Fortaleza in September

In September, Fortaleza averages 30°C (86°F) during the day and 25°C (76°F) at night, with only about 3 rainy days.

High season

Conditions are warm and beach-friendly. Skies are generally dry and clear.

September in Fortaleza is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).

30°C
Avg high
25°C
Avg low
3
Rain days
9 mm
Rainfall

How September compares to the rest of the year in Fortaleza

4th
warmest month of the 12
12th
wettest month of the 12
1%
of yearly rainfall falls in September
12 h 5 min
daylight on the 15th

September is in the middle of the year for warmth in Fortaleza (4th of 12) and one of the driest months (12th of 12). Daytime temperature runs 1°C above the annual average (30°C). September runs roughly the same as August (30°C) and stays flat into October.

September sunrise & sunset in Fortaleza

🌅
Sunrise (15th)
5:27 AM
🌇
Sunset (15th)
5:32 PM
Day length
12 h 5 min

Times shown for Fortaleza local time (America/Fortaleza), calculated for the 15th of September. They shift by a few minutes day to day across the month.

Photography light in Fortaleza — September

Golden-hour and blue-hour windows for the 15th of September, in Fortaleza's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
4:27 AM – 5:07 AM
🌄 Golden hour (AM)
5:07 AM – 6:07 AM
🌇 Golden hour (PM)
4:52 PM – 5:52 PM
🌆 Blue hour (PM)
5:52 PM – 6:32 PM
Milky Way galactic core
Fair
Core only briefly above the horizon — a marginal month even from dark sites near Fortaleza.

📅 When to book — Fortaleza in September

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and Fortaleza's popularity.

✈ Flights — lead time
2-3 months
Prices are above off-season but not the absolute peak. Tuesday/Wednesday departures are usually cheaper than weekend ones.
🏨 Lodging — lead time
2-3 months
Wide selection still available at this lead time. Premium properties book first; consider 'last-minute deal' availability at 2-week mark if your dates are flexible.

Crowds & pricing — September in Fortaleza

High season

This is a busy month in Fortaleza — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.

Why this tier: comfortable tourism weather beach-season conditions

Sun & mosquito risk — September in Fortaleza

☀️ UV Index (noon, 15th)
12.9
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●○
High
Peak mosquito activity. DEET 30%+, long sleeves at dawn/dusk, sleep under nets if rural. Check current dengue/malaria advisories for the destination.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Fortaleza in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 29°C / 85°F 25°C / 77°F 129 mm 21
February 29°C / 84°F 25°C / 76°F 191 mm 23
March 29°C / 84°F 24°C / 76°F 284 mm 27
April 29°C / 84°F 24°C / 76°F 253 mm 26
May 29°C / 85°F 25°C / 76°F 139 mm 22
June 29°C / 85°F 24°C / 75°F 78 mm 14
July 30°C / 85°F 24°C / 75°F 49 mm 10
August 30°C / 86°F 24°C / 76°F 13 mm 3
September 30°C / 86°F 25°C / 76°F 9 mm 3
October 30°C / 87°F 25°C / 78°F 11 mm 4
November 30°C / 87°F 26°C / 78°F 17 mm 7
December 30°C / 86°F 26°C / 78°F 46 mm 13

Other cities with similar September weather

🌍 See the full ranked list of climate twins for Fortaleza in September →

Frequently asked questions

How hot is Fortaleza in September?

In September, Fortaleza averages a high of 30°C (86°F) and a low of 25°C (76°F) — generally hot.

Does it rain a lot in Fortaleza in September?

September is generally dry in Fortaleza, with about 3 rainy days on average.

Is September a good time to visit Fortaleza?

September is hot and mostly dry. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Fortaleza in September?

Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full September packing list for Fortaleza for a complete, climate-based checklist.

Open Fortaleza on the interactive map

Check the live 10-day forecast and sunrise/sunset.