Olongapo City climate — normals and trends

Q: What is the climate of Olongapo City?

Olongapo City has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.3 °C and it receives 2,523 mm of precipitation per year.

Q: What is the hottest day ever recorded in Olongapo City?

The hottest day measured in Olongapo City between 1940 and 2025 was 8 May 1978, reaching 34.1 °C.

Q: What is the coldest day in Olongapo City?

The coldest day measured in Olongapo City between 1940 and 2025 was 10 January 1971, at 19.0 °C.

Q: Does it snow in Olongapo City?

Almost never: Olongapo City sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Olongapo City warmed?

Yes: Olongapo City warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Olongapo City?

The wettest day measured in Olongapo City between 1940 and 2025 was 15 July 1983, with 332 mm of rain in 24 hours.

Q: What was the windiest day in Olongapo City?

The windiest day measured in Olongapo City between 1940 and 2025 was 21 November 1942, with winds reaching 73.9 km/h.

Q: What is the warmest month in Olongapo City?

The warmest month in Olongapo City is May (27.8 °C on average); the coldest is January (25.0 °C).

Q: How much does it rain in Olongapo City?

Olongapo City receives on average 2,523 mm of precipitation per year, spread over about 183 rainy days.

Q: Is it sunny in Olongapo City?

Olongapo City gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Olongapo City (Philippines) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.3 °C and it receives 2,523 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is May (27.8 °C on average) and the coldest is January (25.0 °C). Rainfall peaks in August.

Olongapo City averages 0 frost days, 81 hot days (≥ 30 °C) and 183 rainy days per year.

Olongapo City has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.1 °C (on 8 May 1978) and the coldest 19.0 °C (on 10 January 1971).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Olongapo CityCentral Luzon

coords: 14.83°, 120.28°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthMayColdest monthJanuaryWettest monthAugustDriest monthFebruary

Mean daily temperature

26.3°C

Average daily high

28.8°C

Average daily low

24.3°C

Annual rainfall

2,523mm

Sunshine / day

10.1h

Mean relative humidity

79%

Average peak wind

15.8km/h

Seasonal range

2.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

81 d/yr

Rainy days (≥ 1 mm)

183 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.5 °C

Average feels-like low

27.6 °C

Average peak gust

34.0 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

18.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.68 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

