Agats weather in September

In September, Agats sees average daytime highs of 29°C and overnight lows near 24°C, with 233 mm of rain across 21.6 wet days and about 12 hours of daylight. It is the 9th-warmest and 10th-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 3% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Agats's 2nd-clearest and 8th-windiest month. For the whole year in context, see Agats's year-round climate.

Daytime high: 29°; 9th warmest
Overnight low: 24°; 3rd coldest
Rainfall: 233 mm; 21.6 wet days
Daylight: 12 hours; 5:43 AM – 5:41 PM
Cloud cover: 84%; 2nd clearest
Wind: 6 km/h; 8th windiest
Solar energy: 4.04 kWh/m²
Travel score: 3.6; out of 10

← August Agats 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 29°C through the month.

A typical September day in Agats reaches about 29°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 31°C. Set against its neighbours, September runs on par with August and about 1°C cooler than 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)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	30	30	30	30	30	30	30	30	30	30	30	30	30
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	29	24
2	29	24
3	29	24
4	29	24
5	29	24
6	29	24
7	29	24
8	29	24
9	29	24
10	29	24
11	29	24
12	29	24
13	29	24
14	29	24
15	29	24
16	29	24
17	29	24
18	30	24
19	30	24
20	30	24
21	30	24
22	30	24
23	30	24
24	30	24
25	30	24
26	30	24
27	30	24
28	30	24
29	30	24
30	30	24

How September really feels in Agats

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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Agats weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 25°	268	26.4	12.3	2.7
Feb	31° / 25°	284	24.9	12.2	2.6
Mar	31° / 25°	342	27.8	12	2.6
Apr	30° / 25°	331	27.7	11.9	2.6
May	30° / 25°	264	25.3	11.8	3.0
Jun	29° / 24°	236	22.2	11.7	3.6
Jul	29° / 24°	176	19.6	11.7	4.1
Aug	29° / 24°	179	17.7	11.8	4.3
Sep	29° / 24°	233	21.6	12	3.6
Oct	30° / 24°	266	24.6	12.1	3.1
Nov	31° / 25°	240	26.7	12.3	2.6
Dec	31° / 25°	289	28.1	12.3	2.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% 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 90%.

	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 (%)	9	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	11	11	11
Cloudier (%)	91	90	90	90	90	90	90	90	90	90	91	91	91	91	91	91	91	91	91	91	91	90	90	90	90	90	90	89	89	89

	Clearer (%)	Cloudier (%)
1	9	91
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	9	91
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	10	90
23	10	90
24	10	90
25	10	90
26	10	90
27	10	90
28	11	89
29	11	89
30	11	89

Chance of precipitation in September

Any precipitation

Agats gets around 233 mm of rain over 21.6 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 71% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

	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 (%)	66	67	67	68	68	68	69	69	69	69	69	69	69	69	70	70	70	71	72	72	73	74	74	75	75	76	76	77	77	77

	Rain chance (%)
1	66
2	67
3	67
4	68
5	68
6	68
7	69
8	69
9	69
10	69
11	69
12	69
13	69
14	69
15	70
16	70
17	70
18	71
19	72
20	72
21	73
22	74
23	74
24	75
25	75
26	76
27	76
28	77
29	77
30	77

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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
Muggy (%)	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	4	4	4	3	3	3	2	2	2	2	1	1	1	1	1
Oppressive (%)	62	61	60	59	58	57	55	55	54	54	53	53	52	51	51	51	50	49	49	48	48	47	47	46	46	45	44	44	43	42
Miserable (%)	34	35	36	37	38	39	40	40	41	41	42	42	43	44	44	45	46	47	48	48	49	51	51	52	52	54	55	55	56	57

	Muggy (%)	Oppressive (%)	Miserable (%)
1	4	62	34
2	4	61	35
3	4	60	36
4	4	59	37
5	4	58	38
6	4	57	39
7	5	55	40
8	5	55	40
9	5	54	41
10	5	54	41
11	5	53	42
12	5	53	42
13	5	52	43
14	5	51	44
15	5	51	44
16	4	51	45
17	4	50	46
18	4	49	47
19	3	49	48
20	3	48	48
21	3	48	49
22	2	47	51
23	2	47	51
24	2	46	52
25	2	46	52
26	1	45	54
27	1	44	55
28	1	44	55
29	1	43	56
30	1	42	57

