- Save up to £25 on holidays with Travel Up
- Book breaks across Europe, Asia & beyond
- Valid on bookings over £750. Use promo code
Lethem weather in September 2025
Expect 33°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Lethem in September. Check more long-term weather averages for Lethem in September before you book your next holiday to Guyana in 2025/2026.
- 3333°C max day temperature
- 8 hours of sunshine per day
- 1313 days with some rainfall
- 2323°C min night temperature
- 1212 hours of daylight per day
- VHVery High heat & humidity
- 8383 mm of monthly rainfall
- 1111+ (Extreme) UV index
More about Lethem
- Overview
- Best time to visit
- Weather by month
- 5-day weather forecast
- Destinations
- Travel advice
- Deals & discounts
Lethem by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Guyana
Expires at 23:59 on Saturday 30th Nov 2024 · View all Travel Up offers
The September weather guide for Guyana (Lethem) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Lethem in September?
Daytime temperatures usually reach 33°C in Lethem in September with very high heat and humidity, falling to 23°C at night.
How sunny is it in Lethem in September?
There are normally 8 hours of bright sunshine each day in Lethem in September - that's 68% of daylight hours.
Does it rain in Lethem in September?
There are usually 13 days with some rain in Lethem in September and the average monthly rainfall is 83mm.
Lethem September sunrise & sunset times
Browse the sunrise and sunset times for Lethem in September 2025. Select a month to view Lethem sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:54 | 18:04 |
Monday, 15th September 2025 | 05:50 | 17:58 |
Tuesday, 30th September 2025 | 05:47 | 17:52 |
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- easyJet holidays
- Love Holidays
- Black Friday sales
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport