Gorontalo weather in September

In September, Gorontalo sees average daytime highs of 28°C and overnight lows near 24°C, with 104 mm of rain across 14.4 wet days and about 12 hours of daylight. It is the 2nd-warmest and 11th-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 18% 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 Gorontalo's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Gorontalo's year-round climate.

Daytime high: 28°; 2nd warmest
Overnight low: 24°; 2nd coldest
Rainfall: 104 mm; 14.4 wet days
Daylight: 12 hours; 5:42 AM – 5:42 PM
Cloud cover: 66%; 2nd clearest
Wind: 13 km/h; 3rd windiest
Solar energy: 6.26 kWh/m²
Travel score: 5.1; out of 10

Gorontalo is city in Gorontalo Province, Indonesia.

Density: 3,170/km²; people per km²
Founded: 1728

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

← August Gorontalo year-round climate October →Best places to visit in September

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

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 Gorontalo reaches about 28°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	29	29	29	29
Avg low (°C)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24

	Avg high (°C)	Avg low (°C)
1	28	24
2	28	24
3	28	24
4	28	24
5	28	24
6	28	24
7	28	24
8	28	24
9	28	24
10	28	24
11	28	24
12	28	24
13	28	24
14	28	24
15	28	24
16	28	24
17	28	24
18	28	24
19	28	24
20	28	24
21	28	24
22	28	24
23	28	24
24	28	24
25	28	24
26	28	24
27	29	24
28	29	24
29	29	24
30	29	24

Gorontalo weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 24°	165	23.5	12	3.9
Feb	28° / 24°	128	19.6	12	4.1
Mar	28° / 24°	182	24.1	12	3.8
Apr	28° / 24°	244	26.5	12	3.4
May	28° / 24°	234	26.3	12	3.6
Jun	28° / 24°	209	22.9	12	4.3
Jul	27° / 24°	151	17.7	12	5.2
Aug	28° / 24°	89	12.3	12	5.9
Sep	28° / 24°	104	14.4	12	5.1
Oct	29° / 24°	167	20.6	12	4.2
Nov	28° / 24°	235	27.8	12	3.3
Dec	28° / 24°	204	28.2	12	3.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 63%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	42	41	41	39	39	39	37	37	37	37	37	36	36	36	36	36	36	37	38	38	38	38	38	38	37	37	37	36	35	34
Cloudier (%)	58	59	59	61	61	61	63	63	63	63	63	64	64	64	64	64	64	63	62	62	62	62	62	62	63	63	63	64	65	66

	Clearer (%)	Cloudier (%)
1	42	58
2	41	59
3	41	59
4	39	61
5	39	61
6	39	61
7	37	63
8	37	63
9	37	63
10	37	63
11	37	63
12	36	64
13	36	64
14	36	64
15	36	64
16	36	64
17	36	64
18	37	63
19	38	62
20	38	62
21	38	62
22	38	62
23	38	62
24	38	62
25	37	63
26	37	63
27	37	63
28	36	64
29	35	65
30	34	66

Chance of precipitation in September

Any precipitation

Gorontalo gets around 104 mm of rain over 14.4 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 49% and peaks near 54% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	48	48	48	48	48	48	48	48	48	48	48	48	48	48	48	48	47	47	47	47	47	48	48	49	50	50	51	52	53	54

	Rain chance (%)
1	48
2	48
3	48
4	48
5	48
6	48
7	48
8	48
9	48
10	48
11	48
12	48
13	48
14	48
15	48
16	48
17	47
18	47
19	47
20	47
21	47
22	48
23	48
24	49
25	50
26	50
27	51
28	52
29	53
30	54

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 70% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Humid (%)	1	1	2	2	2	3	3	3	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	2	2	2	2	2	2
Muggy (%)	30	30	29	29	29	29	29	29	28	28	27	27	27	26	26	26	26	26	26	26	26	26	26	26	25	25	25	24	24	23
Oppressive (%)	69	69	69	69	69	68	68	68	68	68	69	69	69	70	70	70	70	70	70	71	71	71	71	71	73	73	73	74	74	75

