Tondano in Summer
In summer (June, July and August), Tondano sees average daytime highs around 27°C and overnight lows near 23°C, with 579 mm of rain over about 65 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 13% of the time across summer, and the air most often feels oppressive.
Summer is Tondano's best season of the year to visit on our travel score. Tondano has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Tondano's year-round climate.
- Avg daytime high
- 27°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 579 mm
- 65 wet days
- Avg wind
- 11 km/h
- Travel score
- 4.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Tondano in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Tondano reaches about 27°C and drops to 23°C overnight. The warmest of the three months is June, the coolest August.
Tondano weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 23° | 215 | 27.4 | 11.9 | 3.7 |
| Feb | 28° / 23° | 206 | 23 | 12 | 4.0 |
| Mar | 28° / 23° | 218 | 25.8 | 12 | 4.0 |
| Apr | 28° / 24° | 273 | 26.6 | 12 | 3.7 |
| May | 28° / 24° | 278 | 28.1 | 12.1 | 3.7 |
| Jun | 27° / 23° | 267 | 25.8 | 12.1 | 3.9 |
| Jul | 27° / 23° | 195 | 22.4 | 12.1 | 4.6 |
| Aug | 27° / 23° | 118 | 17.2 | 12 | 5.4 |
| Sep | 27° / 23° | 124 | 16.7 | 12 | 5.2 |
| Oct | 28° / 23° | 193 | 21.8 | 12 | 4.6 |
| Nov | 28° / 24° | 244 | 27.4 | 11.9 | 3.6 |
| Dec | 28° / 24° | 239 | 28.8 | 11.9 | 3.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 13% of the time across summer.
Chance of precipitation in Summer
Tondano gets around 579 mm of rain over 65 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 11 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early June to 12 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.5 kWh/m².
Is summer a good time to visit Tondano?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Tondano for sightseeing.
What to pack for Tondano in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tondano sees daytime highs around 27°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 65 days see rain.
Sea temperature near Tondano in Summer
The nearest coast averages about 28°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 25 km away) is warmest in May at about 29°C and coldest in August near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 28 | Tropical |
| Aug | 28 | Warm |
| Sep | 28 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Tondano in Summer
Clear-sky midday UV across summer averages 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 Tondano 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 15 | 14 | 12 | 12 | 12 | 13 | 14 | 14 | 11 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Tondano?
Tondano sits at 1.3°N, 124.9°E, 693 m above sea level, in Indonesia. The nearest listed city is Tomohon, 12 km away.
Topography around Tondano
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tondano.
Within 3 km, the terrain around Tondano has significant variations in elevation — a maximum elevation change of 276 m around an average of 710 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,537 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,962 m.
The land around Tondano is covered by trees (43%) and grassland (21%) within 3 km, trees (78%) within 16 km, and water (67%) and trees (30%) within 80 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
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 Tondano (1.3054°, 124.9126°, elevation 693 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.