 22° | 93 | 10.9 | 12.5 | 6.6 |
| Nov | 26° / 23° | 177 | 15.3 | 13 | 5.6 |
| Dec | 27° / 24° | 156 | 14.6 | 13.2 | 5.7 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Serra gets about 1028 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 3.0 months, from around Oct 24 to Jan 22, peaking in November at about 52% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 17.
November is the wettest month by volume, with 177 mm over about 15 wet days; June is the driest, with 34 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 39 | 42 | 51 | 45 | 35 | 26 | 29 | 29 | 34 | 36 | 50 | 47 |
| Rain days | 12 | 12 | 16 | 14 | 11 | 8 | 9 | 9 | 10 | 11 | 15 | 15 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 39 | 12 |
| Feb | 42 | 12 |
| Mar | 51 | 16 |
| Apr | 45 | 14 |
| May | 35 | 11 |
| Jun | 26 | 8 |
| Jul | 29 | 9 |
| Aug | 29 | 9 |
| Sep | 34 | 10 |
| Oct | 36 | 11 |
| Nov | 50 | 15 |
| Dec | 47 | 15 |
Monthly rainfall
Over a full year, Serra collects about 1028 mm of rain across 140 wet days — roughly 86 mm in an average month.
It doesn’t fall evenly. November is the wettest month with 177 mm, while June is the driest at just 34 mm. The three wettest months alone bring about 44% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 100 | 68 | 122 | 86 | 60 | 34 | 41 | 41 | 50 | 93 | 177 | 156 |
| Rain days | 12 | 12 | 16 | 14 | 11 | 8 | 9 | 9 | 10 | 11 | 15 | 15 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 100 | 12 |
| Feb | 68 | 12 |
| Mar | 122 | 16 |
| Apr | 86 | 14 |
| May | 60 | 11 |
| Jun | 34 | 8 |
| Jul | 41 | 9 |
| Aug | 41 | 9 |
| Sep | 50 | 10 |
| Oct | 93 | 11 |
| Nov | 177 | 15 |
| Dec | 156 | 15 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Serra, 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 March 27 and lasts for 5.8 months, ending around September 20. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 72% of the time on average.
The cloudier part of the year begins around September 21 and lasts for 6.1 months, ending around March 26. The cloudiest month is November, when it is overcast or mostly cloudy 67% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 46 | 54 | 52 | 65 | 68 | 72 | 72 | 72 | 60 | 46 | 33 | 35 |
| Cloudier (%) | 54 | 46 | 48 | 35 | 32 | 28 | 28 | 28 | 40 | 54 | 67 | 65 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 46 | 54 |
| Feb | 54 | 46 |
| Mar | 52 | 48 |
| Apr | 65 | 35 |
| May | 68 | 32 |
| Jun | 72 | 28 |
| Jul | 72 | 28 |
| Aug | 72 | 28 |
| Sep | 60 | 40 |
| Oct | 46 | 54 |
| Nov | 33 | 67 |
| Dec | 35 | 65 |
Daylight, sunrise and sunset
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 12 min of light; the shortest, around June 4, only 10 h 48 min — a swing of roughly 2 h 24 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.1 | 12.7 | 12.1 | 11.6 | 11.1 | 10.8 | 10.9 | 11.3 | 11.9 | 12.5 | 13.0 | 13.2 |
| Sunrise (AM) | 6:18 | 6:35 | 6:47 | 6:55 | 7:06 | 7:18 | 7:20 | 7:06 | 6:39 | 6:12 | 5:57 | 6:01 |
| Sunset (PM) | 7:23 | 7:16 | 6:55 | 6:28 | 6:09 | 6:05 | 6:14 | 6:25 | 6:32 | 6:40 | 6:56 | 7:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 13.1 | 6:18 | 7:23 |
| Feb | 12.7 | 6:35 | 7:16 |
| Mar | 12.1 | 6:47 | 6:55 |
| Apr | 11.6 | 6:55 | 6:28 |
| May | 11.1 | 7:06 | 6:09 |
| Jun | 10.8 | 7:18 | 6:05 |
| Jul | 10.9 | 7:20 | 6:14 |
| Aug | 11.3 | 7:06 | 6:25 |
| Sep | 11.9 | 6:39 | 6:32 |
| Oct | 12.5 | 6:12 | 6:40 |
| Nov | 13.0 | 5:57 | 6:56 |
| Dec | 13.2 | 6:01 | 7:14 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Serra averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 17 days.