34.1 °C

8 May 1978

Coldest day

19.0 °C

10 January 1971

Wettest day

332 mm

15 July 1983

Windiest day

73.9 km/h

21 November 1942

Strongest gust

152.6 km/h

21 November 1942

Hottest feels-like

40.7 °C

1 May 2000

Coldest feels-like

15.9 °C

19 January 1961

Sunniest day

12.3 h

13 July 1953

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.9 °C19 May 2025	23.0 °C28 January 2025	27.1 °C	3,364 mm	123
2024	34.1 °C4 May 2024	21.9 °C27 January 2024	27.5 °C	2,782 mm	185
2023	33.0 °C2 May 2023	22.4 °C17 February 2023	27.2 °C	2,534 mm	145
2022	34.1 °C8 May 2022	21.8 °C18 January 2022	27.2 °C	2,733 mm	157
2021	33.7 °C5 May 2021	21.2 °C20 February 2021	27.1 °C	2,353 mm	134
2020	33.2 °C5 May 2020	21.7 °C4 February 2020	27.2 °C	2,390 mm	151
2019	33.5 °C25 April 2019	21.9 °C28 January 2019	27.0 °C	2,837 mm	118
2018	33.4 °C4 May 2018	22.4 °C7 February 2018	27.0 °C	3,184 mm	137
2017	33.9 °C12 May 2017	20.9 °C15 February 2017	27.0 °C	2,554 mm	129
2016	33.5 °C6 May 2016	21.9 °C9 February 2016	27.1 °C	2,470 mm	120
2015	33.3 °C18 April 2015	21.6 °C10 January 2015	26.9 °C	2,389 mm	141
2014	33.8 °C7 May 2014	20.1 °C25 January 2014	26.7 °C	2,624 mm	99
2013	33.6 °C7 May 2013	21.7 °C25 January 2013	26.9 °C	2,735 mm	121
2012	33.1 °C29 April 2012	22.6 °C7 February 2012	26.6 °C	2,996 mm	108
2011	32.7 °C1 May 2011	21.4 °C2 February 2011	26.3 °C	3,346 mm	59
2010	33.4 °C13 May 2010	22.0 °C15 January 2010	27.0 °C	1,978 mm	139
2009	32.0 °C7 April 2009	20.0 °C15 January 2009	26.4 °C	3,404 mm	71
2008	32.6 °C13 April 2008	21.8 °C17 December 2008	26.5 °C	2,758 mm	84
2007	32.9 °C26 April 2007	20.7 °C30 January 2007	26.7 °C	2,161 mm	107
2006	32.5 °C14 April 2006	22.2 °C11 January 2006	26.7 °C	2,655 mm	106
2005	32.8 °C3 May 2005	20.8 °C16 January 2005	26.5 °C	2,290 mm	89
2004	33.3 °C26 April 2004	21.8 °C18 February 2004	26.5 °C	1,985 mm	76
2003	33.4 °C9 May 2003	21.4 °C27 January 2003	26.5 °C	2,108 mm	90
2002	32.4 °C5 May 2002	20.5 °C10 January 2002	26.4 °C	2,573 mm	101
2001	32.4 °C25 April 2001	21.2 °C28 December 2001	26.4 °C	2,553 mm	70
2000	32.0 °C29 April 2000	20.4 °C30 January 2000	26.3 °C	3,602 mm	61
1999	31.2 °C20 April 1999	20.7 °C24 December 1999	26.3 °C	2,576 mm	62
1998	33.3 °C7 May 1998	21.5 °C2 January 1998	27.1 °C	1,929 mm	158
1997	32.3 °C10 May 1997	20.6 °C18 January 1997	26.3 °C	1,978 mm	79
1996	32.6 °C2 May 1996	20.1 °C11 February 1996	26.4 °C	2,501 mm	100
1995	32.9 °C29 April 1995	20.3 °C30 December 1995	26.4 °C	2,986 mm	75
1994	31.8 °C25 April 1994	21.3 °C20 February 1994	26.4 °C	2,445 mm	41
1993	31.9 °C28 April 1993	20.0 °C29 January 1993	26.4 °C	2,312 mm	64
1992	32.2 °C25 April 1992	20.5 °C16 January 1992	26.3 °C	2,277 mm	78
1991	33.2 °C20 May 1991	21.8 °C17 January 1991	26.3 °C	2,845 mm	65
1990	33.8 °C27 April 1990	21.1 °C19 January 1990	26.5 °C	3,021 mm	60
1989	32.4 °C13 May 1989	20.6 °C10 March 1989	26.3 °C	2,774 mm	64
1988	33.3 °C18 May 1988	20.2 °C14 December 1988	26.8 °C	2,491 mm	104
1987	33.2 °C4 June 1987	19.7 °C6 February 1987	26.5 °C	1,832 mm	85
1986	32.0 °C30 April 1986	20.4 °C9 January 1986	26.1 °C	2,651 mm	46
