Climate and average weather in Bata

In Bata, the weather is oppressive, hot, wet, and mostly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around October.

Best: mid June to late August

Over the course of the year, the temperature in Bata typically varies from 23°C to 29°C, and is rarely below 22°C or above 31°C. March is the hottest month of the year, while August is the coldest.

Based on the travel score, the best time of year to visit Bata for warm-weather activities is from mid June to late August.

Hottest
Mar
29°
Coldest
Aug
23°
Wettest
Oct
335 mm
Driest
Aug
96 mm
Rain / yr
2590 mm
317 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
13 m
1.9°N
Clearest
Jan
78% cloud

Bata is most populous city in Equatorial Guinea.

Density
69/km²
people per km²
Founded
1851

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

Bata 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 June to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Bata stay fairly even through the year, without a distinct hot or cool season. The warmest month is March, with an average high of 29°C and low of 25°C; the coolest is August, with an average low of 23°C and high of 26°C.

Days typically run about 4°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2924
Feb2925
Mar2925
Apr2925
May2925
Jun2724
Jul2623
Aug2623
Sep2724
Oct2824
Nov2824
Dec2824

How hot and cold Bata 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, Bata feels like about 35°C (around March 8). About 157 days a year carry some heat stress, peaking in March.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan32292424
Feb34292525
Mar35292525
Apr35292525
May33292525
Jun30272424
Jul26262323
Aug26262323
Sep28272324
Oct30282424
Nov31282424
Dec32282424

Average hourly temperature in Bata

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 March afternoons, near 29°C, and coldest before dawn in August, near 23°C.

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

Bata 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
Jan29° / 24°16428.211.93.3
Feb29° / 25°16825.811.93.1
Mar29° / 25°23628.6122.9
Apr29° / 25°25628.1122.9
May29° / 25°26529.512.13.0
Jun27° / 24°17922.412.14.3
Jul26° / 23°11017.212.15.2
Aug26° / 23°9619.712.14.8
Sep27° / 24°24527.6123.6
Oct28° / 24°33530.7123.2
Nov28° / 24°32529.811.93.2
Dec28° / 24°21329.711.93.2

Chance of rain

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

Bata gets about 2590 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 8.8 months, from around Sep 9 to Jun 4, peaking in October at about 100% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 27.

October is the wettest month by volume, with 335 mm over about 31 wet days; August is the driest, with 96 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetOct 18 · 100%Jul 27 · 50%
Rain on a day (%)Rain days
Jan9128
Feb9226
Mar9329
Apr9328
May9530
Jun7522
Jul5617
Aug6420
Sep9128
Oct9931
Nov9930
Dec9630

Monthly rainfall

Over a full year, Bata collects about 2590 mm of rain across 317 wet days — roughly 216 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 335 mm, while August is the driest at just 96 mm. The three wettest months alone bring about 36% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec16416823625626517911096245335325213
Rainfall (mm)Rain days
Jan16428
Feb16826
Mar23629
Apr25628
May26530
Jun17922
Jul11017
Aug9620
Sep24528
Oct33531
Nov32530
Dec21330

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Bata, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around November 25 and lasts for 3.7 months, ending around March 18. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 19% of the time on average.

The cloudier part of the year begins around June 25 and lasts for 5.0 months, ending around November 24. The cloudiest month is October, when it is overcast or mostly cloudy 98% 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 4 · 22%Sep 26 · 2%partly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan1981
Feb1684
Mar1189
Apr991
May892
Jun1090
Jul991
Aug694
Sep397
Oct298
Nov793
Dec1783

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, Bata barely changes through the year: days stay near 12 h 06 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.96:336:27
Feb11.96:376:34
Mar12.06:316:30
Apr12.06:206:22
May12.16:156:20
Jun12.16:186:24
Jul12.16:246:29
Aug12.16:236:27
Sep12.06:156:16
Oct12.06:076:05
Nov11.96:096:04
Dec11.96:206:14

Sunny days

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

Bata gets about 0 sunny days a month gloomy — and it barely shifts through the year, holding between 0 and 1 days every month. Clear skies here are a flat line, not a season.

05JanFebMarAprMayJunJulAugSepOctNovDecgloomyFeb 91 daysJul 200 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar1Gloomy
Apr0Gloomy
May0Gloomy
Jun0Gloomy
Jul0Gloomy
Aug0Gloomy
Sep0Gloomy
Oct0Gloomy
Nov0Gloomy
Dec0Gloomy

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.

Bata 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 (%)
Jan06832
Feb05050
Mar03862
Apr03862
May05149
Jun1918
Jul11890
Aug9910
Sep1990
Oct0973
Nov08812
Dec07822

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 Bata is typically calm, near 8 km/h, and varies moderately with the seasons.

The windier part of the year lasts 4.2 months, from around May 29 to Oct 3. The windiest month is August, averaging about 11 km/h (calm).

The calmer part of the year runs from around Oct 4 to May 28, with April the calmest month at about 6 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 4 · 12 km/hApr 24 · 6 km/h
Wind speed (km/h)Feels
Jan6calm
Feb7calm
Mar6calm
Apr6calm
May7calm
Jun10calm
Jul11calm
Aug11calm
Sep9calm
Oct7calm
Nov6calm
Dec6calm

Best time to visit Bata

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late August, Bata 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 Bata for general outdoor tourist activities is from mid June to late August, with a peak score in the last week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 26 · 5.4

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
Jan3.3poor
Feb3.1poor
Mar2.9poor
Apr2.9poor
May3.0poor
Jun4.3fair
Jul5.2fair
Aug4.8fair
Sep3.6fair
Oct3.2poor
Nov3.2poor
Dec3.2poor

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 Bata for hot-weather activities is from mid June to late August, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 26 · 5.3

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 Bata, 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.

Bata packs about the same all year — highs hold near 29°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 March, Bata sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

Sea temperature near Bata

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 16 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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec28Tropical

UV index (midday) in Bata 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 Bata peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 24UV 13Dec 18UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar14Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov11Extreme
Dec9Very high

Average hourly UV index in Bata

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 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.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan7.55.5
Feb7.55.5
Mar86.5
Apr86
May85.5
Jun7.55
Jul7.55
Aug7.55
Sep86
Oct86
Nov7.55.5
Dec74.5

Air quality in Bata by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Bata is worst in February — around 39 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (October, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateFeb 1238 µg/m³Oct 1210 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb39Poor
Mar27Moderate
Apr20Moderate
May17Moderate
Jun21Moderate
Jul22Moderate
Aug17Moderate
Sep11Good
Oct10Good
Nov15Moderate
Dec27Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Bata 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. Bata banks about 5,831 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan507
Feb470
Mar529
Apr510
May515
Jun469
Jul457
Aug456
Sep456
Oct484
Nov478
Dec501

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.

Bata receives about 4.1 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 3.6 and 4.8 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightMar 54.8 kWhJul 103.6 kWh
Solar energy (kWh/m²)Level
Jan4.4Bright
Feb4.7Bright
Mar4.8Bright
Apr4.7Bright
May4.2Bright
Jun3.7Moderate
Jul3.6Moderate
Aug3.7Moderate
Sep3.8Moderate
Oct3.9Moderate
Nov4.0Bright
Dec4.2Bright

Where is Bata?

Bata sits at 1.9°N, 9.8°E, 13 m above sea level, in Equatorial Guinea. The nearest listed city is Kribi, 120 km away.

KribiCiudad de la PazEbebiyinAmbam

Topography around Bata

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

Within 3 km, the terrain around Bata has only modest variations in elevation — a maximum elevation change of 40 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 380 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,211 m.

The land around Bata is covered by water (47%) and artificial surfaces (41%) within 3 km, water (49%) and trees (40%) within 16 km, and trees (67%) and water (31%) within 80 km.

3 km
40 m
16 km
380 m
80 km
1,211 m
treesgrasslandartificial surfaceswatermangroves
Nearby: Kribi 120 km · Ciudad de la Paz 121 km · Akanda 148 km · Ntoum 164 km · Libreville 167 km · Ebebiyin 177 km · Owendo 177 km · Ambam 178 km

Equatorial Guinea travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,615
2025
Road deaths
27.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Roman Catholic 88%Protestant 5%other 5%Muslim 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 Bata (1.8639°, 9.7658°, elevation 13 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).