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	30	69
2	1	30	69
3	2	29	69
4	2	29	69
5	2	29	69
6	3	29	68
7	3	29	68
8	3	29	68
9	4	28	68
10	4	28	68
11	4	27	69
12	4	27	69
13	4	27	69
14	4	26	70
15	4	26	70
16	4	26	70
17	4	26	70
18	4	26	70
19	4	26	70
20	3	26	71
21	3	26	71
22	3	26	71
23	3	26	71
24	3	26	71
25	2	25	73
26	2	25	73
27	2	25	73
28	2	24	74
29	2	24	74
30	2	23	75

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	11	11	11	11
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	14	light breeze
2	14	light breeze
3	14	light breeze
4	14	light breeze
5	14	light breeze
6	14	light breeze
7	14	light breeze
8	14	light breeze
9	14	light breeze
10	13	light breeze
11	13	light breeze
12	13	light breeze
13	13	light breeze
14	13	light breeze
15	13	light breeze
16	13	light breeze
17	13	light breeze
18	13	light breeze
19	13	light breeze
20	12	light breeze
21	12	light breeze
22	12	light breeze
23	12	calm
24	12	calm
25	12	calm
26	12	calm
27	11	calm
28	11	calm
29	11	calm
30	11	calm

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 5:47 AM to 5:37 AM, and sunset from 5:48 PM to 5:37 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	5:47	5:47	5:47	5:46	5:46	5:46	5:45	5:45	5:44	5:44	5:44	5:43	5:43	5:43	5:42	5:42	5:42	5:41	5:41	5:41	5:40	5:40	5:40	5:39	5:39	5:38	5:38	5:38	5:38	5:37
Sunset (PM)	5:48	5:47	5:47	5:47	5:46	5:46	5:46	5:45	5:45	5:44	5:44	5:44	5:43	5:43	5:43	5:42	5:42	5:41	5:41	5:41	5:40	5:40	5:39	5:39	5:39	5:38	5:38	5:38	5:37	5:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	5:47	5:48
2	12.0	5:47	5:47
3	12.0	5:47	5:47
4	12.0	5:46	5:47
5	12.0	5:46	5:46
6	12.0	5:46	5:46
7	12.0	5:45	5:46
8	12.0	5:45	5:45
9	12.0	5:44	5:45
10	12.0	5:44	5:44
11	12.0	5:44	5:44
12	12.0	5:43	5:44
13	12.0	5:43	5:43
14	12.0	5:43	5:43
15	12.0	5:42	5:43
16	12.0	5:42	5:42
17	12.0	5:42	5:42
18	12.0	5:41	5:41
19	12.0	5:41	5:41
20	12.0	5:41	5:41
21	12.0	5:40	5:40
22	12.0	5:40	5:40
23	12.0	5:40	5:39
24	12.0	5:39	5:39
25	12.0	5:39	5:39
26	12.0	5:38	5:38
27	12.0	5:38	5:38
28	12.0	5:38	5:38
29	12.0	5:38	5:37
30	12.0	5:37	5:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.26 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.94 kWh/m² to a high of 6.26 kWh/m² in September across the year — September's 6.26 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	6.1	6.1	6.1	6.1	6.1	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.1	Intense
2	6.1	Intense
3	6.1	Intense
4	6.1	Intense
5	6.1	Intense
6	6.2	Intense
7	6.2	Intense
8	6.2	Intense
9	6.2	Intense
10	6.2	Intense
11	6.2	Intense
12	6.2	Intense
13	6.2	Intense
14	6.2	Intense
15	6.2	Intense
16	6.3	Intense
17	6.3	Intense
18	6.3	Intense
19	6.3	Intense
20	6.3	Intense
21	6.3	Intense
22	6.3	Intense
23	6.3	Intense
24	6.3	Intense
25	6.3	Intense
26	6.3	Intense
27	6.3	Intense
28	6.3	Intense
29	6.3	Intense
30	6.3	Intense

Planning a trip in September

Is September a good time to visit Gorontalo?

