Negara weather in September

In September, Negara sees average daytime highs of 26°C and overnight lows near 24°C, with 14 mm of rain across 3.1 wet days and about 12 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Negara's 2nd-clearest and 1st-windiest month. For the whole year in context, see Negara's year-round climate.

Daytime high
26°
10th warmest
Overnight low
24°
3rd coldest
Rainfall
14 mm
3.1 wet days
Daylight
12 hours
6:17 AM – 6:14 PM
Cloud cover
44%
2nd clearest
Wind
17 km/h
1st windiest
Solar energy
6.65 kWh/m²
Travel score
8.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Negara reaches about 26°C in the afternoon and slips back to 24°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52623
62623
72623
82623
92623
102623
112623
122623
132623
142623
152623
162623
172624
182624
192624
202624
212624
222624
232624
242624
252624
262624
272624
282624
292624
302624

Negara weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°27027.112.43.7
Feb27° / 25°25625.612.33.6
Mar28° / 25°19624.312.14.2
Apr28° / 25°1162111.84.7
May27° / 25°531111.66.5
Jun27° / 24°286.811.57.2
Jul26° / 24°174.411.67.8
Aug26° / 23°62.411.78.3
Sep26° / 24°143.1128.0
Oct27° / 24°398.512.26.9
Nov27° / 25°12618.912.45.0
Dec28° / 25°21925.212.54.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27426
37426
47426
57426
67426
77426
87327
97327
107327
117327
127327
137327
147129
157129
167129
177129
187030
196931
206931
216832
226832
236733
246634
256634
266535
276436
286337
296337
306337

Chance of precipitation in September

Any precipitation

Negara gets around 14 mm of rain over 3.1 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 11% and peaks near 17% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
18
28
38
48
58
68
77
87
97
107
118
128
138
149
159
1610
1711
1811
1912
2012
2113
2213
2314
2415
2515
2616
2716
2817
2917
3017

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
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1123760
2122770
3121780
4120790
5120790
6119800
7119800
8119800
9118810
10118810
11118810
12117820
13117820
14117820
15017830
16016840
17016831
18016831
19016831
20015841
21015841
22014851
23014851
24013861
25013852
26012862
27012862
28012862
29011872
30010873

Wind in September

Winds average 17 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
417light breeze
517light 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
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:26 AM to 6:09 AM, and sunset from 6:16 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:266:16
211.86:266:16
311.96:256:16
411.96:246:16
511.96:246:16
611.96:236:16
711.96:236:16
811.96:226:16
911.96:216:15
1011.96:216:15
1111.96:206:15
1211.96:206:15
1311.96:196:15
1411.96:186:15
1511.96:186:15
1612.06:176:14
1712.06:176:14
1812.06:166:14
1912.06:156:14
2012.06:156:14
2112.06:146:14
2212.06:146:14
2312.06:136:14
2412.06:126:13
2512.06:126:13
2612.06:116:13
2712.06:116:13
2812.06:106:13
2912.16:096:13
3012.16:096:13

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.65 kWh/m².

For context, solar energy here swings from a low near 5.16 kWh/m² to a high of 6.86 kWh/m² in October across the year — September's 6.65 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
Planning a trip in September

Hazard calendar for Negara

In seasonPeak

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

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

Negara's monsoon runs November–March, when most of the year's rain falls.

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

Is September a good time to visit Negara?

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

8.0
Sightseeing
2nd-best month of the year
7.6
Beach & pool
2nd-best month of the year

September is one of the better times to visit Negara for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Negara in September

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

In September, Negara sees daytime highs around 26°C and nights near 24°C. Pack sun protection. Worth having: light clothes. About 3 days see rain.

sun protectionlight clothes

Sea temperature near Negara in September

The nearest coast averages about 27°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 April at about 29°C and coldest in August near 27°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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct28Warm
Nov29Tropical
Dec29Tropical

UV index in Negara 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 Negara peaks around March 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 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 highExtremeMar 17UV 14Jun 19UV 9
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec12Extreme

Air quality in Negara 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 Negara is worst in January — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1920 µg/m³Sep 1614 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb18Moderate
Mar19Moderate
Apr16Moderate
May16Moderate
Jun16Moderate
Jul14Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov15Moderate
Dec16Moderate
Location & terrain

Where is Negara?

Negara sits at 8.4°S, 114.6°E, 12 m above sea level, in Indonesia. The nearest listed city is Banyuwangi, 32 km away.

Topography around Negara

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

Within 3 km, the terrain around Negara has only modest variations in elevation — a maximum elevation change of 72 m around an average of 16 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,377 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,219 m.

The land around Negara is covered by trees (52%) and cropland (24%) within 3 km, trees (49%) and water (43%) within 16 km, and water (54%) and trees (37%) within 80 km.

3 km
72 m
16 km
1,377 m
80 km
3,219 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Banyuwangi 32 km · Muncar 32 km · Srono 39 km · Seririt 40 km · Singojuruh 42 km · Banjar 43 km · Wongsorejo 47 km · Sukawati 49 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 Negara (-8.3569°, 114.6169°, elevation 12 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).