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General Santos, Philippines climate

Aw Tropical savanna (dry winter)

General Santos has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 34°C, while the coldest is February averaging around 23°C at night. Around 853 mm of precipitation falls each year, peaking in October (104 mm) and easing off in February (35 mm).

☀️ All year

Hot

Daytime highs near 34°C most of the year.

About 217 days a year above 32 °C

🌙 Nights

Stays warm

Even the coolest nights stay near 23°C.

🌧️ Rain

Moderate rainfall

About 853 mm of rain a year.

Wettest in October

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+3.6 °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

General Santos climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	33	34	34	34	32	32	32	32	33	33	33
Avg temp (°C)	29	28	30	31	31	30	29	29	30	30	30	30
Avg low (°C)	26	23	27	27	28	27	27	27	27	27	27	27
Precipitation (mm)	78	35	47	45	60	98	91	74	74	104	80	67

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	33	33	34	34	34	32
Avg temp (°C)	29	28	30	31	31	30
Avg low (°C)	26	23	27	27	28	27
Precipitation (mm)	78	35	47	45	60	98

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	32	32	33	33	33
Avg temp (°C)	29	29	30	30	30	30
Avg low (°C)	27	27	27	27	27	27
Precipitation (mm)	91	74	74	104	80	67

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	8	8	6	5	9	11	13	10	9	9	9	9
Days with high ≥ 32°C (days)	19	18	23	23	20	17	13	14	16	20	17	17
Days with low ≤ 0°C (days)	2	2	3	4	7	4	4	4	4	4	4	4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	8	8	6	5	9	11
Days with high ≥ 32°C (days)	19	18	23	23	20	17
Days with low ≤ 0°C (days)	2	2	3	4	7	4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	13	10	9	9	9	9
Days with high ≥ 32°C (days)	13	14	16	20	17	17
Days with low ≤ 0°C (days)	4	4	4	4	4	4

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	72	67	61	58	69	77	77	74	72	71	68	69
Clear days (≤ 30% cloud)	3	3	5	5	3	0.9	1	2	2	2	3	3
Partly cloudy days (30–70%)	10	11	13	14	12	9	9	10	10	11	12	11
Cloudy days (≥ 70%)	18	14	13	11	17	20	21	20	18	18	15	17
Relative humidity (%)	84	82	80	79	83	85	86	87	86	85	85	85
Wind speed (m/s)	2.6	2.9	2.7	2.3	2.1	2.1	2.3	2.4	2.2	2.1	2.0	2.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	72	67	61	58	69	77
Clear days (≤ 30% cloud)	3	3	5	5	3	0.9
Partly cloudy days (30–70%)	10	11	13	14	12	9
Cloudy days (≥ 70%)	18	14	13	11	17	20
Relative humidity (%)	84	82	80	79	83	85
Wind speed (m/s)	2.6	2.9	2.7	2.3	2.1	2.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	77	74	72	71	68	69
Clear days (≤ 30% cloud)	1	2	2	2	3	3
Partly cloudy days (30–70%)	9	10	10	11	12	11
Cloudy days (≥ 70%)	21	20	18	18	15	17
Relative humidity (%)	86	87	86	85	85	85
Wind speed (m/s)	2.3	2.4	2.2	2.1	2.0	2.2

Methodology & sources

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Precipitation — 1991–2020 normals computed from 11 years of daily observations at Gen. Santos, a weather station, about 1 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 →