Sibulan weather in September

In September, Sibulan sees average daytime highs of 30°C and overnight lows near 25°C, with 247 mm of rain across 26.3 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 3% of the time in September, and the air most often feels miserable.

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

Daytime high: 30°; 5th warmest
Overnight low: 25°; 6th coldest
Rainfall: 247 mm; 26.3 wet days
Daylight: 12 h 06 min; 5:40 AM – 5:43 PM
Cloud cover: 87%; 11th clearest
Wind: 8 km/h; 8th windiest
Solar energy: 5.27 kWh/m²
Travel score: 2.9; out of 10

Sibulan is municipality of the Philippines in the province of Negros Oriental.

Density: 172/km²; people per km²

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

← August Sibulan 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 30°C through the month.

A typical September day in Sibulan reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°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)	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25

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

How September really feels in Sibulan

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.

Sibulan weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 24°	112	17.6	11.5	4.4
Feb	30° / 24°	106	12.7	11.7	4.7
Mar	30° / 24°	89	12.2	11.9	4.5
Apr	32° / 25°	74	12.4	12.2	4.0
May	31° / 25°	161	22.2	12.4	3.0
Jun	30° / 25°	249	26.7	12.5	2.8
Jul	30° / 25°	278	27.7	12.5	2.9
Aug	30° / 25°	240	25.3	12.3	3.1
Sep	30° / 25°	247	26.3	12.1	2.9
Oct	30° / 25°	256	28.1	11.8	2.9
Nov	30° / 25°	176	24.3	11.6	3.2
Dec	29° / 24°	165	22.3	11.5	3.7

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 (%)	12	12	12	12	12	12	11	10	10	10	10	10	10	10	9	9	9	9	10	10	9	9	9	9	9	9	9	9	10	9
Cloudier (%)	88	88	88	88	88	88	89	90	90	90	90	90	90	90	91	91	91	91	90	90	91	91	91	91	91	91	91	91	90	91

	Clearer (%)	Cloudier (%)
1	12	88
2	12	88
3	12	88
4	12	88
5	12	88
6	12	88
7	11	89
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	10	90
20	10	90
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	10	90
30	9	91

Chance of precipitation in September

Any precipitation

Sibulan gets around 247 mm of rain over 26.3 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 87% and peaks near 90% 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 (%)	84	85	86	87	87	88	89	89	89	90	89	89	89	89	88	88	87	87	86	86	86	86	86	86	86	87	87	88	89	89

	Rain chance (%)
1	84
2	85
3	86
4	87
5	87
6	88
7	89
8	89
9	89
10	90
11	89
12	89
13	89
14	89
15	88
16	88
17	87
18	87
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	87
27	87
28	88
29	89
30	89

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 65% 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
Oppressive (%)	33	34	34	34	35	35	36	36	37	37	37	37	37	37	37	37	37	36	36	36	35	35	34	34	34	34	34	34	34	34
Miserable (%)	67	66	66	66	65	65	64	64	63	63	63	63	63	63	63	63	63	64	64	64	65	65	66	66	66	66	66	66	66	66

	Oppressive (%)	Miserable (%)
1	33	67
2	34	66
3	34	66
4	34	66
5	35	65
6	35	65
7	36	64
8	36	64
9	37	63
10	37	63
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	36	64
21	35	65
22	35	65
23	34	66
24	34	66
25	34	66
26	34	66
27	34	66
28	34	66
29	34	66
30	34	66

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 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)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	7	7
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	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	8	calm
13	8	calm
14	8	calm
15	8	calm
16	8	calm
17	8	calm
18	8	calm
19	8	calm
20	8	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	8	calm
29	7	calm
30	7	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 5:41 AM to 5:38 AM, and sunset from 5:52 PM to 5:34 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)	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9
Sunrise (AM)	5:41	5:41	5:41	5:41	5:41	5:41	5:41	5:41	5:40	5:40	5:40	5:40	5:40	5:40	5:40	5:40	5:40	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:38	5:38
Sunset (PM)	5:52	5:51	5:51	5:50	5:50	5:49	5:48	5:48	5:47	5:47	5:46	5:45	5:45	5:44	5:43	5:43	5:42	5:41	5:41	5:40	5:40	5:39	5:38	5:38	5:37	5:36	5:36	5:35	5:35	5:34

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	5:41	5:52
2	12.2	5:41	5:51
3	12.2	5:41	5:51
4	12.2	5:41	5:50
5	12.1	5:41	5:50
6	12.1	5:41	5:49
7	12.1	5:41	5:48
8	12.1	5:41	5:48
9	12.1	5:40	5:47
10	12.1	5:40	5:47
11	12.1	5:40	5:46
12	12.1	5:40	5:45
13	12.1	5:40	5:45
14	12.1	5:40	5:44
15	12.1	5:40	5:43
16	12.1	5:40	5:43
17	12.0	5:40	5:42
18	12.0	5:39	5:41
19	12.0	5:39	5:41
20	12.0	5:39	5:40
21	12.0	5:39	5:40
22	12.0	5:39	5:39
23	12.0	5:39	5:38
24	12.0	5:39	5:38
25	12.0	5:39	5:37
26	12.0	5:39	5:36
27	12.0	5:39	5:36
28	11.9	5:39	5:35
29	11.9	5:38	5:35
30	11.9	5:38	5:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.27 kWh/m².