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 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)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min 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 6 minutes over September. Sunrise moves from 5:50 AM to 5:35 AM, and sunset from 5:44 PM to 5:38 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)	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	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)	5:50	5:50	5:49	5:49	5:48	5:48	5:47	5:47	5:46	5:46	5:45	5:45	5:44	5:44	5:43	5:43	5:42	5:42	5:41	5:41	5:40	5:40	5:39	5:38	5:38	5:37	5:37	5:36	5:36	5:35
Sunset (PM)	5:44	5:44	5:44	5:43	5:43	5:43	5:43	5:43	5:42	5:42	5:42	5:42	5:42	5:41	5:41	5:41	5:41	5:40	5:40	5:40	5:40	5:40	5:39	5:39	5:39	5:39	5:39	5:38	5:38	5:38

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	5:50	5:44
2	11.9	5:50	5:44
3	11.9	5:49	5:44
4	11.9	5:49	5:43
5	11.9	5:48	5:43
6	11.9	5:48	5:43
7	11.9	5:47	5:43
8	11.9	5:47	5:43
9	11.9	5:46	5:42
10	11.9	5:46	5:42
11	11.9	5:45	5:42
12	11.9	5:45	5:42
13	12.0	5:44	5:42
14	12.0	5:44	5:41
15	12.0	5:43	5:41
16	12.0	5:43	5:41
17	12.0	5:42	5:41
18	12.0	5:42	5:40
19	12.0	5:41	5:40
20	12.0	5:41	5:40
21	12.0	5:40	5:40
22	12.0	5:40	5:40
23	12.0	5:39	5:39
24	12.0	5:38	5:39
25	12.0	5:38	5:39
26	12.0	5:37	5:39
27	12.0	5:37	5:39
28	12.0	5:36	5:38
29	12.0	5:36	5:38
30	12.0	5:35	5:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.04 kWh/m².

For context, solar energy here swings from a low near 3.05 kWh/m² to a high of 4.93 kWh/m² in January across the year — September's 4.04 kWh/m² falls in the middle.

	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)	3.8	3.8	3.8	3.8	3.9	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.1	4.1	4.2	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.3
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.8	Moderate
2	3.8	Moderate
3	3.8	Moderate
4	3.8	Moderate
5	3.9	Moderate
6	3.9	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	4.0	Moderate
11	4.0	Moderate
12	4.0	Moderate
13	4.0	Bright
14	4.0	Bright
15	4.0	Bright
16	4.0	Bright
17	4.1	Bright
18	4.1	Bright
19	4.1	Bright
20	4.1	Bright
21	4.1	Bright
22	4.2	Bright
23	4.2	Bright
24	4.2	Bright
25	4.2	Bright
26	4.3	Bright
27	4.3	Bright
28	4.3	Bright
29	4.3	Bright
30	4.3	Bright

Planning a trip in September

Hazard calendar for Agats

In seasonPeak

None of Agats's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Agats sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Cyclone

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Agats?

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

3.6

Sightseeing

3rd-best month of the year

4.8

Beach & pool

3rd-best month of the year

September is a weaker month for outdoor sightseeing in Agats.

What to pack for Agats in September

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

In September, Agats sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. About 22 days see rain.

light clothesrain gear

Sea temperature near Agats in September

The nearest coast averages about 26°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 30 km away) is warmest in March at about 30°C and coldest in August near 26°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	30	30	30	29	27	26	26	26	28	29	29
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Warm	Warm	Warm	Warm	Warm	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	29	Tropical
Feb	30	Tropical
Mar	30	Tropical
Apr	30	Tropical
May	29	Tropical
Jun	27	Warm
Jul	26	Warm
Aug	26	Warm
Sep	26	Warm
Oct	28	Warm
Nov	29	Tropical
Dec	29	Tropical

UV index in Agats 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 Agats peaks around March 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (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)	15	16	16	15	12	10	11	13	14	14	13	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	16	Extreme
Mar	16	Extreme
Apr	15	Extreme
May	12	Extreme
Jun	10	Very high
Jul	11	Extreme
Aug	13	Extreme
Sep	14	Extreme
Oct	14	Extreme
Nov	13	Extreme
Dec	13	Extreme

Location & terrain

Where is Agats?

Agats sits at 5.5°S, 138.1°E, 4 m above sea level, in Indonesia. The nearest listed city is Tiom, 184 km away.

