San Jose weather in May

In May, San Jose sees average daytime highs of 28°C and overnight lows near 27°C, with 128 mm of rain across 22.3 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 25% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is San Jose's 3rd-clearest and 11th-windiest month. For the whole year in context, see San Jose's year-round climate.

Daytime high
28°
5th warmest
Overnight low
27°
11th coldest
Rainfall
128 mm
22.3 wet days
Daylight
12 h 30 min
5:20 AM – 5:48 PM
Cloud cover
66%
3rd clearest
Wind
15 km/h
11th windiest
Solar energy
5.96 kWh/m²
Travel score
4.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in San Jose reaches about 28°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, May runs about 1°C warmer than April and on par with June.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132827
142827
152827
162827
172827
182827
192827
202827
212827
222827
232827
242827
252827
262827
272827
282827
292827
302827
312827

How May really feels in San Jose

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San Jose weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°36027.311.54.0
Feb27° / 25°27622.811.74.3
Mar27° / 25°21223.811.94.6
Apr27° / 26°1362212.24.7
May28° / 27°12822.312.54.3
Jun28° / 27°17023.312.63.8
Jul28° / 27°16021.212.54.1
Aug29° / 27°11517.612.34.4
Sep28° / 27°13019.312.14.2
Oct28° / 26°18924.311.84.1
Nov28° / 26°3102611.53.9
Dec27° / 26°38928.611.43.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
24951
34852
44753
54555
64456
74357
84258
94159
104060
114060
124060
133961
143862
153862
163862
173961
183961
193961
204060
214060
224060
234060
244060
253862
263862
273763
283664
293565
303565
313565

Chance of precipitation in May

Any precipitation

San Jose gets around 128 mm of rain over 22.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 72% and peaks near 77% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
177
277
377
477
577
677
776
876
975
1074
1174
1273
1372
1471
1571
1670
1770
1869
1969
2068
2168
2268
2368
2468
2568
2668
2768
2869
2969
3069
3170

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the miserable band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12872
22773
32674
42575
52377
62278
72179
82080
91981
101882
111882
121783
131684
141684
151585
161585
171486
181486
191585
201585
211585
221585
231585
241585
251585
261585
271585
281486
291486
301486
311486

Wind in May

Winds average 15 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 5:24 AM to 5:19 AM, and sunset from 5:46 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:245:46
212.45:245:46
312.45:245:46
412.45:235:46
512.45:235:46
612.45:235:46
712.45:225:46
812.45:225:46
912.45:225:47
1012.45:215:47
1112.45:215:47
1212.45:215:47
1312.45:215:47
1412.55:205:48
1512.55:205:48
1612.55:205:48
1712.55:205:48
1812.55:205:48
1912.55:205:49
2012.55:195:49
2112.55:195:49
2212.55:195:49
2312.55:195:49
2412.55:195:50
2512.55:195:50
2612.55:195:50
2712.55:195:50
2812.55:195:51
2912.55:195:51
3012.55:195:51
3112.55:195:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.96 kWh/m².

For context, solar energy here swings from a low near 4.15 kWh/m² to a high of 6.16 kWh/m² in April across the year — May's 5.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Intense
56.0Bright
66.0Bright
76.0Bright
86.0Bright
96.0Bright
106.0Bright
116.0Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Bright
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for San Jose

In seasonPeak

In May, San Jose sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

San Jose sits in the Pacific typhoon belt; the season peaks July–October.

San Jose's rainy season runs October–March, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit San Jose?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.3
Sightseeing
4th-best month of the year
5.0
Beach & pool
3rd-best month of the year

May is a reasonable time to visit San Jose for sightseeing.

What to pack for San Jose in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, San Jose sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near San Jose in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in June at about 29°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in San Jose in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Jose peaks around April 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 10UV 14Dec 16UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high
Location & terrain

Where is San Jose?

San Jose sits at 10.2°N, 125.6°E, 3 m above sea level, in Philippines. The nearest listed city is Surigao, 44 km away.

AbuyogInopacanBaybayBurauenCabadbaran

Topography around San Jose

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Jose.

Within 3 km, the terrain around San Jose has significant variations in elevation — a maximum elevation change of 272 m around an average of 45 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 734 m; within 80 km, large variations in elevation — a maximum elevation change of 1,002 m.

The land around San Jose is covered by trees (70%) within 3 km, trees (50%) and water (43%) within 16 km, and water (76%) and trees (21%) within 80 km.

3 km
272 m
16 km
734 m
80 km
1,002 m
treesgrasslandcroplandbare terrainwatermangroves
May weather nearby: Surigao 44 km · Siargao 63 km · Maasin 80 km · Abuyog 88 km · Inopacan 97 km · Baybay 101 km · Burauen 115 km · Cabadbaran 118 km

Philippines travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,171
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
4.3
per 100k, 2023
Road deaths
12
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 569
Religion
Roman Catholic 79%other 8%Muslim 6%other Christian 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Jose (10.18°, 125.5683°, elevation 3 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).