The sunnier stretch runs 5.8 months, from around Mar 25 to Sep 18. The sunniest month is June, with roughly 16 sunny days (bright).
The greyest month is November, down near 5 sunny days — about 67% fewer than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 11 | 11 | 11 | 13 | 15 | 16 | 16 | 15 | 12 | 9 | 5 | 7 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Bright | Bright | Bright | Mixed | Mixed | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 11 | Mixed |
| Feb | 11 | Mixed |
| Mar | 11 | Mixed |
| Apr | 13 | Mixed |
| May | 15 | Mixed |
| Jun | 16 | Bright |
| Jul | 16 | Bright |
| Aug | 15 | Bright |
| Sep | 12 | Mixed |
| Oct | 9 | Mixed |
| Nov | 5 | Gloomy |
| Dec | 7 | Gloomy |
Humidity comfort
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.
Serra is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.
The stickiest month is January, when it feels muggy, oppressive or miserable about 100% of the time. Even in August, the mildest month, the air is dry or comfortable only 11% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 2 | 4 | 6 | 10 | 7 | 4 | 1 | 0 |
| Humid (%) | 0 | 0 | 0 | 5 | 18 | 23 | 31 | 32 | 22 | 15 | 7 | 1 |
| Muggy (%) | 5 | 2 | 7 | 25 | 50 | 66 | 61 | 57 | 64 | 50 | 32 | 12 |
| Oppressive (%) | 91 | 89 | 82 | 68 | 30 | 7 | 1 | 0 | 7 | 31 | 60 | 86 |
| Miserable (%) | 5 | 8 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 0 | 5 | 91 | 5 |
| Feb | 0 | 0 | 0 | 2 | 89 | 8 |
| Mar | 0 | 0 | 0 | 7 | 82 | 11 |
| Apr | 0 | 0 | 5 | 25 | 68 | 2 |
| May | 0 | 2 | 18 | 50 | 30 | 0 |
| Jun | 0 | 4 | 23 | 66 | 7 | 0 |
| Jul | 0 | 6 | 31 | 61 | 1 | 0 |
| Aug | 1 | 10 | 32 | 57 | 0 | 0 |
| Sep | 1 | 7 | 22 | 64 | 7 | 0 |
| Oct | 0 | 4 | 15 | 50 | 31 | 0 |
| Nov | 0 | 1 | 7 | 32 | 60 | 0 |
| Dec | 0 | 0 | 1 | 12 | 86 | 2 |
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.
Across the year, average wind speed in Serra is typically light breeze, near 15 km/h, and varies little with the seasons.
The windier part of the year lasts 5.9 months, from around Aug 16 to Feb 10. The windiest month is October, averaging about 17 km/h (light breeze).
The calmer part of the year runs from around Feb 11 to Aug 15, with June the calmest month at about 13 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 16 | 14 | 13 | 13 | 13 | 13 | 13 | 15 | 16 | 17 | 16 | 16 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 16 | light breeze |
| Feb | 14 | light breeze |
| Mar | 13 | light breeze |
| Apr | 13 | light breeze |
| May | 13 | light breeze |
| Jun | 13 | light breeze |
| Jul | 13 | light breeze |
| Aug | 15 | light breeze |
| Sep | 16 | light breeze |
| Oct | 17 | light breeze |
| Nov | 16 | light breeze |
| Dec | 16 | light breeze |
Hazard calendar for Serra
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Serra's rainy season runs October–January, when most of the year's rain falls.
Best time to visit Serra
To characterize how pleasant the weather is in Serra throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late October, Serra 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 Serra for general outdoor tourist activities is from mid April to late October, with a peak score in the third week of June.
