Calapan weather in September

In September, Calapan sees average daytime highs of 30°C and overnight lows near 25°C, with 320 mm of rain across 26.2 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 2nd-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 4% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Calapan's 10th-clearest and 11th-windiest month. For the whole year in context, see Calapan's year-round climate.

Daytime high: 30°; 5th warmest
Overnight low: 25°; 8th coldest
Rainfall: 320 mm; 26.2 wet days
Daylight: 12 h 06 min; 5:47 AM – 5:52 PM
Cloud cover: 87%; 10th clearest
Wind: 5 km/h; 11th windiest
Solar energy: 4.94 kWh/m²
Travel score: 2.8; out of 10

Calapan is city of the Philippines and capital of the province of Oriental Mindoro.

Density: 264/km²; people per km²
Founded: 1917

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

← August Calapan 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 Calapan 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 29°C and 32°C. Set against its neighbours, September runs on par with August and about 1°C warmer 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)	31	31	31	31	31	31	31	31	31	31	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	31	25
2	31	25
3	31	25
4	31	25
5	31	25
6	31	25
7	31	25
8	31	25
9	31	25
10	31	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 Calapan

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.

Calapan weather by month

How September compares with the rest of the year at a glance. September is the 5th-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	28° / 23°	222	25.2	11.3	4.2
Feb	28° / 23°	164	18.8	11.6	4.6
Mar	29° / 24°	138	18.4	11.9	4.5
Apr	31° / 25°	84	15.3	12.3	4.2
May	31° / 26°	173	23.1	12.6	3.0
Jun	31° / 26°	225	25.2	12.8	2.7
Jul	30° / 25°	312	27.1	12.7	2.8
Aug	31° / 25°	238	25	12.4	2.9
Sep	30° / 25°	320	26.2	12.1	2.8
Oct	30° / 25°	264	26.6	11.7	3.1
Nov	29° / 25°	281	26.8	11.4	3.3
Dec	28° / 24°	439	28.2	11.2	3.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% 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 89%.

	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 (%)	11	11	11	11	11	11	11	11	10	10	10	8	8	8	9	9	9	9	9	10	11	11	11	13	13	14	14	14	16	16
Cloudier (%)	89	89	89	89	89	89	89	89	90	90	90	92	92	92	91	91	91	91	91	90	89	89	89	87	87	86	86	86	84	84

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	10	90
10	10	90
11	10	90
12	8	92
13	8	92
14	8	92
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	10	90
21	11	89
22	11	89
23	11	89
24	13	87
25	13	87
26	14	86
27	14	86
28	14	86
29	16	84
30	16	84

Chance of precipitation in September

Any precipitation

Calapan gets around 320 mm of rain over 26.2 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 89% 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 (%)	82	82	82	83	83	84	84	85	86	86	87	87	88	88	89	89	89	89	89	89	89	89	89	89	89	89	89	89	88	88

	Rain chance (%)
1	82
2	82
3	82
4	83
5	83
6	84
7	84
8	85
9	86
10	86
11	87
12	87
13	88
14	88
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	88
30	88

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 91% 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 (%)	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	8	8	8	8	9	9	9	10	11	11	12	13
Miserable (%)	92	92	92	91	91	91	91	91	91	91	91	91	91	91	91	91	91	91	92	92	92	92	91	91	91	90	89	89	88	87

	Oppressive (%)	Miserable (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	9	91
7	9	91
8	9	91
9	9	91
10	9	91
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	8	92
20	8	92
21	8	92
22	8	92
23	9	91
24	9	91
25	9	91
26	10	90
27	11	89
28	11	89
29	12	88
30	13	87

Wind in September

Winds average 5 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)	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	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	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 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 24 minutes over September. Sunrise moves from 5:47 AM to 5:48 AM, and sunset from 6:03 PM to 5:41 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)	12.3	12.3	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.9
Sunrise (AM)	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:47	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:48
Sunset (PM)	6:03	6:02	6:01	6:01	6:00	5:59	5:59	5:58	5:57	5:56	5:56	5:55	5:54	5:53	5:53	5:52	5:51	5:50	5:50	5:49	5:48	5:47	5:47	5:46	5:45	5:44	5:44	5:43	5:42	5:41

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	5:47	6:03
2	12.3	5:47	6:02
3	12.2	5:47	6:01
4	12.2	5:47	6:01
5	12.2	5:47	6:00
6	12.2	5:47	5:59
7	12.2	5:47	5:59
8	12.2	5:47	5:58
9	12.2	5:47	5:57
10	12.2	5:47	5:56
11	12.1	5:47	5:56
12	12.1	5:47	5:55
13	12.1	5:47	5:54
14	12.1	5:47	5:53
15	12.1	5:47	5:53
16	12.1	5:47	5:52
17	12.1	5:47	5:51
18	12.0	5:47	5:50
19	12.0	5:47	5:50
20	12.0	5:47	5:49
21	12.0	5:47	5:48
22	12.0	5:47	5:47
23	12.0	5:48	5:47
24	12.0	5:48	5:46
25	12.0	5:48	5:45
26	11.9	5:48	5:44
27	11.9	5:48	5:44
28	11.9	5:48	5:43
29	11.9	5:48	5:42
30	11.9	5:48	5:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.94 kWh/m².

