Climate and average weather in Tanjay

In Tanjay, 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 July.

Best: late December to mid April

Over the course of the year, the temperature in Tanjay typically varies from 24°C to 30°C, and is rarely below 23°C or above 31°C. May is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Tanjay for warm-weather activities is from late December to mid April.

Hottest
May
30°
Coldest
Jan
24°
Wettest
Jul
198 mm
Driest
Apr
78 mm
Rain / yr
1770 mm
259 wet days
Daylight
11.4–12.6 h
shortest–longest
Elevation
10 m
9.5°N
Clearest
Apr
56% cloud

Tanjay is city of the Philippines in the province of Negros Oriental.

Density
317/km²
people per km²
Founded
1580

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

Tanjay 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 December to mid April.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Tanjay stay fairly even through the year, without a distinct hot or cool season. The warmest month is May, with an average high of 30°C and low of 26°C; the coolest is January, with an average low of 24°C and high of 28°C.

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

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2824
Feb2824
Mar2925
Apr3025
May3026
Jun2925
Jul2925
Aug2925
Sep2925
Oct2925
Nov2925
Dec2825

How hot and cold Tanjay 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, Tanjay feels like about 36°C (around May 12). About 263 days a year carry some heat stress, peaking in May.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan30282424
Feb31282424
Mar32292425
Apr34302525
May36302626
Jun34292525
Jul33292525
Aug33292525
Sep33292525
Oct33292525
Nov33292525
Dec32282525

Average hourly temperature in Tanjay

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 May afternoons, near 30°C, and coldest before dawn in January, near 24°C.

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

Tanjay 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
Jan28° / 24°11118.511.55.0
Feb28° / 24°10213.311.75.6
Mar29° / 25°9314.311.95.2
Apr30° / 25°7815.112.24.6
May30° / 26°13923.412.43.5
Jun29° / 25°19125.712.53.2
Jul29° / 25°19826.112.53.3
Aug29° / 25°16223.612.33.6
Sep29° / 25°17724.812.13.4
Oct29° / 25°19427.111.83.3
Nov29° / 25°16224.311.63.6
Dec28° / 25°16323.211.54.2

Chance of rain

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

Tanjay gets about 1770 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 7.6 months, from around May 8 to Dec 24, peaking in June at about 89% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 27.

July is the wettest month by volume, with 198 mm over about 26 wet days; April is the driest, with 78 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdrierwettermostly drysome rainoften wetvery wetJun 25 · 89%Feb 27 · 42%
Rain on a day (%)Rain days
Jan5919
Feb4813
Mar4614
Apr5215
May7523
Jun8526
Jul8426
Aug7724
Sep8325
Oct8727
Nov8224
Dec7423

Monthly rainfall

Over a full year, Tanjay collects about 1770 mm of rain across 259 wet days — roughly 147 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 198 mm, while April is the driest at just 78 mm. The three wettest months alone bring about 33% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec1111029378139191198162177194162163
Rainfall (mm)Rain days
Jan11119
Feb10213
Mar9314
Apr7815
May13923
Jun19126
Jul19826
Aug16224
Sep17725
Oct19427
Nov16224
Dec16323

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Tanjay, 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 November 8 and lasts for 6.3 months, ending around May 19. The clearest month is April, when the sky is clear, mostly clear, or partly cloudy 53% of the time on average.

The cloudier part of the year begins around May 20 and lasts for 5.7 months, ending around November 7. The cloudiest month is July, when it is overcast or mostly cloudy 90% 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 7 · 56%Jul 29 · 8%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan3367
Feb4159
Mar4852
Apr5347
May3070
Jun1486
Jul1090
Aug1288
Sep1288
Oct1783
Nov3169
Dec3268

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 June 15, brings about 12 h 36 min of light; the shortest, around December 15, only 11 h 24 min — a swing of roughly 1 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.56:125:42
Feb11.76:115:53
Mar11.95:595:55
Apr12.25:415:54
May12.45:315:57
Jun12.55:316:04
Jul12.55:386:08
Aug12.35:426:01
Sep12.15:405:43
Oct11.85:395:26
Nov11.65:465:19
Dec11.56:005:27

Sunny days

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

Tanjay averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 12 days.

The sunnier stretch runs 4.6 months, from around Dec 24 to May 13. The sunniest month is April, with roughly 11 sunny days (mixed).

