Tandag weather in May

In May, Tandag sees average daytime highs of 30°C and overnight lows near 25°C, with 171 mm of rain across 26.5 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 11th-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 13% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is Tandag's 3rd-clearest and 7th-windiest month. For the whole year in context, see Tandag's year-round climate.

Daytime high
30°
4th warmest
Overnight low
25°
10th coldest
Rainfall
171 mm
26.5 wet days
Daylight
12 h 24 min
5:19 AM – 5:44 PM
Cloud cover
74%
3rd clearest
Wind
6 km/h
7th windiest
Solar energy
5.7 kWh/m²
Travel score
3.1
out of 10

Tandag is city of the Philippines and capital of the province of Surigao del Sur.

Density
99/km²
people per km²
Founded
2007

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 Tandag reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°C. Set against its neighbours, May runs about 1°C warmer than April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263026
273026
283026
293026
303026
313026

How May really feels in Tandag

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.

Tandag weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°51528.811.53.6
Feb28° / 24°36725.811.73.6
Mar28° / 24°27426.911.93.6
Apr29° / 25°16223.712.23.6
May30° / 25°17126.512.43.1
Jun30° / 25°2032612.52.9
Jul30° / 25°21026.112.53.0
Aug31° / 25°20024.612.33.0
Sep30° / 25°19524.912.12.9
Oct30° / 25°21826.711.83.0
Nov29° / 25°25926.211.63.2
Dec28° / 25°35028.711.53.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23466
33466
43367
53169
63169
73070
83070
92971
102971
112971
122971
132971
142971
152971
162971
173169
183169
193070
203070
213070
223070
233070
242971
252872
262872
272773
282674
292674
302575
312377

Chance of precipitation in May

Any precipitation

Tandag gets around 171 mm of rain over 26.5 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 85% and peaks near 87% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
183
283
384
485
585
686
786
887
987
1087
1187
1287
1387
1487
1587
1687
1786
1886
1985
2085
2184
2284
2383
2483
2583
2682
2782
2882
2982
3082
3182

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11189
21090
3991
4991
5892
6892
7793
8793
9694
10694
11595
12595
13595
14496
15496
16496
17496
18397
19397
20397
21397
22397
23298
24298
25298
26298
27298
28298
29298
30298
31298

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 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 12 minutes over May. Sunrise moves from 5:23 AM to 5:18 AM, and sunset from 5:42 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:235:42
212.35:235:42
312.35:225:42
412.35:225:42
512.35:225:42
612.45:215:42
712.45:215:42
812.45:215:43
912.45:205:43
1012.45:205:43
1112.45:205:43
1212.45:205:43
1312.45:205:43
1412.45:195:44
1512.45:195:44
1612.45:195:44
1712.45:195:44
1812.45:195:44
1912.45:195:44
2012.45:185:45
2112.45:185:45
2212.45:185:45
2312.55:185:45
2412.55:185:46
2512.55:185:46
2612.55:185:46
2712.55:185:46
2812.55:185:46
2912.55:185:47
3012.55:185:47
3112.55:185:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.7 kWh/m².

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 5.87 kWh/m² in April across the year — May's 5.7 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in May

Hazard calendar for Tandag

In seasonPeak

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

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

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

Is May a good time to visit Tandag?

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

3.1
Sightseeing
7th-best month of the year
4.3
Beach & pool
3rd-best month of the year

May is a weaker month for outdoor sightseeing in Tandag.

What to pack for Tandag in May

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

In May, Tandag sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Tandag 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 20 km away) is warmest in June at about 30°C and coldest in February near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar28Tropical
Apr29Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tandag 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 Tandag peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 22UV 14Dec 15UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Very high
Location & terrain

Where is Tandag?

Tandag sits at 9.1°N, 126.2°E, 8 m above sea level, in Philippines. The nearest listed city is Bayugan, 59 km away.

Topography around Tandag

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

Within 3 km, the terrain around Tandag has only modest variations in elevation — a maximum elevation change of 78 m around an average of 5 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 635 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,897 m.

The land around Tandag is covered by water (65%) and trees (22%) within 3 km, water (47%) and trees (44%) within 16 km, and trees (48%) and water (47%) within 80 km.

3 km
78 m
16 km
635 m
80 km
1,897 m
treesgrasslandcroplandartificial surfaceswatermangroves
May weather nearby: Bayugan 59 km · Bah-Bah 61 km · Prosperidad 65 km · San Francisco 66 km · Tagbina 70 km · Cabadbaran 73 km · Butuan 73 km · Libertad 78 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 Tandag (9.0783°, 126.1986°, elevation 8 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).