Climate and average weather in Beau Vallon

In Beau Vallon, 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 January.

Best: mid May to late November

Over the course of the year, the temperature in Beau Vallon typically varies from 25°C to 28°C, and is rarely below 24°C or above 29°C. April is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Beau Vallon for warm-weather activities are from late January to mid April and mid May to late November.

Hottest
Apr
28°
Coldest
Jul
25°
Wettest
Jan
220 mm
Driest
Jul
53 mm
Rain / yr
1522 mm
193 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
0 m
4.6°S
Clearest
Apr
52% cloud

Beau Vallon 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 May to late November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Beau Vallon stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 28°C and low of 27°C; the coolest is July, with an average low of 25°C and high of 26°C.

Days typically run about 1°C warmer than nights year-round.

18°20°22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2726
Feb2826
Mar2827
Apr2827
May2827
Jun2726
Jul2625
Aug2625
Sep2625
Oct2726
Nov2726
Dec2726

How hot and cold Beau Vallon 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, Beau Vallon feels like about 33°C (around April 21). About 47 days a year carry some heat stress, peaking in April.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan30272626
Feb31282626
Mar32282727
Apr32282727
May32282627
Jun27272626
Jul26262525
Aug26262525
Sep26262525
Oct27272626
Nov30272626
Dec30272626

Average hourly temperature in Beau Vallon

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 April afternoons, near 28°C, and coldest before dawn in July, near 25°C.

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

Beau Vallon 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
Jan27° / 26°22020.212.24.9
Feb28° / 26°12713.112.25.7
Mar28° / 27°10915.1125.4
Apr28° / 27°10816.911.95.0
May28° / 27°1381711.85.2
Jun27° / 26°871411.75.7
Jul26° / 25°5311.111.86.3
Aug26° / 25°6612.911.86.1
Sep26° / 25°12415.7125.7
Oct27° / 26°12715.912.15.8
Nov27° / 26°15317.612.25.4
Dec27° / 26°21123.412.34.6

Chance of rain

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

Beau Vallon gets about 1522 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.4 months, from around Oct 20 to Jan 30, peaking in December at about 78% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 26.

January is the wettest month by volume, with 220 mm over about 20 wet days; July is the driest, with 53 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 21 · 78%Jul 26 · 34%
Rain on a day (%)Rain days
Jan6520
Feb4813
Mar4915
Apr5517
May5517
Jun4714
Jul3711
Aug4113
Sep5216
Oct5216
Nov5918
Dec7423

Monthly rainfall

Over a full year, Beau Vallon collects about 1522 mm of rain across 193 wet days — roughly 127 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 220 mm, while July is the driest at just 53 mm. The three wettest months alone bring about 38% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec220127109108138875366124127153211
Rainfall (mm)Rain days
Jan22020
Feb12713
Mar10915
Apr10817
May13817
Jun8714
Jul5311
Aug6613
Sep12416
Oct12716
Nov15318
Dec21123

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Beau Vallon, 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 8 and lasts for 2.6 months, ending around May 25. The clearest month is April, when the sky is clear, mostly clear, or partly cloudy 63% of the time on average.

The cloudier part of the year begins around May 26 and lasts for 3.8 months, ending around September 17. The cloudiest month is July, when it is overcast or mostly cloudy 66% 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%JanFebMarAprMayJunJulAugSepOctNovDecApr 8 · 67%Jul 10 · 31%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3961
Feb4654
Mar5446
Apr6337
May5446
Jun3763
Jul3466
Aug3961
Sep4951
Oct6238
Nov5941
Dec4951

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. Close to the equator, Beau Vallon barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.26:206:35
Feb12.26:286:37
Mar12.06:276:29
Apr11.96:226:15
May11.86:216:08
Jun11.76:266:11
Jul11.86:316:17
Aug11.86:276:18
Sep12.06:136:12
Oct12.16:006:06
Nov12.25:576:10
Dec12.36:066:22

Sunny days

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

Beau Vallon averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 14 days.

The sunnier stretch runs 2.7 months, from around Mar 4 to May 24. The sunniest month is April, with roughly 13 sunny days (mixed).

The greyest month is July, down near 5 sunny days — about 64% fewer than the April peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightApr 814 daysJul 114 days
Sunny daysSky
Jan6Gloomy
Feb7Gloomy
Mar11Mixed
Apr13Mixed
May10Mixed
Jun6Gloomy
Jul5Gloomy
Aug6Gloomy
Sep8Mixed
Oct13Mixed
Nov12Mixed
Dec9Mixed

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.