The greyest month is July, down near 1 sunny days — about 90% fewer than the April peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedApr 612 daysJul 291 days
Sunny daysSky
Jan6Gloomy
Feb6Gloomy
Mar9Mixed
Apr11Mixed
May5Gloomy
Jun2Gloomy
Jul1Gloomy
Aug1Gloomy
Sep1Gloomy
Oct2Gloomy
Nov4Gloomy
Dec5Gloomy

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.

Tanjay 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%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressive
Muggy (%)Oppressive (%)Miserable (%)
Jan4915
Feb5933
Mar2908
Apr06139
May03763
Jun05941
Jul08020
Aug07822
Sep08119
Oct07921
Nov06733
Dec17623

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 Tanjay is typically calm, near 9 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.0 months, from around Nov 15 to Apr 14. The windiest month is January, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Apr 15 to Nov 14, with May the calmest month at about 7 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 31 · 13 km/hMay 30 · 6 km/h
Wind speed (km/h)Feels
Jan13light breeze
Feb13light breeze
Mar11calm
Apr9calm
May7calm
Jun7calm
Jul8calm
Aug8calm
Sep8calm
Oct7calm
Nov9calm
Dec11calm

Hazard calendar for Tanjay

In seasonPeak

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

Tanjay sits in the Pacific typhoon belt; the season peaks July–October.

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

Best time to visit Tanjay

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early April, Tanjay 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 Tanjay for general outdoor tourist activities is from late December to mid April, with a peak score in the last week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 22 · 5.7

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
Jan5.0fair
Feb5.5good
Mar5.2fair
Apr4.6fair
May3.5poor
Jun3.2poor
Jul3.4poor
Aug3.5fair
Sep3.4poor
Oct3.3poor
Nov3.6fair
Dec4.2fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationApr 3 · 6.4

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 Tanjay, 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.

Tanjay packs about the same all year — highs hold near 30°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 May, Tanjay sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

Sea temperature near Tanjay

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 27 km away) is warmest in June at about 30°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index (midday) in Tanjay 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 Tanjay peaks around March 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 highMar 22UV 15Dec 12UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec10Very high

Average hourly UV index in Tanjay

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
Feb86
Mar86.5
Apr8.56.5
May8.56.5
Jun8.56.5
Jul86
Aug86.5
Sep86
Oct7.55.5
Nov75
Dec75
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Tanjay 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. Tanjay banks about 6,129 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around May.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan492
Feb446
Mar511
Apr520
May548
Jun520
Jul524
Aug526
Sep508
Oct523
Nov503
Dec507

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.

Tanjay receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.4 and 6.3 kWh/m².

The brighter stretch of the year lasts 4.0 months, from around Feb 12 to Jun 12. The brightest month is April, averaging about 6.2 kWh/m² (intense).

The dimmest month is December, down near 4.4 kWh/m² — roughly 29% less than the April peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseApr 106.3 kWhDec 184.4 kWh
Solar energy (kWh/m²)Level
Jan4.6Bright
Feb5.2Bright
Mar6.0Bright
Apr6.3Intense
May5.6Bright
Jun5.0Bright
Jul4.8Bright
Aug5.1Bright
Sep4.9Bright
Oct4.7Bright
Nov4.7Bright
Dec4.4Bright

Where is Tanjay?

Tanjay sits at 9.5°N, 123.2°E, 10 m above sea level, in Philippines. The nearest listed city is Bais, 9.0 km away.

Topography around Tanjay

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

Within 3 km, the terrain around Tanjay has only modest variations in elevation — a maximum elevation change of 25 m around an average of 5 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,082 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,814 m.

The land around Tanjay is covered by water (30%), trees (25%) and cropland (25%) within 3 km, trees (44%) and water (43%) within 16 km, and water (53%) and trees (40%) within 80 km.

3 km
25 m
16 km
1,082 m
80 km
1,814 m
treesgrasslandcroplandartificial surfaceswatermangroves
Nearby: Bais 9.0 km · Sibulan 22 km · Dumaguete 29 km · Santa Catalina 38 km · Bayawan 42 km · Kabankalan 64 km · Guihulñgan 68 km · Suay 69 km

Philippines travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,171
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
4.3
per 100k, 2023
Road deaths
12
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 569
Religion
Roman Catholic 79%other 8%Muslim 6%other Christian 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 Tanjay (9.5162°, 123.158°, elevation 10 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).