Kilwa Masoko in Summer
In summer (December, January and February), Kilwa Masoko sees average daytime highs around 29°C and overnight lows near 26°C, with 329 mm of rain over about 50 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 29°C. The sky is clear or mostly clear about 29% of the time across summer, and the air most often feels oppressive.
Summer is Kilwa Masoko's weakest season of the year to visit on our travel score. Kilwa Masoko 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 Kilwa Masoko's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 26°C
- Rainfall
- 329 mm
- 50 wet days
- Avg wind
- 14 km/h
- Travel score
- 4.5
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Kilwa Masoko in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Kilwa Masoko reaches about 29°C and drops to 26°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Kilwa Masoko
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Kilwa Masoko 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 | 29° / 26° | 112 | 16.5 | 12.5 | 4.5 |
| Feb | 29° / 26° | 109 | 15.1 | 12.3 | 4.4 |
| Mar | 29° / 25° | 187 | 23.8 | 12.1 | 3.8 |
| Apr | 29° / 25° | 176 | 21.6 | 11.8 | 4.2 |
| May | 28° / 24° | 61 | 9.6 | 11.6 | 6.1 |
| Jun | 28° / 23° | 13 | 2.7 | 11.5 | 7.5 |
| Jul | 27° / 23° | 6 | 1.3 | 11.5 | 8.1 |
| Aug | 27° / 22° | 7 | 1.9 | 11.7 | 8.2 |
| Sep | 27° / 23° | 10 | 3.1 | 11.9 | 8.0 |
| Oct | 28° / 24° | 25 | 6.3 | 12.2 | 7.1 |
| Nov | 29° / 25° | 52 | 13.7 | 12.4 | 5.4 |
| Dec | 29° / 26° | 108 | 18.6 | 12.5 | 4.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 29% of the time across summer.
Chance of precipitation in Summer
Kilwa Masoko gets around 329 mm of rain over 50 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 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 30 min in early December to 12 h 12 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 5.8 kWh/m².
Hazard calendar for Kilwa Masoko
In summer, Kilwa Masoko overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
Kilwa Masoko sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Kilwa Masoko's monsoon runs December–April, when most of the year's rain falls.
Is summer a good time to visit Kilwa Masoko?
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 Kilwa Masoko for sightseeing.
What to pack for Kilwa Masoko in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Kilwa Masoko sees daytime highs around 29°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 50 days see rain.
Sea temperature near Kilwa Masoko in Summer
The nearest coast averages about 29°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 13 km away) is warmest in March at about 29°C and coldest in August near 26°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 | 28 | 27 | 26 | 26 | 26 | 27 | 28 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 29 | Tropical |
UV index in Kilwa Masoko in Summer
Clear-sky midday UV across summer averages 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 Kilwa Masoko peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (very high).
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) | 13 | 14 | 15 | 13 | 10 | 10 | 10 | 11 | 12 | 13 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 10 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Air quality in Kilwa Masoko 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 Kilwa Masoko is worst in January — around 15 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 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 | 13 | 9 | 8 | 8 | 8 | 10 | 10 | 9 | 10 | 8 | 9 |
| Level | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 13 | Moderate |
| Mar | 9 | Good |
| Apr | 8 | Good |
| May | 8 | Good |
| Jun | 8 | Good |
| Jul | 10 | Good |
| Aug | 10 | Good |
| Sep | 9 | Good |
| Oct | 10 | Good |
| Nov | 8 | Good |
| Dec | 9 | Good |
Where is Kilwa Masoko?
Kilwa Masoko sits at 8.9°S, 39.5°E, 23 m above sea level, in Tanzania. The nearest listed city is Kilindoni, 114 km away.
Topography around Kilwa Masoko
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kilwa Masoko.
Within 3 km, the terrain around Kilwa Masoko has only modest variations in elevation — a maximum elevation change of 20 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 114 m; within 80 km, significant variations in elevation — a maximum elevation change of 559 m.
The land around Kilwa Masoko is covered by water (45%) and grassland (31%) within 3 km, water (57%) within 16 km, and water (42%) and trees (37%) 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 Kilwa Masoko (-8.9251°, 39.5131°, elevation 23 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.