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

5.1

Sightseeing

3rd-best month of the year

6.0

Beach & pool

2nd-best month of the year

September is a reasonable time to visit Gorontalo for sightseeing.

What to pack for Gorontalo in September

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

In September, Gorontalo sees daytime highs around 28°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Gorontalo 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 April at about 30°C and coldest in August near 29°C.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	29	29	30	30	30	29	29	29	29	29	30	30
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	29	Tropical
Feb	29	Tropical
Mar	30	Tropical
Apr	30	Tropical
May	30	Tropical
Jun	29	Tropical
Jul	29	Tropical
Aug	29	Tropical
Sep	29	Tropical
Oct	29	Tropical
Nov	30	Tropical
Dec	30	Tropical

UV index in Gorontalo 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 Gorontalo peaks around February 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 12 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	15	15	15	13	12	12	13	14	14	12	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	15	Extreme
Mar	15	Extreme
Apr	15	Extreme
May	13	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	14	Extreme
Oct	14	Extreme
Nov	12	Extreme
Dec	12	Extreme

Location & terrain

Where is Gorontalo?

Gorontalo sits at 0.5°N, 123.1°E, 11 m above sea level, in Indonesia. The nearest listed city is Luwuk, 168 km away.

Topography around Gorontalo

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

Within 3 km, the terrain around Gorontalo has significant variations in elevation — a maximum elevation change of 391 m around an average of 54 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,262 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,044 m.

The land around Gorontalo is covered by artificial surfaces (40%) and trees (37%) within 3 km, trees (51%) and water (27%) within 16 km, and water (52%) and trees (43%) within 80 km.

3 km

391 m

artificial surfaces 40%

16 km

1,262 m

trees 51%

80 km

2,044 m

water 52%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← August Gorontalo year-round climate October →Best places to visit in September

September weather nearby: Luwuk 168 km · Tomohon 212 km · Tondano 223 km · Manado 225 km · Bitung 251 km · Poso 335 km · Bungku 364 km · Palu 390 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

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 Gorontalo (0.5375°, 123.0625°, elevation 11 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).

	Avg high (°C)	Avg low (°C)
1	28	24
2	28	24
3	28	24
4	28	24
5	28	24
6	28	24
7	28	24
8	28	24
9	28	24
10	28	24
11	28	24
12	28	24
13	28	24
14	28	24
15	28	24
16	28	24
17	28	24
18	28	24
19	28	24
20	28	24
21	28	24
22	28	24
23	28	24
24	28	24
25	28	24
26	28	24
27	29	24
28	29	24
29	29	24
30	29	24

	Clearer (%)	Cloudier (%)
1	42	58
2	41	59
3	41	59
4	39	61
5	39	61
6	39	61
7	37	63
8	37	63
9	37	63
10	37	63
11	37	63
12	36	64
13	36	64
14	36	64
15	36	64
16	36	64
17	36	64
18	37	63
19	38	62
20	38	62
21	38	62
22	38	62
23	38	62
24	38	62
25	37	63
26	37	63
27	37	63
28	36	64
29	35	65
30	34	66

	Rain chance (%)
1	48
2	48
3	48
4	48
5	48
6	48
7	48
8	48
9	48
10	48
11	48
12	48
13	48
14	48
15	48
16	48
17	47
18	47
19	47
20	47
21	47
22	48
23	48
24	49
25	50
26	50
27	51
28	52
29	53
30	54

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	30	69
2	1	30	69
3	2	29	69
4	2	29	69
5	2	29	69
6	3	29	68
7	3	29	68
8	3	29	68
9	4	28	68
10	4	28	68
11	4	27	69
12	4	27	69
13	4	27	69
14	4	26	70
15	4	26	70
16	4	26	70
17	4	26	70
18	4	26	70
19	4	26	70
20	3	26	71
21	3	26	71
22	3	26	71
23	3	26	71
24	3	26	71
25	2	25	73
26	2	25	73
27	2	25	73
28	2	24	74
29	2	24	74
30	2	23	75

