The month in detail
What to expect in September
In September, Diani Beach sees 27°C during the day with 6.5h of sunshine per day. Expect rain on 31% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if October (8.2/10) remains theoretically better.
September ranks 2 out of 12 months in Diani Beach.
This month's conditions
What it's like in September
UV index
9 · very high
protection essential
Feels like
muggy at times
21°
Sea
27°C
warm, ideal
Daylight
12.0h of daylight
Air quality
good
AQI 21
Compare
Is September the right month?
The best month in Diani Beach is October (8.2/10), 0.2 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Diani Beach
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Diani Beach
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.
Country · Kenya
🗣️LanguageEnglish
💶CurrencyShilling kényan (KSh)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘVery cheap · 1/5
🌡️ Climate
🌍Climate typeEquatorial tropical
📈Climate trend ⓘStable
🔥Hottest monthFebruary · 31°C
❄️Coolest monthJuly · 26°C
🌧️Rainiest month ⓘApril · 47%
🏝️ Tropical stay
🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘNone (equator)
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Diani Beach ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
KenyaEquatorial tropical climate with a 8.2 → 5.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
4.28°S · 39.58°E
Questions
Frequently asked questions
What is the best time to visit Diani Beach?
October is the best month with 28.0°C highs, 23.0°C lows, 7.0h of sunshine and 30.0% rainy days. The months of October & September offer comparable conditions.
How many hours of sunshine does Diani Beach get in October?
Diani Beach averages 7.0 sunshine hours per day in October. It is the sunniest month with a climate score of 7.8/10.
What is the rainiest month in Diani Beach?
April is the most unfavourable month with April has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Diani Beach in October?
In October, overnight lows reach 23.0°C, while afternoon highs average 28.0°C.
Is Diani Beach good in winter?
In winter (December-February), Diani Beach scores 5.7/10 on average — Decent period conditions for cultural visits.. The best month overall remains October with a score of 7.8/10.
When should you avoid Diani Beach?
April is the most difficult month to visit Diani Beach, with April has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Diani Beach in September?
In September, the sea averages 27°C in Diani Beach: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Diani Beach in September?
The average UV index reaches 9 in September in Diani Beach (very high), with about 12.0h of daylight. Protection essential.