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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 6.0 | 5.5 | 5.4 | 6.1 | 6.9 | 7.6 | 7.5 | 7.5 | 7.0 | 6.6 | 5.7 | 5.7 |
| Rating | good | good | fair | good | good | ideal | good | good | good | good | good | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 6.0 | good |
| Feb | 5.5 | good |
| Mar | 5.4 | fair |
| Apr | 6.1 | good |
| May | 6.9 | good |
| Jun | 7.6 | ideal |
| Jul | 7.5 | good |
| Aug | 7.5 | good |
| Sep | 7.0 | good |
| Oct | 6.6 | good |
| Nov | 5.7 | good |
| Dec | 5.7 | good |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, Serra suits hot-weather activities for most of the year, with a peak score in the second week of June.
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 Serra, by month
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.
Serra packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes, rain gear and sun protection.
In February, Serra sees daytime highs around 28°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.
Sea temperature near Serra
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 19 km away) is warmest in March at about 27°C and coldest in August near 23°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 27 | 27 | 27 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 25 | Warm |
| Jun | 24 | Warm |
| Jul | 23 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 24 | Refreshing |
| Nov | 25 | Warm |
| Dec | 25 | Warm |
UV index (midday) in Serra by month
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 Serra peaks around February 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 14 | 13 | 10 | 7 | 6 | 7 | 8 | 10 | 12 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 7 | High |
| Aug | 8 | Very high |
| Sep | 10 | Very high |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Average hourly UV index in Serra
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 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 8.5 | 8.5 | 8 | 7 | 6 | 5.5 | 6 | 7 | 7.5 | 8 | 8.5 | 8.5 |
| UV ≥ 6 (h/day) | 6.5 | 6.5 | 6 | 5 | 3 | 2 | 2.5 | 4 | 5 | 6 | 6.5 | 6.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 8.5 | 6.5 |
| Feb | 8.5 | 6.5 |
| Mar | 8 | 6 |
| Apr | 7 | 5 |
| May | 6 | 3 |
| Jun | 5.5 | 2 |
| Jul | 6 | 2.5 |
| Aug | 7 | 4 |
| Sep | 7.5 | 5 |
| Oct | 8 | 6 |
| Nov | 8.5 | 6.5 |
| Dec | 8.5 | 6.5 |
Growing season
Serra is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
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. Serra banks about 5,142 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 493 | 454 | 498 | 453 | 420 | 379 | 372 | 371 | 380 | 419 | 428 | 475 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 493 |
| Feb | 454 |
| Mar | 498 |
| Apr | 453 |
| May | 420 |
| Jun | 379 |
| Jul | 372 |
| Aug | 371 |
| Sep | 380 |
| Oct | 419 |
| Nov | 428 |
| Dec | 475 |
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.
Serra receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.6 and 6.4 kWh/m².
The brighter stretch of the year lasts 6.4 months, from around Sep 22 to Apr 3. The brightest month is February, averaging about 6.3 kWh/m² (intense).
The dimmest month is June, down near 3.7 kWh/m² — roughly 42% less than the February peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.4 | 6.4 | 5.5 | 4.7 | 4.0 | 3.6 | 3.8 | 4.3 | 5.0 | 5.4 | 5.3 | 5.9 |
| Level | Intense | Intense | Bright | Bright | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.4 | Intense |
| Feb | 6.4 | Intense |
| Mar | 5.5 | Bright |
| Apr | 4.7 | Bright |
| May | 4.0 | Moderate |
| Jun | 3.6 | Moderate |
| Jul | 3.8 | Moderate |
| Aug | 4.3 | Bright |
| Sep | 5.0 | Bright |
| Oct | 5.4 | Bright |
| Nov | 5.3 | Bright |
| Dec | 5.9 | Bright |
Where is Serra?
Serra sits at 20.1°S, 40.3°W, 57 m above sea level, in Brazil. The nearest listed city is Cariacica, 19 km away.
Topography around Serra
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Serra.
Within 3 km, the terrain around Serra has significant variations in elevation — a maximum elevation change of 439 m around an average of 63 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 800 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,872 m.
The land around Serra is covered by trees (43%), grassland (35%) and artificial surfaces (21%) within 3 km, trees (44%) and grassland (31%) within 16 km, and trees (42%), water (30%) and grassland (25%) within 80 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
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 Serra (-20.1286°, -40.3078°, elevation 57 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).