For context, solar energy here swings from a low near 4.62 kWh/m² to a high of 6.53 kWh/m² in April across the year — September's 5.27 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)	5.5	5.5	5.5	5.5	5.4	5.4	5.4	5.4	5.3	5.3	5.3	5.3	5.3	5.3	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.5	Bright
2	5.5	Bright
3	5.5	Bright
4	5.5	Bright
5	5.4	Bright
6	5.4	Bright
7	5.4	Bright
8	5.4	Bright
9	5.3	Bright
10	5.3	Bright
11	5.3	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.2	Bright
19	5.2	Bright
20	5.2	Bright
21	5.2	Bright
22	5.2	Bright
23	5.2	Bright
24	5.2	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.2	Bright
29	5.2	Bright
30	5.2	Bright

Planning a trip in September

Hazard calendar for Sibulan

In seasonPeak

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

Sibulan 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 Sibulan?

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

2.9

Sightseeing

9th-best month of the year

4.0

Beach & pool

9th-best month of the year

September is a weaker month for outdoor sightseeing in Sibulan.

What to pack for Sibulan in September

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

In September, Sibulan sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Sibulan 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 June at about 29°C and coldest in February near 27°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)	27	27	27	28	29	29	29	29	29	29	29	28
Comfort	Warm	Warm	Warm	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical

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

UV index in Sibulan 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 Sibulan peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (very high).

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)	11	13	15	14	13	12	12	13	13	12	10	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

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

Location & terrain

Where is Sibulan?

Sibulan sits at 9.4°N, 123.3°E, 10 m above sea level, in Philippines. The nearest listed city is Dumaguete, 6.0 km away.

Topography around Sibulan

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

Within 3 km, the terrain around Sibulan has only modest variations in elevation — a maximum elevation change of 105 m around an average of 12 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,704 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,813 m.

The land around Sibulan is covered by water (47%) and trees (39%) within 3 km, trees (48%) and water (48%) within 16 km, and water (64%) and trees (32%) within 80 km.

3 km

105 m

water 47%

16 km

1,704 m

trees 48%

80 km

1,813 m

water 64%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

September weather nearby: Dumaguete 6.0 km · Tanjay 22 km · Bais 31 km · Santa Catalina 46 km · Bayawan 53 km · Tagbilaran 70 km · Dapitan 80 km · Sibonga 82 km

Philippines travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B / C; 230 V · 60 Hz
Prices: ≈ 33% of US; price level, 2025
GDP per capita: $4,171; 2025
Happiness: 6.2 / 10; World Happiness, 2025
Safe drinking water: 48%; of population, 2024
Homicide rate: 4.3; per 100k, 2023
Road deaths: 12; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: High; EF EPI 569
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 Sibulan (9.3584°, 123.285°, elevation 10 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	30	25
2	30	25
3	30	25
4	30	25
5	30	25
6	30	25
7	30	25
8	30	25
9	30	25
10	30	25
11	30	25
12	30	25
13	30	25
14	30	25
15	30	25
16	30	25
17	30	25
18	30	25
19	30	25
20	30	25
21	30	25
22	30	25
23	30	25
24	30	25
25	30	25
26	30	25
27	30	25
28	30	25
29	30	25
30	30	25

	Clearer (%)	Cloudier (%)
1	12	88
2	12	88
3	12	88
4	12	88
5	12	88
6	12	88
7	11	89
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	10	90
20	10	90
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	10	90
30	9	91

	Rain chance (%)
1	84
2	85
3	86
4	87
5	87
6	88
7	89
8	89
9	89
10	90
11	89
12	89
13	89
14	89
15	88
16	88
17	87
18	87
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	87
27	87
28	88
29	89
30	89

	Oppressive (%)	Miserable (%)
1	33	67
2	34	66
3	34	66
4	34	66
5	35	65
6	35	65
7	36	64
8	36	64
9	37	63
10	37	63
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	36	64
21	35	65
22	35	65
23	34	66
24	34	66
25	34	66
26	34	66
27	34	66
28	34	66
29	34	66
30	34	66

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

	Clearer (%)	Cloudier (%)
1	12	88
2	12	88
3	12	88
4	12	88
5	12	88
6	12	88
7	11	89
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	10	90
20	10	90
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	10	90
30	9	91

	Rain chance (%)
1	84
2	85
3	86
4	87
5	87
6	88
7	89
8	89
9	89
10	90
11	89
12	89
13	89
14	89
15	88
16	88
17	87
18	87
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	87
27	87
28	88
29	89
30	89

	Oppressive (%)	Miserable (%)
1	33	67
2	34	66
3	34	66
4	34	66
5	35	65
6	35	65
7	36	64
8	36	64
9	37	63
10	37	63
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	36	64
21	35	65
22	35	65
23	34	66
24	34	66
25	34	66
26	34	66
27	34	66
28	34	66
29	34	66
30	34	66

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

	Clearer (%)	Cloudier (%)
1	12	88
2	12	88
3	12	88
4	12	88
5	12	88
6	12	88
7	11	89
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	10	90
20	10	90
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	10	90
30	9	91

	Rain chance (%)
1	84
2	85
3	86
4	87
5	87
6	88
7	89
8	89
9	89
10	90
11	89
12	89
13	89
14	89
15	88
16	88
17	87
18	87
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	87
27	87
28	88
29	89
30	89

	Oppressive (%)	Miserable (%)
1	33	67
2	34	66
3	34	66
4	34	66
5	35	65
6	35	65
7	36	64
8	36	64
9	37	63
10	37	63
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	36	64
21	35	65
22	35	65
23	34	66
24	34	66
25	34	66
26	34	66
27	34	66
28	34	66
29	34	66
30	34	66