Sipalay weather in September

In September, Sipalay sees average daytime highs of 28°C and overnight lows near 24°C, with 397 mm of rain across 28.5 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 2nd-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 2% 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 Sipalay's 11th-clearest and 8th-windiest month. For the whole year in context, see Sipalay's year-round climate.

Daytime high: 28°; 10th warmest
Overnight low: 24°; 7th coldest
Rainfall: 397 mm; 28.5 wet days
Daylight: 12 h 06 min; 5:43 AM – 5:46 PM
Cloud cover: 89%; 11th clearest
Wind: 11 km/h; 8th windiest
Solar energy: 5.03 kWh/m²
Travel score: 3.1; out of 10

Sipalay is city of the Philippines in the province of Negros Occidental.

Density: 194/km²; people per km²
Founded: 1948

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

← August Sipalay 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 Sipalay reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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)	29	29	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
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	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	28	24
28	29	24
29	29	24
30	29	24

How September really feels in Sipalay

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.

Sipalay weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 24°	85	12.5	11.5	4.9
Feb	30° / 24°	81	10.2	11.7	4.9
Mar	31° / 24°	88	11.4	11.9	4.5
Apr	31° / 25°	115	15	12.2	3.8
May	30° / 25°	270	26.4	12.4	3.0
Jun	29° / 25°	389	28.4	12.6	2.9
Jul	28° / 24°	433	29.2	12.5	3.1
Aug	28° / 24°	386	27.8	12.3	3.3
Sep	28° / 24°	397	28.5	12.1	3.1
Oct	29° / 24°	330	28.8	11.8	3.1
Nov	30° / 24°	186	21	11.6	3.7
Dec	29° / 24°	154	18.1	11.4	4.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 92%.

	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	9	9	9	9	9	8	8	8	7	7	7	7	7	6	7	7	7	8	8	8	8	8	8	8	8	8	8	8	8
Cloudier (%)	91	91	91	91	91	91	92	92	92	93	93	93	93	93	94	93	93	93	92	92	92	92	92	92	92	92	92	92	92	92

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	9	91
4	9	91
5	9	91
6	9	91
7	8	92
8	8	92
9	8	92
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	6	94
16	7	93
17	7	93
18	7	93
19	8	92
20	8	92
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	8	92
28	8	92
29	8	92
30	8	92

Chance of precipitation in September

Any precipitation

Sipalay gets around 397 mm of rain over 28.5 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 95% and peaks near 96% 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 (%)	93	93	94	94	94	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	96	96	96	96

	Rain chance (%)
1	93
2	93
3	94
4	94
5	94
6	95
7	95
8	95
9	95
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	95
20	95
21	95
22	95
23	95
24	95
25	95
26	95
27	96
28	96
29	96
30	96

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 56% 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 (%)	41	42	42	43	43	44	44	45	45	46	46	46	46	46	46	46	45	45	44	44	43	43	43	43	44	44	45	45	45	46
Miserable (%)	59	58	58	57	57	56	56	55	55	54	54	54	54	54	54	54	55	55	56	56	57	57	57	57	56	56	55	55	55	54

	Oppressive (%)	Miserable (%)
1	41	59
2	42	58
3	42	58
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	46	54
15	46	54
16	46	54
17	45	55
18	45	55
19	44	56
20	44	56
21	43	57
22	43	57
23	43	57
24	43	57
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	46	54

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 12 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)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	11	11	11	11	11	11	11	11	11	11	11	10	10
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	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	11	calm
8	11	calm
9	11	calm
10	11	calm
11	11	calm
12	11	calm
13	11	calm
14	11	calm
15	12	calm
16	12	calm
17	12	calm
18	11	calm
19	11	calm
20	11	calm
21	11	calm
22	11	calm
23	11	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	10	calm
30	10	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 5:44 AM to 5:42 AM, and sunset from 5:56 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)	12.2	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	12.0	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)	5:44	5:44	5:44	5:44	5:44	5:44	5:44	5:44	5:44	5:44	5:44	5:43	5:43	5:43	5:43	5:43	5:43	5:43	5:43	5:43	5:43	5:43	5:42	5:42	5:42	5:42	5:42	5:42	5:42	5:42
Sunset (PM)	5:56	5:55	5:55	5:54	5:53	5:53	5:52	5:51	5:51	5:50	5:50	5:49	5:48	5:48	5:47	5:46	5:46	5:45	5:44	5:44	5:43	5:42	5:42	5:41	5:41	5:40	5:39	5:39	5:38	5:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	5:44	5:56
2	12.2	5:44	5:55
3	12.2	5:44	5:55
4	12.2	5:44	5:54
5	12.2	5:44	5:53
6	12.1	5:44	5:53
7	12.1	5:44	5:52
8	12.1	5:44	5:51
9	12.1	5:44	5:51
10	12.1	5:44	5:50
11	12.1	5:44	5:50
12	12.1	5:43	5:49
13	12.1	5:43	5:48
14	12.1	5:43	5:48
15	12.1	5:43	5:47
16	12.1	5:43	5:46
17	12.0	5:43	5:46
18	12.0	5:43	5:45
19	12.0	5:43	5:44
20	12.0	5:43	5:44
21	12.0	5:43	5:43
22	12.0	5:43	5:42
23	12.0	5:42	5:42
24	12.0	5:42	5:41
25	12.0	5:42	5:41
26	12.0	5:42	5:40
27	12.0	5:42	5:39
28	11.9	5:42	5:39
29	11.9	5:42	5:38
30	11.9	5:42	5:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.03 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 6.65 kWh/m² in April across the year — September's 5.03 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)	5.3	5.3	5.2	5.2	5.2	5.2	5.1	5.1	5.1	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0
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	5.3	Bright
2	5.3	Bright
3	5.2	Bright
4	5.2	Bright
5	5.2	Bright
6	5.2	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.0	Bright
11	5.0	Bright
12	5.0	Bright
13	5.0	Bright
14	5.0	Bright
15	5.0	Bright
16	5.0	Bright
17	5.0	Bright
18	5.0	Bright
19	5.0	Bright
20	5.0	Bright
21	5.0	Bright
22	5.0	Bright
23	5.0	Bright
24	5.0	Bright
25	5.0	Bright
26	5.0	Bright
27	5.0	Bright
28	5.0	Bright
29	5.0	Bright
30	5.0	Bright