Topography around Agats

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

Within 3 km, the terrain around Agats has only modest variations in elevation — a maximum elevation change of 27 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, only modest variations in elevation — a maximum elevation change of 40 m.

The land around Agats is covered by trees (44%) and mangroves (36%) within 3 km, trees (49%), mangroves (30%) and water (21%) within 16 km, and trees (56%) and water (31%) within 80 km.

3 km

27 m

trees 44%

16 km

38 m

trees 49%

80 km

40 m

trees 56%

treesgrasslandartificial surfaceswatermangroves

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

September weather nearby: Tiom 184 km · Wamena 185 km · Timika 192 km · Mulia 204 km · Nabire 380 km · Merauke 413 km · Sentani 423 km · Abepura 429 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 Agats (-5.545°, 138.1352°, elevation 4 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).

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

	Clearer (%)	Cloudier (%)
1	9	91
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	9	91
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	10	90
23	10	90
24	10	90
25	10	90
26	10	90
27	10	90
28	11	89
29	11	89
30	11	89

	Rain chance (%)
1	66
2	67
3	67
4	68
5	68
6	68
7	69
8	69
9	69
10	69
11	69
12	69
13	69
14	69
15	70
16	70
17	70
18	71
19	72
20	72
21	73
22	74
23	74
24	75
25	75
26	76
27	76
28	77
29	77
30	77

	Muggy (%)	Oppressive (%)	Miserable (%)
1	4	62	34
2	4	61	35
3	4	60	36
4	4	59	37
5	4	58	38
6	4	57	39
7	5	55	40
8	5	55	40
9	5	54	41
10	5	54	41
11	5	53	42
12	5	53	42
13	5	52	43
14	5	51	44
15	5	51	44
16	4	51	45
17	4	50	46
18	4	49	47
19	3	49	48
20	3	48	48
21	3	48	49
22	2	47	51
23	2	47	51
24	2	46	52
25	2	46	52
26	1	45	54
27	1	44	55
28	1	44	55
29	1	43	56
30	1	42	57

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

	Clearer (%)	Cloudier (%)
1	9	91
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	9	91
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	10	90
23	10	90
24	10	90
25	10	90
26	10	90
27	10	90
28	11	89
29	11	89
30	11	89

	Rain chance (%)
1	66
2	67
3	67
4	68
5	68
6	68
7	69
8	69
9	69
10	69
11	69
12	69
13	69
14	69
15	70
16	70
17	70
18	71
19	72
20	72
21	73
22	74
23	74
24	75
25	75
26	76
27	76
28	77
29	77
30	77

	Muggy (%)	Oppressive (%)	Miserable (%)
1	4	62	34
2	4	61	35
3	4	60	36
4	4	59	37
5	4	58	38
6	4	57	39
7	5	55	40
8	5	55	40
9	5	54	41
10	5	54	41
11	5	53	42
12	5	53	42
13	5	52	43
14	5	51	44
15	5	51	44
16	4	51	45
17	4	50	46
18	4	49	47
19	3	49	48
20	3	48	48
21	3	48	49
22	2	47	51
23	2	47	51
24	2	46	52
25	2	46	52
26	1	45	54
27	1	44	55
28	1	44	55
29	1	43	56
30	1	42	57

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

	Clearer (%)	Cloudier (%)
1	9	91
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	9	91
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	10	90
23	10	90
24	10	90
25	10	90
26	10	90
27	10	90
28	11	89
29	11	89
30	11	89

	Rain chance (%)
1	66
2	67
3	67
4	68
5	68
6	68
7	69
8	69
9	69
10	69
11	69
12	69
13	69
14	69
15	70
16	70
17	70
18	71
19	72
20	72
21	73
22	74
23	74
24	75
25	75
26	76
27	76
28	77
29	77
30	77

	Muggy (%)	Oppressive (%)	Miserable (%)
1	4	62	34
2	4	61	35
3	4	60	36
4	4	59	37
5	4	58	38
6	4	57	39
7	5	55	40
8	5	55	40
9	5	54	41
10	5	54	41
11	5	53	42
12	5	53	42
13	5	52	43
14	5	51	44
15	5	51	44
16	4	51	45
17	4	50	46
18	4	49	47
19	3	49	48
20	3	48	48
21	3	48	49
22	2	47	51
23	2	47	51
24	2	46	52
25	2	46	52
26	1	45	54
27	1	44	55
28	1	44	55
29	1	43	56
30	1	42	57