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.57 kWh/m² in April across the year — September's 4.94 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)	5.2	5.2	5.2	5.2	5.1	5.1	5.1	5.1	5.0	5.0	5.0	5.0	4.9	4.9	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8
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	5.2	Bright
2	5.2	Bright
3	5.2	Bright
4	5.2	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.0	Bright
10	5.0	Bright
11	5.0	Bright
12	5.0	Bright
13	4.9	Bright
14	4.9	Bright
15	4.9	Bright
16	4.9	Bright
17	4.9	Bright
18	4.8	Bright
19	4.8	Bright
20	4.8	Bright
21	4.8	Bright
22	4.8	Bright
23	4.8	Bright
24	4.8	Bright
25	4.8	Bright
26	4.8	Bright
27	4.8	Bright
28	4.8	Bright
29	4.8	Bright
30	4.8	Bright

Planning a trip in September

Hazard calendar for Calapan

In seasonPeak

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

Calapan 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 Calapan?

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

2.8

Sightseeing

10th-best month of the year

4.0

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Calapan.

What to pack for Calapan in September

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

In September, Calapan 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 Calapan 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 21 km away) is warmest in June at about 30°C and coldest in January 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)	26	26	27	29	30	30	29	29	29	29	28	27
Comfort	Warm	Warm	Warm	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Warm

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

UV index in Calapan 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 Calapan peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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)	10	12	12	13	13	13	12	14	13	11	9	9
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

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

Location & terrain

Where is Calapan?

Calapan sits at 13.4°N, 121.2°E, 8 m above sea level, in Philippines. The nearest listed city is Rosario, 25 km away.

Topography around Calapan

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

Within 3 km, the terrain around Calapan has only modest variations in elevation — a maximum elevation change of 190 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 190 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,538 m.

The land around Calapan is covered by trees (38%) and water (35%) within 3 km, water (58%) and cropland (20%) within 16 km, and water (47%) and trees (40%) within 80 km.

3 km

190 m

trees 38%

16 km

190 m

water 58%

80 km

2,538 m

water 47%

treesgrasslandcroplandartificial surfaceswatermangroves

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

September weather nearby: Rosario 25 km · Puerto Galera 27 km · Victoria 28 km · Batangas 41 km · Bauan 46 km · San Pascual 48 km · Pinamalayan 51 km · Cuenca 56 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 Calapan (13.4117°, 121.1803°, elevation 8 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	31	25
2	31	25
3	31	25
4	31	25
5	31	25
6	31	25
7	31	25
8	31	25
9	31	25
10	31	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	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	10	90
10	10	90
11	10	90
12	8	92
13	8	92
14	8	92
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	10	90
21	11	89
22	11	89
23	11	89
24	13	87
25	13	87
26	14	86
27	14	86
28	14	86
29	16	84
30	16	84

	Rain chance (%)
1	82
2	82
3	82
4	83
5	83
6	84
7	84
8	85
9	86
10	86
11	87
12	87
13	88
14	88
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	88
30	88

	Oppressive (%)	Miserable (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	9	91
7	9	91
8	9	91
9	9	91
10	9	91
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	8	92
20	8	92
21	8	92
22	8	92
23	9	91
24	9	91
25	9	91
26	10	90
27	11	89
28	11	89
29	12	88
30	13	87

	Avg high (°C)	Avg low (°C)
1	31	25
2	31	25
3	31	25
4	31	25
5	31	25
6	31	25
7	31	25
8	31	25
9	31	25
10	31	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	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	10	90
10	10	90
11	10	90
12	8	92
13	8	92
14	8	92
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	10	90
21	11	89
22	11	89
23	11	89
24	13	87
25	13	87
26	14	86
27	14	86
28	14	86
29	16	84
30	16	84

	Rain chance (%)
1	82
2	82
3	82
4	83
5	83
6	84
7	84
8	85
9	86
10	86
11	87
12	87
13	88
14	88
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	88
30	88

	Oppressive (%)	Miserable (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	9	91
7	9	91
8	9	91
9	9	91
10	9	91
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	8	92
20	8	92
21	8	92
22	8	92
23	9	91
24	9	91
25	9	91
26	10	90
27	11	89
28	11	89
29	12	88
30	13	87

	Avg high (°C)	Avg low (°C)
1	31	25
2	31	25
3	31	25
4	31	25
5	31	25
6	31	25
7	31	25
8	31	25
9	31	25
10	31	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	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	10	90
10	10	90
11	10	90
12	8	92
13	8	92
14	8	92
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	10	90
21	11	89
22	11	89
23	11	89
24	13	87
25	13	87
26	14	86
27	14	86
28	14	86
29	16	84
30	16	84

	Rain chance (%)
1	82
2	82
3	82
4	83
5	83
6	84
7	84
8	85
9	86
10	86
11	87
12	87
13	88
14	88
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	88
30	88

	Oppressive (%)	Miserable (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	9	91
7	9	91
8	9	91
9	9	91
10	9	91
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	8	92
20	8	92
21	8	92
22	8	92
23	9	91
24	9	91
25	9	91
26	10	90
27	11	89
28	11	89
29	12	88
30	13	87