Biñan, Philippines climate

Am Tropical monsoon

Biñan has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is May with an average daily high near 34°C, while the coldest is January averaging around 21°C at night. Precipitation totals about 2655 mm a year and is strongly seasonal — August alone averages 584 mm while February barely receives 18 mm.

☀️ All year

Hot

Daytime highs near 34°C most of the year.

About 194 days a year above 32 °C

🌙 Nights

Stays warm

Even the coolest nights stay near 21°C.

🌧️ Rain

Very wet

About 2655 mm of rain a year.

Wettest in August

⛅ Sky & trend

Often grey

Overcast skies dominate much of the year.

+1.4 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Biñan climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	31	33	35	34	33	32	31	32	32	32	31
Avg temp (°C)	26	26	28	29	30	29	28	28	28	28	27	26
Avg low (°C)	21	21	22	24	25	25	24	24	24	24	23	22
Precipitation (mm)	18	18	31	39	213	272	488	584	447	272	161	113

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	31	31	33	35	34	33
Avg temp (°C)	26	26	28	29	30	29
Avg low (°C)	21	21	22	24	25	25
Precipitation (mm)	18	18	31	39	213	272

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	31	32	32	32	31
Avg temp (°C)	28	28	28	28	27	26
Avg low (°C)	24	24	24	24	23	22
Precipitation (mm)	488	584	447	272	161	113

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	4	3	2	3	10	15	21	20	19	15	11	9
Days with high ≥ 32°C (days)	5	11	22	27	27	23	16	13	12	16	14	7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	4	3	2	3	10	15
Days with high ≥ 32°C (days)	5	11	22	27	27	23

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	21	20	19	15	11	9
Days with high ≥ 32°C (days)	16	13	12	16	14	7

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	70	62	55	52	68	78	85	87	85	78	73	75
Clear days (≤ 30% cloud)	2	3	6	6	2	0.8	0.5	0.4	0.3	1	2	2
Partly cloudy days (30–70%)	12	14	15	17	13	8	6	5	5	9	10	10
Cloudy days (≥ 70%)	17	11	10	7	16	21	25	25	24	21	18	20
Relative humidity (%)	86	83	79	75	78	83	87	88	88	88	89	89
Wind speed (km/h)	6.2	6.1	5.8	5.0	4.2	4.1	4.5	4.9	4.3	4.5	5.5	6.4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	70	62	55	52	68	78
Clear days (≤ 30% cloud)	2	3	6	6	2	0.8
Partly cloudy days (30–70%)	12	14	15	17	13	8
Cloudy days (≥ 70%)	17	11	10	7	16	21
Relative humidity (%)	86	83	79	75	78	83
Wind speed (km/h)	6.2	6.1	5.8	5.0	4.2	4.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	85	87	85	78	73	75
Clear days (≤ 30% cloud)	0.5	0.4	0.3	1	2	2
Partly cloudy days (30–70%)	6	5	5	9	10	10
Cloudy days (≥ 70%)	25	25	24	21	18	20
Relative humidity (%)	87	88	88	88	89	89
Wind speed (km/h)	4.5	4.9	4.3	4.5	5.5	6.4

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Science Garden, a weather station, about 33 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →