Nyanza in Summer
In summer (December, January and February), Nyanza sees average daytime highs around 25°C and overnight lows near 14°C, with 222 mm of rain over about 44 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 25°C. The sky is clear or mostly clear about 7% of the time across summer, and the air most often feels comfortable.
Summer is Nyanza's 2nd-best season to visit on our travel score. For the whole year in context, see Nyanza's year-round climate.
- Avg daytime high
- 25°C
- 3rd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 222 mm
- 44 wet days
- Avg wind
- 5 km/h
- Travel score
- 5.8
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Nyanza in Summer
Across summer, daytime highs hold fairly steady around 25°C.
A typical summer day in Nyanza reaches about 25°C and drops to 14°C overnight. The warmest of the three months is February, the coolest December.
Nyanza 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 | 25° / 14° | 73 | 14.6 | 12.1 | 5.9 |
| Feb | 25° / 14° | 68 | 13.4 | 12.1 | 5.8 |
| Mar | 25° / 14° | 91 | 18 | 12 | 5.4 |
| Apr | 24° / 14° | 121 | 23 | 11.9 | 4.6 |
| May | 24° / 14° | 64 | 14.2 | 11.9 | 6.1 |
| Jun | 24° / 14° | 12 | 3 | 11.9 | 7.9 |
| Jul | 25° / 14° | 4 | 1 | 11.9 | 8.2 |
| Aug | 26° / 15° | 17 | 3.2 | 11.9 | 7.6 |
| Sep | 26° / 15° | 38 | 7.9 | 12 | 6.8 |
| Oct | 25° / 14° | 94 | 17.2 | 12.1 | 5.5 |
| Nov | 24° / 14° | 105 | 20.7 | 12.1 | 4.9 |
| Dec | 24° / 14° | 80 | 15.7 | 12.1 | 5.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 7% of the time across summer.
Chance of precipitation in Summer
Nyanza gets around 222 mm of rain over 44 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — 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 06 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 5.5 kWh/m².
Is summer a good time to visit Nyanza?
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 Nyanza for sightseeing.
What to pack for Nyanza in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Nyanza sees daytime highs around 25°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 44 days see rain.
UV index in Nyanza 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 Nyanza peaks around March 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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) | 11 | 15 | 17 | 16 | 13 | 10 | 11 | 11 | 14 | 14 | 13 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 15 | Extreme |
| Mar | 17 | Extreme |
| Apr | 16 | Extreme |
| May | 13 | Extreme |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 13 | Extreme |
| Dec | 11 | Extreme |
Air quality in Nyanza 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 Nyanza is worst in January — around 82 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 82 | 80 | 73 | 66 | 66 | 75 | 67 | 72 | 72 | 68 | 72 | 77 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 82 | Unhealthy |
| Feb | 80 | Unhealthy |
| Mar | 73 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 66 | Unhealthy |
| Jun | 75 | Unhealthy |
| Jul | 67 | Unhealthy |
| Aug | 72 | Unhealthy |
| Sep | 72 | Unhealthy |
| Oct | 68 | Unhealthy |
| Nov | 72 | Unhealthy |
| Dec | 77 | Unhealthy |
Where is Nyanza?
Nyanza sits at 2.4°S, 29.8°E, 1,792 m above sea level, in Rwanda. The nearest listed city is Ruhango, 15 km away.
Topography around Nyanza
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nyanza.
Within 3 km, the terrain around Nyanza has significant variations in elevation — a maximum elevation change of 262 m around an average of 1,751 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 724 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,818 m.
The land around Nyanza is covered by cropland (51%) and grassland (22%) within 3 km, cropland (59%) and grassland (28%) within 16 km, and cropland (33%), trees (27%) and grassland (25%) within 80 km.
Rwanda travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type C / E / G
- 230 V · 50 Hz
- Prices
- ≈ 27% of US
- price level, 2025
- GDP per capita
- $1,124
- 2025
- Happiness
- 3.3 / 10
- World Happiness, 2021
- Homicide rate
- 3.6
- per 100k, 2020
- Road deaths
- 29.4
- per 100k/yr, 2019
- Income group
- Low
- World Bank
- English
- Very low
- EF EPI 417
- 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 Nyanza (-2.3519°, 29.7509°, elevation 1,792 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.