1985	32.6 °C15 April 1985	20.1 °C26 December 1985	26.2 °C	2,902 mm	84
1984	32.5 °C8 April 1984	21.4 °C4 January 1984	26.0 °C	3,395 mm	54
1983	32.3 °C24 April 1983	20.8 °C8 February 1983	26.4 °C	2,213 mm	80
1982	32.3 °C16 May 1982	20.3 °C20 January 1982	26.0 °C	2,884 mm	72
1981	32.9 °C1 May 1981	19.3 °C21 December 1981	26.1 °C	2,921 mm	68
1980	33.0 °C2 May 1980	20.8 °C26 December 1980	26.4 °C	2,190 mm	78
1979	33.6 °C10 May 1979	20.9 °C15 December 1979	26.4 °C	2,643 mm	101
1978	34.1 °C8 May 1978	20.3 °C24 January 1978	26.3 °C	3,476 mm	82
1977	33.9 °C8 May 1977	19.3 °C6 March 1977	26.3 °C	2,503 mm	78
1976	32.8 °C20 April 1976	19.9 °C9 February 1976	25.9 °C	3,419 mm	80
1975	33.6 °C7 May 1975	20.0 °C31 December 1975	26.2 °C	2,222 mm	89
1974	33.3 °C13 April 1974	19.5 °C15 January 1974	26.0 °C	3,269 mm	72
1973	33.2 °C6 May 1973	20.2 °C27 December 1973	26.5 °C	2,289 mm	116
1972	32.4 °C18 April 1972	19.8 °C6 March 1972	25.9 °C	3,431 mm	56
1971	31.4 °C8 April 1971	19.0 °C10 January 1971	25.8 °C	2,729 mm	40
1970	33.2 °C18 April 1970	20.3 °C2 February 1970	26.4 °C	2,660 mm	83
1969	32.9 °C8 May 1969	20.2 °C7 February 1969	26.3 °C	2,075 mm	80
1968	31.7 °C13 June 1968	20.1 °C19 January 1968	25.9 °C	1,312 mm	68
1967	32.8 °C9 May 1967	19.5 °C17 January 1967	25.7 °C	2,047 mm	46
1966	32.8 °C21 April 1966	21.6 °C28 December 1966	26.1 °C	2,018 mm	53
1965	31.7 °C8 April 1965	19.7 °C4 January 1965	25.7 °C	1,641 mm	41
1964	32.5 °C10 April 1964	20.8 °C5 February 1964	26.1 °C	2,374 mm	63
1963	32.5 °C19 May 1963	19.4 °C1 March 1963	25.8 °C	2,431 mm	58
1962	33.3 °C13 May 1962	19.6 °C2 February 1962	26.2 °C	1,691 mm	73
1961	32.4 °C28 April 1961	19.1 °C19 January 1961	26.0 °C	2,439 mm	51
1960	31.9 °C24 May 1960	21.4 °C5 February 1960	26.4 °C	2,522 mm	59
1959	32.5 °C16 June 1959	20.6 °C19 January 1959	26.3 °C	1,478 mm	73
1958	33.2 °C22 April 1958	21.2 °C14 February 1958	26.3 °C	2,633 mm	96
1957	33.1 °C29 April 1957	20.4 °C14 February 1957	26.1 °C	2,516 mm	82
1956	31.6 °C28 March 1956	21.1 °C9 January 1956	25.8 °C	2,693 mm	60
1955	33.4 °C4 May 1955	19.4 °C23 February 1955	26.1 °C	1,656 mm	89
1954	33.4 °C18 May 1954	21.3 °C20 December 1954	26.4 °C	2,194 mm	108
1953	32.8 °C26 April 1953	20.9 °C7 January 1953	26.4 °C	1,570 mm	103
1952	32.8 °C27 April 1952	21.9 °C14 January 1952	26.3 °C	2,047 mm	105
1951	32.5 °C3 June 1951	20.9 °C25 January 1951	26.2 °C	1,525 mm	67
1950	31.7 °C25 April 1950	21.3 °C12 December 1950	26.0 °C	2,045 mm	62
1949	32.7 °C4 May 1949	20.4 °C17 February 1949	26.1 °C	2,276 mm	74
1948	32.0 °C5 May 1948	19.7 °C4 January 1948	25.7 °C	2,335 mm	40
1947	32.5 °C4 June 1947	20.9 °C31 December 1947	26.1 °C	2,338 mm	74
1946	31.5 °C26 March 1946	21.3 °C3 February 1946	25.7 °C	2,703 mm	38
1945	31.0 °C22 April 1945	21.5 °C10 March 1945	25.6 °C	2,051 mm	23
1944	30.5 °C23 April 1944	19.8 °C9 January 1944	25.3 °C	4,356 mm	8
1943	30.2 °C18 April 1943	19.7 °C13 January 1943	24.9 °C	2,284 mm	5
1942	31.6 °C24 April 1942	19.5 °C8 December 1942	25.5 °C	2,122 mm	34
1941	30.5 °C9 April 1941	20.5 °C5 February 1941	25.5 °C	3,560 mm	10
1940	31.2 °C27 April 1940	20.1 °C26 January 1940	25.2 °C	2,955 mm	18

