Tomohon weather in May

In May, Tomohon sees average daytime highs of 29°C and overnight lows near 23°C, with 354 mm of rain across 29 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 6% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Tomohon's 6th-clearest and 9th-windiest month. For the whole year in context, see Tomohon's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
23°
12th coldest
Rainfall
354 mm
29 wet days
Daylight
12 h 06 min
5:35 AM – 5:39 PM
Cloud cover
79%
6th clearest
Wind
4 km/h
9th windiest
Solar energy
5.22 kWh/m²
Travel score
3.1
out of 10

Tomohon is city in North Sulawesi Province, Indonesia.

Density
188/km²
people per km²
Founded
2003

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 29°C through the month.

A typical May day in Tomohon reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12923
22923
32923
42923
52923
62923
72923
82923
92923
102923
112923
122923
132923
142923
152923
162923
172923
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312822

How May really feels in Tomohon

Once humidity and wind are folded in, May averages 16 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
16
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.

Tomohon weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 22°30428.911.93.5
Feb28° / 22°28225.3123.6
Mar28° / 22°29528.4123.3
Apr29° / 22°33227.4123.2
May29° / 23°3542912.13.1
Jun28° / 22°33926.312.13.6
Jul28° / 22°25323.312.14.3
Aug28° / 22°16618.4124.6
Sep29° / 21°18919.5124.1
Oct29° / 22°27624.7123.5
Nov29° / 22°31928.711.93.0
Dec28° / 22°3233011.93.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
21090
31090
41189
51189
61189
71288
81387
91486
101585
111684
121783
131981
142080
152080
162179
172278
182377
192476
202476
212476
222575
232575
242476
252377
262278
272278
282179
292179
302080
311981

Chance of precipitation in May

Any precipitation

Tomohon gets around 354 mm of rain over 29 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 93% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
294
395
495
595
695
795
895
995
1095
1195
1295
1394
1494
1594
1694
1794
1894
1993
2093
2193
2292
2392
2492
2591
2691
2791
2891
2991
3091
3191

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10982
20982
30982
40982
50982
60973
70973
80973
90973
100973
110973
120973
130973
140973
150973
160964
170964
180964
190964
200964
210964
220964
230964
240964
250964
261954
271954
281963
291963
302953
312953

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
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 hours at the start of May to 12 h 06 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 5:37 AM to 5:36 AM, and sunset from 5:39 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:375:39
212.05:365:39
312.05:365:39
412.05:365:39
512.05:365:39
612.15:365:39
712.15:365:39
812.15:365:39
912.15:365:39
1012.15:365:39
1112.15:355:39
1212.15:355:39
1312.15:355:39
1412.15:355:39
1512.15:355:39
1612.15:355:39
1712.15:355:39
1812.15:355:39
1912.15:355:39
2012.15:355:39
2112.15:355:39
2212.15:355:39
2312.15:355:39
2412.15:355:39
2512.15:365:39
2612.15:365:40
2712.15:365:40
2812.15:365:40
2912.15:365:40
3012.15:365:40
3112.15:365:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.22 kWh/m².

For context, solar energy here swings from a low near 4.89 kWh/m² to a high of 6.16 kWh/m² in September across the year — May's 5.22 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Is May a good time to visit Tomohon?

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

3.1
Sightseeing
10th-best month of the year
3.9
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Tomohon.

What to pack for Tomohon in May

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

In May, Tomohon sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Tomohon in May

The nearest coast averages about 30°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 21 km away) is warmest in June at about 30°C and coldest in February near 29°C.

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

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Tomohon in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tomohon peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 19 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 12UV 15Nov 19UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep14Extreme
Oct14Extreme
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Tomohon?

Tomohon sits at 1.3°N, 124.8°E, 734 m above sea level, in Indonesia. The nearest listed city is Tondano, 12 km away.

TernateSofifiLuwuk

Topography around Tomohon

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

Within 3 km, the terrain around Tomohon has significant variations in elevation — a maximum elevation change of 490 m around an average of 719 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,565 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,962 m.

The land around Tomohon is covered by trees (80%) within 3 km, trees (79%) within 16 km, and water (65%) and trees (32%) within 80 km.

3 km
490 m
16 km
1,565 m
80 km
1,962 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Tondano 12 km · Manado 19 km · Bitung 39 km · Gorontalo 212 km · Tahuna 266 km · Ternate 293 km · Sofifi 313 km · Luwuk 337 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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 Tomohon (1.3168°, 124.8038°, elevation 734 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. 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).