Planning a trip in September

Hazard calendar for Sipalay

In seasonPeak

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

Sipalay sits in the Pacific typhoon belt; the season peaks July–October.

Sipalay's rainy season runs May–October, when most of the year's rain falls.

Pacific typhoon

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Sipalay?

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

3.1

Sightseeing

8th-best month of the year

3.7

Beach & pool

12th-best month of the year

September is a weaker month for outdoor sightseeing in Sipalay.

What to pack for Sipalay in September

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

In September, Sipalay sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Sipalay 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 14 km away) is warmest in May at about 30°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	28	29	30	30	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	28	Warm
Apr	29	Tropical
May	30	Tropical
Jun	30	Tropical
Jul	29	Tropical
Aug	29	Tropical
Sep	29	Tropical
Oct	29	Tropical
Nov	29	Tropical
Dec	28	Tropical

UV index in Sipalay 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 Sipalay peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 9 (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	14	14	12	12	12	13	13	11	9	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	13	Extreme
Mar	14	Extreme
Apr	14	Extreme
May	12	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	11	Extreme
Nov	9	Very high
Dec	10	Very high

Location & terrain

Where is Sipalay?

Sipalay sits at 9.8°N, 122.4°E, 10 m above sea level, in Philippines. The nearest listed city is Asia, 26 km away.

Topography around Sipalay

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

Within 3 km, the terrain around Sipalay has only modest variations in elevation — a maximum elevation change of 169 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 510 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,440 m.

The land around Sipalay is covered by trees (36%) and water (36%) within 3 km, water (53%) and trees (41%) within 16 km, and water (60%) and trees (33%) within 80 km.

3 km

169 m

trees 36%

16 km

510 m

water 53%

80 km

1,440 m

water 60%

treesgrasslandcroplandartificial surfaceswatermangroves

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

September weather nearby: Asia 26 km · Kabankalan 52 km · Suay 59 km · Bayawan 61 km · Himamaylan 64 km · Santa Catalina 69 km · Binalbagan 70 km · Hinigaran 76 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 Sipalay (9.7519°, 122.4042°, 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	29	24
2	29	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	28	24
28	29	24
29	29	24
30	29	24

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	9	91
4	9	91
5	9	91
6	9	91
7	8	92
8	8	92
9	8	92
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	6	94
16	7	93
17	7	93
18	7	93
19	8	92
20	8	92
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	8	92
28	8	92
29	8	92
30	8	92

	Rain chance (%)
1	93
2	93
3	94
4	94
5	94
6	95
7	95
8	95
9	95
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	95
20	95
21	95
22	95
23	95
24	95
25	95
26	95
27	96
28	96
29	96
30	96

	Oppressive (%)	Miserable (%)
1	41	59
2	42	58
3	42	58
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	46	54
15	46	54
16	46	54
17	45	55
18	45	55
19	44	56
20	44	56
21	43	57
22	43	57
23	43	57
24	43	57
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	46	54

	Avg high (°C)	Avg low (°C)
1	29	24
2	29	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	28	24
28	29	24
29	29	24
30	29	24

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	9	91
4	9	91
5	9	91
6	9	91
7	8	92
8	8	92
9	8	92
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	6	94
16	7	93
17	7	93
18	7	93
19	8	92
20	8	92
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	8	92
28	8	92
29	8	92
30	8	92

	Rain chance (%)
1	93
2	93
3	94
4	94
5	94
6	95
7	95
8	95
9	95
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	95
20	95
21	95
22	95
23	95
24	95
25	95
26	95
27	96
28	96
29	96
30	96

	Oppressive (%)	Miserable (%)
1	41	59
2	42	58
3	42	58
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	46	54
15	46	54
16	46	54
17	45	55
18	45	55
19	44	56
20	44	56
21	43	57
22	43	57
23	43	57
24	43	57
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	46	54

	Avg high (°C)	Avg low (°C)
1	29	24
2	29	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	28	24
28	29	24
29	29	24
30	29	24

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	9	91
4	9	91
5	9	91
6	9	91
7	8	92
8	8	92
9	8	92
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	6	94
16	7	93
17	7	93
18	7	93
19	8	92
20	8	92
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	8	92
28	8	92
29	8	92
30	8	92

	Rain chance (%)
1	93
2	93
3	94
4	94
5	94
6	95
7	95
8	95
9	95
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	95
20	95
21	95
22	95
23	95
24	95
25	95
26	95
27	96
28	96
29	96
30	96

	Oppressive (%)	Miserable (%)
1	41	59
2	42	58
3	42	58
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	46	54
15	46	54
16	46	54
17	45	55
18	45	55
19	44	56
20	44	56
21	43	57
22	43	57
23	43	57
24	43	57
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	46	54