Climate averages 1991–2020

San Francisco, Philippines weather
in September.

A hot, very wet month: one of the warmest and the 7th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 30.6°C Daytime mean, September
Average low 23.8°C Night-time mean, September
Rainfall 207 mm 25 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in San Francisco · average highYear overview

September is a hot month in San Francisco, Philippines: daytime highs average 30.6°C and nights cool to about 23.8°C. By daytime temperature it is one of the warmest months of the year.

Expect about 207 mm of rain on roughly 25 days, which makes September a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.

The nearest other city in this atlas is Prosperidad (8 km away). In September its highs average 30.7°C, about as warm as San Francisco, Philippines, with 207 mm of rain.

Among the 151 cities listed in the Philippines, San Francisco, Philippines ranks joint 6th of 151 for the warmest September highs and joint 34th of 151 for the driest September (rainfall, lowest first). The mean September high of those 151 cities is 29.0°C; San Francisco, Philippines is 1.6°C warmer than that mean.

From September to October, average highs fall by 0.5°C to 30.1°C, and monthly rainfall falls from 207 mm to 206 mm.

The annual picture

September in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 20253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

San Francisco, Philippines climate table

1991–2020
Monthly climate averages for San Francisco, Philippines, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.0°C22.9°C22.9°C27024.311.712 h
February 28.2°C22.8°C22.8°C18920.211.812 h
March 28.9°C23.0°C23.0°C15620.212.112 h
April 29.9°C23.6°C23.6°C11918.312.312 h
May 30.4°C24.1°C24.1°C18926.312.513 h
June 30.1°C24.0°C24.0°C23626.812.613 h
July 30.1°C23.7°C23.7°C23026.712.613 h
August 30.6°C23.8°C23.8°C21925.312.412 h
September, selected 30.6°C23.8°C23.8°C20725.012.212 h
October 30.1°C23.7°C23.7°C20626.511.912 h
November 29.2°C23.5°C23.5°C19323.811.712 h
December 28.6°C23.3°C23.3°C21324.411.612 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

September in nearby cities

Distance from San Francisco

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Francisco) is explained once on the San Francisco, Philippines year overview and on the Sources, method and limits page.

Prosperidad lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.