Manokwari weather in September

In September, Manokwari sees average daytime highs of 27°C and overnight lows near 25°C, with 147 mm of rain across 23 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 27°C through the month. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Manokwari's 1st-clearest and 10th-windiest month. For the whole year in context, see Manokwari's year-round climate.

Daytime high
27°
5th warmest
Overnight low
25°
6th coldest
Rainfall
147 mm
23 wet days
Daylight
12 hours
5:58 AM – 5:58 PM
Cloud cover
66%
1st clearest
Wind
8 km/h
10th windiest
Solar energy
5.57 kWh/m²
Travel score
4.4
out of 10

Manokwari is capital of West Papua Province, Indonesia.

Density
7,075/km²
people per km²

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 27°C through the month.

A typical September day in Manokwari reaches about 27°C in the afternoon and slips back to 25°C overnight — a 2°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.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12725
22725
32725
42725
52725
62725
72725
82725
92725
102725
112725
122725
132725
142725
152725
162725
172725
182725
192726
202726
212726
222726
232726
242826
252826
262826
272826
282826
292826
302826

Manokwari 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° / 25°30426.9123.8
Feb27° / 25°26424.6123.8
Mar27° / 25°31228123.7
Apr27° / 26°36727.1123.6
May28° / 26°22026.2124.0
Jun27° / 26°20825.8124.0
Jul27° / 25°18424.2124.3
Aug27° / 25°16323.1124.5
Sep27° / 25°14723124.4
Oct28° / 26°16924124.3
Nov28° / 26°25325.6123.9
Dec27° / 26°32128.8123.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24159
34159
43961
53961
63961
73862
83961
93862
103862
113961
124060
134060
144060
154060
164159
174159
184159
194159
204159
214258
224357
234357
244357
254258
264258
274258
284159
294159
304159

Chance of precipitation in September

Any precipitation

Manokwari gets around 147 mm of rain over 23 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 77% and peaks near 78% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
177
278
378
478
578
678
778
878
978
1078
1178
1277
1377
1477
1577
1677
1777
1876
1976
2076
2176
2276
2375
2475
2575
2675
2775
2874
2974
3075

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 100% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 8 km/h in September.

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

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

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

Days grow by about 0 minutes over September. Sunrise moves from 6:04 AM to 5:53 AM, and sunset from 6:03 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:046:03
212.06:046:03
312.06:036:02
412.06:036:02
512.06:026:02
612.06:026:01
712.06:026:01
812.06:016:01
912.06:016:00
1012.06:016:00
1112.06:006:00
1212.06:005:59
1312.05:595:59
1412.05:595:59
1512.05:595:58
1612.05:585:58
1712.05:585:58
1812.05:575:57
1912.05:575:57
2012.05:575:57
2112.05:565:56
2212.05:565:56
2312.05:555:56
2412.05:555:55
2512.05:555:55
2612.05:545:55
2712.05:545:54
2812.05:545:54
2912.05:535:54
3012.05:535:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.57 kWh/m².

For context, solar energy here swings from a low near 4.73 kWh/m² to a high of 5.69 kWh/m² in October across the year — September's 5.57 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Is September a good time to visit Manokwari?

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

4.4
Sightseeing
2nd-best month of the year
4.6
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Manokwari for sightseeing.

What to pack for Manokwari in September

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

In September, Manokwari sees daytime highs around 27°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Manokwari 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 October at about 30°C and coldest in February near 29°C.

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

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct30Tropical
Nov30Tropical
Dec30Tropical

UV index in Manokwari in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Manokwari peaks around March 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 16Jul 12UV 11
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr16Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Manokwari?

Manokwari sits at 0.9°S, 134.1°E, 15 m above sea level, in Indonesia. The nearest listed city is Ransiki, 73 km away.

FakfakSorongNabireWaisai

Topography around Manokwari

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

Within 3 km, the terrain around Manokwari has only modest variations in elevation — a maximum elevation change of 209 m around an average of 59 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 418 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,912 m.

The land around Manokwari is covered by trees (50%), water (25%) and artificial surfaces (21%) within 3 km, water (59%) and trees (39%) within 16 km, and water (55%) and trees (44%) within 80 km.

3 km
209 m
16 km
418 m
80 km
2,912 m
treesgrasslandartificial surfaceswater
September weather nearby: Ransiki 73 km · Bintuni 151 km · Biak 227 km · Teminabuan 237 km · Fakfak 302 km · Sorong 312 km · Nabire 320 km · Waisai 402 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 Manokwari (-0.8629°, 134.064°, elevation 15 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).