Hedaru in Summer
In summer (December, January and February), Hedaru sees average daytime highs around 30°C and overnight lows near 20°C, with 181 mm of rain over about 33 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 32% of the time across summer, and the air most often feels humid.
Summer is Hedaru's 3rd-best season to visit on our travel score. For the whole year in context, see Hedaru's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 181 mm
- 33 wet days
- Avg wind
- 5 km/h
- Travel score
- 5.1
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Hedaru in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Hedaru reaches about 30°C and drops to 20°C overnight. The warmest of the three months is February, the coolest January.
Hedaru weather by month
How the three summer months (December, January and February) 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 | 30° / 19° | 54 | 9.6 | 12.2 | 5.3 |
| Feb | 30° / 20° | 48 | 8.2 | 12.1 | 4.9 |
| Mar | 30° / 20° | 102 | 16.3 | 12 | 4.4 |
| Apr | 27° / 20° | 182 | 22.5 | 11.9 | 4.4 |
| May | 25° / 18° | 124 | 15.2 | 11.8 | 5.9 |
| Jun | 25° / 16° | 17 | 4 | 11.7 | 7.5 |
| Jul | 24° / 15° | 11 | 2.5 | 11.8 | 7.8 |
| Aug | 25° / 15° | 14 | 2.9 | 11.9 | 7.6 |
| Sep | 27° / 16° | 14 | 3.2 | 12 | 7.4 |
| Oct | 28° / 18° | 63 | 8.7 | 12.1 | 6.3 |
| Nov | 28° / 19° | 90 | 14.3 | 12.2 | 5.2 |
| Dec | 29° / 20° | 79 | 14.9 | 12.3 | 5.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 32% of the time across summer.
Chance of precipitation in Summer
Hedaru gets around 181 mm of rain over 33 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 min in early December to 12 h 06 min by late February. 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 6.2 kWh/m².
Hazard calendar for Hedaru
None of Hedaru's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Hedaru's rainy season runs March–May, when most of the year's rain falls.
Is summer a good time to visit Hedaru?
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 Hedaru for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Hedaru in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Hedaru sees daytime highs around 30°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 33 days see rain.
UV index in Hedaru in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hedaru peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 10 (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) | 15 | 15 | 15 | 15 | 12 | 10 | 11 | 11 | 13 | 14 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 15 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Air quality in Hedaru in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Hedaru is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 15 | 14 | 11 | 10 | 11 | 14 | 16 | 13 | 11 | 9 | 9 | 13 |
| Level | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 14 | Moderate |
| Mar | 11 | Good |
| Apr | 10 | Good |
| May | 11 | Good |
| Jun | 14 | Moderate |
| Jul | 16 | Moderate |
| Aug | 13 | Moderate |
| Sep | 11 | Good |
| Oct | 9 | Good |
| Nov | 9 | Good |
| Dec | 13 | Moderate |
Where is Hedaru?
Hedaru sits at 4.5°S, 37.9°E, 640 m above sea level, in Tanzania. The nearest listed city is Makuyuni, 34 km away.
Topography around Hedaru
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hedaru.
Within 3 km, the terrain around Hedaru has significant variations in elevation — a maximum elevation change of 416 m around an average of 662 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,658 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,131 m.
The land around Hedaru is covered by cropland (37%) and grassland (32%) within 3 km, shrubs (61%) within 16 km, and shrubs (68%) within 80 km.
Tanzania travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type D / G
- 230 V · 50 Hz
- Prices
- ≈ 29% of US
- price level, 2025
- GDP per capita
- $1,319
- 2025
- Happiness
- 3.9 / 10
- World Happiness, 2025
- Safe drinking water
- 31%
- of population, 2024
- Homicide rate
- 3.7
- per 100k, 2020
- Road deaths
- 31.1
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Low
- EF EPI 479
- 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 Hedaru (-4.5°, 37.9°, elevation 640 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.