Tiwi weather in September

In September, Tiwi sees average daytime highs of 29°C and overnight lows near 25°C, with 207 mm of rain across 25.3 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 4% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Tiwi's 10th-clearest and 12th-windiest month. For the whole year in context, see Tiwi's year-round climate.

Daytime high
29°
5th warmest
Overnight low
25°
8th coldest
Rainfall
207 mm
25.3 wet days
Daylight
12 h 06 min
5:37 AM – 5:42 PM
Cloud cover
86%
10th clearest
Wind
9 km/h
12th windiest
Solar energy
5.18 kWh/m²
Travel score
3.2
out of 10

Tiwi is municipality of the Philippines in the province of Albay.

Density
159/km²
people per km²
Founded
1696

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical September day in Tiwi reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925

How September really feels in Tiwi

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tiwi weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°3152611.34.2
Feb27° / 24°2082011.64.7
Mar28° / 24°17320.211.94.8
Apr29° / 25°8616.412.34.7
May30° / 26°12719.612.63.8
Jun30° / 26°15322.112.83.4
Jul30° / 25°2232712.73.0
Aug30° / 25°17024.412.43.3
Sep29° / 25°20725.312.13.2
Oct29° / 25°2512711.73.4
Nov28° / 25°28627.711.43.5
Dec27° / 24°43728.311.23.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11387
21387
31387
41288
51288
61288
71288
81189
91189
101090
11991
12991
13991
14892
15892
16892
17892
18991
191090
201090
211090
221288
231288
241288
251486
261486
271486
281585
291684
301783

Chance of precipitation in September

Any precipitation

Tiwi gets around 207 mm of rain over 25.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 84% and peaks near 88% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
179
279
380
480
581
681
781
882
982
1083
1183
1284
1384
1484
1585
1685
1785
1886
1986
2086
2186
2286
2386
2487
2587
2687
2788
2888
2988
3088

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11882
21882
31882
41882
51981
61981
71981
82080
92080
102080
112080
122179
132179
142179
152179
162080
172080
182080
192080
202080
212080
222080
232080
242080
252179
262179
272278
282377
292476
302575

Wind in September

Winds average 9 km/h in September, the calmest month.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 5:37 AM to 5:38 AM, and sunset from 5:53 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:375:53
212.35:375:52
312.25:375:51
412.25:375:51
512.25:375:50
612.25:375:49
712.25:375:49
812.25:375:48
912.25:375:47
1012.25:375:46
1112.15:375:46
1212.15:375:45
1312.15:375:44
1412.15:375:43
1512.15:375:43
1612.15:375:42
1712.15:375:41
1812.05:375:40
1912.05:375:40
2012.05:375:39
2112.05:375:38
2212.05:375:37
2312.05:385:37
2412.05:385:36
2512.05:385:35
2611.95:385:34
2711.95:385:34
2811.95:385:33
2911.95:385:32
3011.95:385:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.18 kWh/m².

For context, solar energy here swings from a low near 3.81 kWh/m² to a high of 6.45 kWh/m² in April across the year — September's 5.18 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Tiwi

In seasonPeak

In September, Tiwi sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Tiwi 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

Is September a good time to visit Tiwi?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.2
Sightseeing
11th-best month of the year
4.2
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Tiwi.

What to pack for Tiwi in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Tiwi sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Tiwi in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in June at about 30°C and coldest in January near 27°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr29Tropical
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Tiwi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tiwi peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highAug 18UV 14Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr14Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Tiwi in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Tiwi is worst in September — around 21 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (April, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 921 µg/m³Apr 1210 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar12Good
Apr10Good
May14Moderate
Jun19Moderate
Jul20Moderate
Aug21Moderate
Sep21Moderate
Oct16Moderate
Nov12Moderate
Dec12Moderate
Location & terrain

Where is Tiwi?

Tiwi sits at 13.5°N, 123.7°E, 7 m above sea level, in Philippines. The nearest listed city is Tabaco, 13 km away.

Topography around Tiwi

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

Within 3 km, the terrain around Tiwi has only modest variations in elevation — a maximum elevation change of 166 m around an average of 21 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,610 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,411 m.

The land around Tiwi is covered by water (38%) and trees (33%) within 3 km, water (54%) and trees (38%) within 16 km, and water (56%) and trees (36%) within 80 km.

3 km
166 m
16 km
1,610 m
80 km
2,411 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Tabaco 13 km · Malilipot 17 km · Buhi 18 km · San Jose 19 km · Polangui 28 km · Iriga City 29 km · Oas 30 km · Libon 32 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 Tiwi (13.4585°, 123.6805°, elevation 7 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. 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).