Guanaja Weather in September
September in Guanaja sees daytime temperatures around 30°C (86°F) and lows of 27°C (81°F) at night. With around 111 mm (4.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Guanaja in September
Looking at the last 30 years, the data shows about 17 days with rain, averaging 111 mm (4.4 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Guanaja in September
Expect highs of 30°C (86°F) in Guanaja in September, with nights dropping to around 27°C (81°F). Overall, the month follows a fairly predictable daily temperature pattern. At 27°C (81°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Average water temperature in September
The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, April and May typically offer the best weather for Guanaja.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Honduras, check out our Guanaja's climate page.
Guanaja Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F)
Chance of Rain
58%
Precipitation
111 mm (4.4 in)
Rainy days
17 days
Daily Historical Temperatures
38-year average (1982-2025)
Based on our historical records, temperatures in Guanaja typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
38-year average (1982-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Guanaja in September
Browse day-by-day weather records for Guanaja spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guanaja historical weather extremes in September
Based on weather observations in Guanaja between 1996 and 2025, these are the recorded extremes during September.
- Guanaja recorded its highest September temperature of 35°C (95°F) on September 22, 1996.
- The coldest September day was on September 29, 2000, with a maximum of 27°C (81°F).
- Nighttime temperatures dropped to 17°C (63°F) on September 6, 2003, marking the coldest September night on record.
Best Places in Honduras in September
Find out more about the weather in Honduras and which places have the best travel conditions in this month. See all of Honduras in September →
perfect weather
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tolerable
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What to Wear in Guanaja in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off.What To Do in Guanaja in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Honduras, check out our Guanaja's climate page.
Temperature Rainfall Water Temp
See the full Guanaja climate overview or explore weather in Honduras.
