Climate averages 1991–2020

San Fernando weather
in May.

A hot, wet month: the 2nd warmest and the 7th driest of the year.

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

Average high 32.4°C Daytime mean, May
Average low 25.2°C Night-time mean, May
Rainfall 136 mm 18 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in San Fernando · average highYear overview

May is a hot month in San Fernando: daytime highs average 32.4°C and nights cool to about 25.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 136 mm of rain on roughly 18 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 49 min on an average May day.

The nearest other city in this atlas is Bulaon (6 km away). In May its highs average 32.6°C, about as warm as San Fernando, with 136 mm of rain.

Among the 151 cities listed in the Philippines, San Fernando ranks joint 16th of 151 for the warmest May highs and joint 20th of 151 for the driest May (rainfall, lowest first). The mean May high of those 151 cities is 30.7°C; San Fernando is 1.7°C warmer than that mean.

From May to June, average highs fall by 1.7°C to 30.7°C, and monthly rainfall rises from 136 mm to 194 mm.

The annual picture

May 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. 1520253035 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 3500

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

Every month, side by side

San Fernando climate table

1991–2020
Monthly climate averages for San Fernando, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.4°C21.5°C21.5°C273.211.311 h
February 29.3°C21.5°C21.5°C232.611.612 h
March 31.0°C22.4°C22.4°C293.612.012 h
April 32.8°C24.1°C24.1°C265.512.512 h
May, selected 32.4°C25.2°C25.2°C13617.712.813 h
June 30.7°C25.0°C25.0°C19424.313.013 h
July 29.5°C24.7°C24.7°C32028.312.913 h
August 29.2°C24.6°C24.6°C28428.512.613 h
September 29.3°C24.3°C24.3°C27926.812.212 h
October 29.5°C23.8°C23.8°C17517.911.812 h
November 29.3°C23.3°C23.3°C799.511.411 h
December 28.5°C22.5°C22.5°C847.211.311 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

May in nearby cities

Distance from San Fernando

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 Fernando) is explained once on the San Fernando year overview and on the Sources, method and limits page.

Bulaon, Apalit and Plaridel lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.