Tahuna weather in September

In September, Tahuna sees average daytime highs of 28°C and overnight lows near 26°C, with 123 mm of rain across 16.2 wet days and about 12 hours of daylight. It is the 5th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 23% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Tahuna's 3rd-clearest and 7th-windiest month. For the whole year in context, see Tahuna's year-round climate.

Daytime high
28°
5th warmest
Overnight low
26°
12th coldest
Rainfall
123 mm
16.2 wet days
Daylight
12 hours
5:32 AM – 5:33 PM
Cloud cover
65%
3rd clearest
Wind
17 km/h
7th windiest
Solar energy
6.09 kWh/m²
Travel score
5.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Tahuna reaches about 28°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826

How September really feels in Tahuna

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tahuna weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°28425.411.84.1
Feb27° / 26°19319.911.94.6
Mar27° / 26°17820.4124.9
Apr28° / 26°16619.812.14.8
May28° / 26°21424.912.24.2
Jun28° / 26°26124.212.24.1
Jul27° / 26°2222212.24.6
Aug27° / 26°15416.912.15.4
Sep28° / 26°12316.2125.3
Oct28° / 26°17821.111.94.7
Nov28° / 26°24326.111.83.9
Dec27° / 26°26927.511.83.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34357
44258
54258
64159
74258
84159
94060
104060
113961
123961
133862
143763
153763
163664
173664
183763
193763
203763
213862
223862
233862
243961
254159
264159
274159
284258
294258
304159

Chance of precipitation in September

Any precipitation

Tahuna gets around 123 mm of rain over 16.2 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 58% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
155
255
355
455
555
655
755
855
955
1055
1155
1255
1355
1455
1555
1655
1755
1855
1955
2054
2154
2254
2354
2455
2555
2656
2756
2857
2957
3058

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
108515
208515
308614
408614
508614
608614
708713
808614
908614
1008614
1108614
1208614
1308515
1408515
1518316
1618217
1718118
1808119
1908020
2007921
2107921
2207822
2307822
2407723
2507723
2607723
2707723
2807723
2907723
3007723

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 5:36 AM to 5:28 AM, and sunset from 5:40 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:365:40
212.15:355:39
312.15:355:39
412.15:355:39
512.15:355:38
612.15:345:38
712.05:345:37
812.05:345:37
912.05:345:36
1012.05:335:36
1112.05:335:35
1212.05:335:35
1312.05:335:34
1412.05:325:34
1512.05:325:33
1612.05:325:33
1712.05:325:32
1812.05:315:32
1912.05:315:32
2012.05:315:31
2112.05:305:31
2212.05:305:30
2312.05:305:30
2412.05:305:29
2512.05:295:29
2612.05:295:28
2712.05:295:28
2812.05:295:27
2912.05:285:27
3012.05:285:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.09 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.98 kWh/m² to a high of 6.09 kWh/m² in September across the year — September's 6.09 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.0Intense
Planning a trip in September

Hazard calendar for Tahuna

In seasonPeak

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

Tahuna 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 Tahuna?

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

5.3
Sightseeing
2nd-best month of the year
5.6
Beach & pool
1st-best month of the year

September is a reasonable time to visit Tahuna for sightseeing.

What to pack for Tahuna in September

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

In September, Tahuna sees daytime highs around 28°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Tahuna 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 offshore is warmest in May at about 29°C and coldest in February near 28°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
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tahuna 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 Tahuna peaks around March 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 15Dec 16UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is Tahuna?

Tahuna sits at 3.6°N, 125.5°E, 77 m above sea level, in Indonesia. The nearest listed city is Bitung, 245 km away.

Topography around Tahuna

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

Within 3 km, the terrain around Tahuna has significant variations in elevation — a maximum elevation change of 547 m around an average of 100 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,337 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,311 m.

The land around Tahuna is covered by trees (61%) and water (30%) within 3 km, water (56%) and trees (42%) within 16 km, and water (96%) within 80 km.

3 km
547 m
16 km
1,337 m
80 km
1,311 m
treesgrasslandartificial surfaceswater
September weather nearby: Bitung 245 km · Manado 247 km · Glan 248 km · Malapatan 263 km · Tondano 264 km · Tomohon 266 km · Alabel 278 km · General Santos 280 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%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 Tahuna (3.611°, 125.4858°, elevation 77 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).