Beau Vallon 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 January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Muggy (%)Oppressive (%)Miserable (%)
Jan1927
Feb28613
Mar07723
Apr06139
May05940
Jun38512
Jul9901
Aug11890
Sep6930
Oct5923
Nov2935
Dec1928

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 Beau Vallon is typically light breeze, near 19 km/h, and varies a lot with the seasons.

The windier part of the year lasts 4.9 months, from around May 17 to Oct 12. The windiest month is August, averaging about 27 km/h (breezy).

The calmer part of the year runs from around Oct 13 to May 16, with April the calmest month at about 13 km/h.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezywindyAug 11 · 28 km/hApr 10 · 12 km/h
Wind speed (km/h)Feels
Jan16light breeze
Feb16light breeze
Mar13light breeze
Apr13light breeze
May19light breeze
Jun25breezy
Jul26breezy
Aug27breezy
Sep25breezy
Oct18light breeze
Nov14light breeze
Dec15light breeze

Hazard calendar for Beau Vallon

In seasonPeak

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

Beau Vallon sits in the South Indian Ocean cyclone belt; the season peaks January–March.

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

Best time to visit Beau Vallon

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late November, Beau Vallon 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 times of year to visit Beau Vallon for general outdoor tourist activities run from late January to mid April and again from mid May to late November, with a peak score in the last week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJul 26 · 6.5

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
Jan4.9fair
Feb5.6good
Mar5.4fair
Apr5.0fair
May5.2fair
Jun5.7good
Jul6.3good
Aug6.1good
Sep5.7good
Oct5.8good
Nov5.4fair
Dec4.7fair

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 Beau Vallon for hot-weather activities is from mid January to early December, with a peak score in the first week of April.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationApr 7 · 6.3

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 Beau Vallon, 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.

Beau Vallon packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes, rain gear, sun protection and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In April, Beau Vallon sees daytime highs around 28°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 17 days see rain.

Sea temperature near Beau Vallon

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

The sea offshore is warmest in April at about 30°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°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May29Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep27Warm
Oct28Warm
Nov28Tropical
Dec28Tropical

UV index (midday) in Beau Vallon 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 Beau Vallon peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 15Jun 23UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Beau Vallon

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 March 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)
Jan8.56.5
Feb8.56.5
Mar8.57
Apr86.5
May86
Jun7.55
Jul7.55
Aug7.55.5
Sep86.5
Oct86.5
Nov86.5
Dec8.56.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Beau Vallon 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. Beau Vallon banks about 5,988 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan511
Feb475
Mar538
Apr527
May532
Jun483
Jul474
Aug474
Sep474
Oct503
Nov491
Dec506

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.

Beau Vallon receives about 5.8 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.1 and 6.3 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseMar 186.3 kWhJun 145.1 kWh
Solar energy (kWh/m²)Level
Jan5.7Bright
Feb6.2Intense
Mar6.3Intense
Apr6.0Intense
May5.5Bright
Jun5.1Bright
Jul5.3Bright
Aug5.7Bright
Sep5.9Bright
Oct6.2Intense
Nov6.2Intense
Dec5.8Bright

Where is Beau Vallon?

Beau Vallon sits at 4.6°S, 55.4°E, 0 m above sea level, in Seychelles. The nearest listed city is Victoria, 3.0 km away.

VictoriaTakamaka

Topography around Beau Vallon

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

Within 3 km, the terrain around Beau Vallon has large variations in elevation — a maximum elevation change of 910 m around an average of 226 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 928 m; within 80 km, large variations in elevation — a maximum elevation change of 887 m.

The land around Beau Vallon is covered by trees (71%) and water (22%) within 3 km, water (83%) within 16 km, and water (98%) within 80 km.

3 km
910 m
16 km
928 m
80 km
887 m
treesgrasslandartificial surfaceswater
Nearby: Victoria 3.0 km · Takamaka 18 km · Antsiranana 1,090 km · Iharan̈a 1,139 km · Ambilobe 1,183 km · Antsohimbondrona 1,186 km · Sambava 1,218 km · Ambarakaraka 1,222 km

Seychelles travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
240 V · 50 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$19,449
2025
Safe drinking water
65%
of population, 2024
Homicide rate
8
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Roman Catholic 76%Protestant 11%other Christian 2%Hindu 2%

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 Beau Vallon (-4.6209°, 55.4301°, elevation 0 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).