Diadi weather in May

In May, Diadi sees average daytime highs of 30°C and overnight lows near 21°C, with 362 mm of rain across 19.3 wet days and about 12.8 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Diadi's 5th-clearest and 6th-windiest month. For the whole year in context, see Diadi's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
21°
8th coldest
Rainfall
362 mm
19.3 wet days
Daylight
12 h 48 min
5:27 AM – 6:14 PM
Cloud cover
70%
5th clearest
Wind
4 km/h
6th windiest
Solar energy
5.59 kWh/m²
Travel score
3.8
out of 10

Diadi is municipality of the Philippines in the province of Nueva Vizcaya.

Density
86/km²
people per km²
Founded
1967

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in Diadi reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, May runs about 2°C warmer than April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293122
303122
313122

How May really feels in Diadi

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.

Diadi weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 18°20921.211.15.1
Feb25° / 18°17618.211.45.2
Mar27° / 19°15415.811.95.8
Apr29° / 21°13914.312.45.2
May30° / 21°36219.312.83.8
Jun31° / 22°26519.6133.4
Jul30° / 22°39924.412.93.2
Aug30° / 22°48926.412.63.0
Sep29° / 22°45525.412.13.3
Oct28° / 21°27020.711.64.5
Nov26° / 20°19316.811.25.4
Dec25° / 19°25820.7115.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
34951
44753
54654
64555
74456
84357
94258
104258
113961
123862
133763
143664
153664
163367
173268
183169
192971
202872
212773
222674
232476
242476
252377
262377
272278
282179
292179
302179
312080

Chance of precipitation in May

Any precipitation

Diadi gets around 362 mm of rain over 19.3 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 62% and peaks near 76% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
146
246
347
448
548
649
750
850
951
1052
1154
1255
1357
1458
1560
1662
1764
1865
1967
2069
2170
2272
2373
2474
2575
2675
2776
2876
2976
3075
3175

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
133364
223266
323167
422969
522870
612673
712574
812376
912277
1012079
1101981
1201783
1301684
1401585
1501486
1601387
1701288
1801288
1901189
2001189
2101090
2201090
2301090
240991
250991
260991
270991
280991
290991
300991
310892

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:34 AM to 5:24 AM, and sunset from 6:10 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:346:10
212.65:336:10
312.65:336:10
412.65:326:10
512.65:326:11
612.75:316:11
712.75:316:11
812.75:306:12
912.75:306:12
1012.75:306:12
1112.75:296:13
1212.75:296:13
1312.75:286:13
1412.85:286:14
1512.85:286:14
1612.85:276:14
1712.85:276:15
1812.85:276:15
1912.85:276:15
2012.85:266:16
2112.85:266:16
2212.85:266:16
2312.95:266:17
2412.95:256:17
2512.95:256:17
2612.95:256:18
2712.95:256:18
2812.95:256:18
2912.95:256:19
3012.95:256:19
3112.95:246:19

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.59 kWh/m².

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 5.81 kWh/m² in April across the year — May's 5.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Diadi?

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

3.8
Sightseeing
8th-best month of the year
5.3
Beach & pool
3rd-best month of the year

May is a weaker month for outdoor sightseeing in Diadi.

What to pack for Diadi in May

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

In May, Diadi sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Diadi 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 Diadi peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 17UV 14Dec 13UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Diadi in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Diadi is worst in April — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1616 µg/m³Dec 1611 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Good
Mar15Moderate
Apr17Moderate
May14Moderate
Jun13Moderate
Jul13Moderate
Aug15Moderate
Sep14Moderate
Oct13Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Diadi?

Diadi sits at 16.7°N, 121.4°E, 276 m above sea level, in Philippines. The nearest listed city is Ramon, 20 km away.

Topography around Diadi

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

Within 3 km, the terrain around Diadi has significant variations in elevation — a maximum elevation change of 268 m around an average of 276 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 829 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,878 m.

The land around Diadi is covered by trees (62%) and cropland (24%) within 3 km, trees (47%) and grassland (31%) within 16 km, and trees (71%) within 80 km.

3 km
268 m
16 km
829 m
80 km
2,878 m
treesgrasslandcroplandwater
May weather nearby: Ramon 20 km · Santiago 21 km · Lagawe 27 km · Solano 30 km · San Mateo 30 km · Baggabag B 30 km · Bayombong 35 km · Alicia 37 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 Diadi (16.7262°, 121.3589°, elevation 276 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).