	Avg high (°C)	Avg low (°C)
1	28	24
2	28	24
3	28	24
4	28	24
5	28	24
6	28	24
7	28	24
8	28	24
9	28	24
10	28	24
11	28	24
12	28	24
13	28	24
14	28	24
15	28	24
16	28	24
17	28	24
18	28	24
19	28	24
20	28	24
21	28	24
22	28	24
23	28	24
24	28	24
25	28	24
26	28	24
27	29	24
28	29	24
29	29	24
30	29	24

	Clearer (%)	Cloudier (%)
1	42	58
2	41	59
3	41	59
4	39	61
5	39	61
6	39	61
7	37	63
8	37	63
9	37	63
10	37	63
11	37	63
12	36	64
13	36	64
14	36	64
15	36	64
16	36	64
17	36	64
18	37	63
19	38	62
20	38	62
21	38	62
22	38	62
23	38	62
24	38	62
25	37	63
26	37	63
27	37	63
28	36	64
29	35	65
30	34	66

	Rain chance (%)
1	48
2	48
3	48
4	48
5	48
6	48
7	48
8	48
9	48
10	48
11	48
12	48
13	48
14	48
15	48
16	48
17	47
18	47
19	47
20	47
21	47
22	48
23	48
24	49
25	50
26	50
27	51
28	52
29	53
30	54

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	30	69
2	1	30	69
3	2	29	69
4	2	29	69
5	2	29	69
6	3	29	68
7	3	29	68
8	3	29	68
9	4	28	68
10	4	28	68
11	4	27	69
12	4	27	69
13	4	27	69
14	4	26	70
15	4	26	70
16	4	26	70
17	4	26	70
18	4	26	70
19	4	26	70
20	3	26	71
21	3	26	71
22	3	26	71
23	3	26	71
24	3	26	71
25	2	25	73
26	2	25	73
27	2	25	73
28	2	24	74
29	2	24	74
30	2	23	75

	Avg high (°C)	Avg low (°C)
1	28	24
2	28	24
3	28	24
4	28	24
5	28	24
6	28	24
7	28	24
8	28	24
9	28	24
10	28	24
11	28	24
12	28	24
13	28	24
14	28	24
15	28	24
16	28	24
17	28	24
18	28	24
19	28	24
20	28	24
21	28	24
22	28	24
23	28	24
24	28	24
25	28	24
26	28	24
27	29	24
28	29	24
29	29	24
30	29	24

	Clearer (%)	Cloudier (%)
1	42	58
2	41	59
3	41	59
4	39	61
5	39	61
6	39	61
7	37	63
8	37	63
9	37	63
10	37	63
11	37	63
12	36	64
13	36	64
14	36	64
15	36	64
16	36	64
17	36	64
18	37	63
19	38	62
20	38	62
21	38	62
22	38	62
23	38	62
24	38	62
25	37	63
26	37	63
27	37	63
28	36	64
29	35	65
30	34	66

	Rain chance (%)
1	48
2	48
3	48
4	48
5	48
6	48
7	48
8	48
9	48
10	48
11	48
12	48
13	48
14	48
15	48
16	48
17	47
18	47
19	47
20	47
21	47
22	48
23	48
24	49
25	50
26	50
27	51
28	52
29	53
30	54

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	30	69
2	1	30	69
3	2	29	69
4	2	29	69
5	2	29	69
6	3	29	68
7	3	29	68
8	3	29	68
9	4	28	68
10	4	28	68
11	4	27	69
12	4	27	69
13	4	27	69
14	4	26	70
15	4	26	70
16	4	26	70
17	4	26	70
18	4	26	70
19	4	26	70
20	3	26	71
21	3	26	71
22	3	26	71
23	3	26	71
24	3	26	71
25	2	25	73
26	2	25	73
27	2	25	73
28	2	24	74
29	2	24	74
30	2	23	75