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

29.4 °C

+0.6 °C

Hot days (≥ 30 °C)

123 d/yr

+42

Frost days (< 0 °C)

0 d/yr

Annual rainfall

3364 mm

+841 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.7 °C	+0.8 °C	32 mm	+16 mm
Feb	29.1 °C	+0.5 °C	44 mm	+29 mm
Mar	30.9 °C	+1.2 °C	16 mm	-2 mm
Apr	31.7 °C	+1.0 °C	26 mm	-7 mm
May	31.8 °C	+1.5 °C	136 mm	-27 mm
Jun	29.0 °C	+0.2 °C	576 mm	+184 mm
Jul	27.5 °C	-0.5 °C	849 mm	+324 mm
Aug	28.7 °C	+1.0 °C	391 mm	-166 mm
Sep	28.2 °C	+0.3 °C	673 mm	+266 mm
Oct	29.4 °C	+0.8 °C	354 mm	+107 mm
Nov	29.3 °C	+0.5 °C	182 mm	+86 mm
Dec	28.9 °C	+0.7 °C	85 mm	+29 mm

The year's extremes

Hottest day

33.9 °C

19 May 2025

Coldest day

23.0 °C

28 Jan 2025

Wettest day

114.9 mm

23 Sep 2025

Windiest day

49.8 km/h

10 Nov 2025

Strongest gust

96.8 km/h

9 Nov 2025

Hottest feels-like

39.9 °C

27 Apr 2025

Coldest feels-like

22.3 °C

9 Feb 2025

Sunniest day

12.1 h

22 May 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Olongapo City?

Olongapo City has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.3 °C and it receives 2,523 mm of precipitation per year.

What is the hottest day ever recorded in Olongapo City?

The hottest day measured in Olongapo City between 1940 and 2025 was 8 May 1978, reaching 34.1 °C.

What is the coldest day in Olongapo City?

The coldest day measured in Olongapo City between 1940 and 2025 was 10 January 1971, at 19.0 °C.

Does it snow in Olongapo City?

Almost never: Olongapo City sees virtually no snow, with about 0 frost days per year.

Has the climate of Olongapo City warmed?

Yes: Olongapo City warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Olongapo City?

The wettest day measured in Olongapo City between 1940 and 2025 was 15 July 1983, with 332 mm of rain in 24 hours.

What was the windiest day in Olongapo City?

The windiest day measured in Olongapo City between 1940 and 2025 was 21 November 1942, with winds reaching 73.9 km/h.

What is the warmest month in Olongapo City?

The warmest month in Olongapo City is May (27.8 °C on average); the coldest is January (25.0 °C).

How much does it rain in Olongapo City?

Olongapo City receives on average 2,523 mm of precipitation per year, spread over about 183 rainy days.

Is it sunny in Olongapo City?

Olongapo City gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Are there tropical nights in Olongapo City?

Yes: Olongapo City has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Olongapo City?

In Olongapo City, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 1 May 2000, and the lowest was 15.9 °C on 19 January 1961.

Compare Olongapo City with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Olongapo City

Other cities — Philippines

All cities in Philippines →