Destination · Hourly model wind, 2017 to 2025

Confidence highClose model cell, both models agree on the season, 9 full years.

Kitesurfing in Ilha do Guajiru, Brazil

Name: Ilha do Guajiru
Address: BRA

Lagoon in Brazil · 4 kite spots · airports FOR, JJD, PHB

Best for kiting all year except March and April, with 52 to 100 % kite days. Water 27 to 29 °C.

Season 23 Apr to 4 Mar, peak 30 Apr to 11 Feb.

A kite day has at least 3 hours of 12 to 35 kn model wind between 10:00 and 19:00 in daylight, with gusts up to 45 kn. Percentages are the share of such days in each month, counted over 2017 to 2025.

Numbers on this page are from Guajiru, the main spot of Ilha do Guajiru. The other 3 spots range from 96 to 98 % kite days in October.

Kite Year

Kite days per month, in % of days. Colour is the verdict, the number is the share. Tap a month for its details.

JJan71Prime
FFeb52Good
MMar36Possible
AApr39Possible
MMay76Prime
JJun92Prime
JJul98Prime
AAug99Prime
SSep100Prime
OOct98Primenow · chosen
NNov98Prime
DDec91Prime

Prime 60 % and more
Good 40 to 59 %
Possible 20 to 39 %
Off under 20 %
No data hatched
Ringed: this month
Raised: your chosen month

Prime also needs a good month in at least 7 of the 9 years, so one freak year cannot make a month Prime. A month with 60 %+ but fewer good years shows as Good.

October in Ilha do Guajiru, this month, averaged over 2017 to 2025.

KITE DAYS: 30 of 31; 98 % kite days, Prime, good in 9 of 9 years
WIND: 17 knots; afternoon average, 12:00 to 18:00
WATER: 28 °C, boardshorts; suit for 27 °C and warmer

9 in 10

trips of 10 days starting in October got at least 5 kite days in 2017 to 2025 (9 Octobers, capped at 9 in 10).

about 9.7 kite days expected out of 10.

x in 10 reads: of all 10 day trips that started in that month between 2017 and 2025, x in 10 got at least 5 kite days. We cap the figure at 9 in 10 because wind is never a promise. How we count trip odds

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Live forecast How we count a kite day

Month by month

Tap a month for trip odds, good years, best hours, water, air and rain.

MonthKite days% of days, verdict10 day tripof 10 trips, 5+ kite daysWater°C, what to wear

Kite days
98 % Primeabout 30 of 31 days
Too light, kiteable, too strong
Too light 2 %
Kiteable 98 %
Too strong 0 %
Good years
9 of 9 years reached 50 % kite days
10 day trip
9 in 10 trips got at least 5 kite days, about 9.7 expected (capped at 9 in 10)
Best hours
10:00 to 16:00when the wind is most often 12 to 35 knots
Daylight
12.2 h
Water
28 °C, boardshorts
Air
27 °Cdaily maximum, 27 °C during kite hours
Rain
4 of 31with 1 mm or more
In one sentence
In October, Guajiru averaged 30 kite days out of 31 (98 %). Water 28 °C, boardshorts. 9 in 10 trips of 10 days starting in October got at least 5 kite days.

Guajiru

Kite days% of days	71	52	36	39	76	92	98	99	100	98	98	91
Verdictshare plus good years	Prime	Good	Possible	Possible	Prime	Prime	Prime	Prime	Prime	Prime	Prime	Prime
10 day tripof 10 trips, 5+ kite days	8 in 10	5 in 10	3 in 10	5 in 10	9 in 10	9 in 10	9 in 10	9 in 10	9 in 10	9 in 10	9 in 10	9 in 10
Good yearsof 9, reached 50 %	7 of 9	6 of 9	1 of 9	2 of 9	9 of 9	9 of 9	9 of 9	9 of 9	9 of 9	9 of 9	9 of 9	9 of 9
Best hourshour of day, most often 12 to 35 kn	10 to 17	10 to 17	11 to 17	12 to 17	11 to 17	10 to 17	10 to 17	10 to 17	10 to 17	10 to 16	10 to 16	10 to 17
Daylighth	12.3	12.2	12.1	12.0	12.0	11.9	12.0	12.0	12.1	12.2	12.3	12.3
Water°C at the surface	29	29	30	30	29	28	28	27	27	28	28	29
Air°C, daily maximum	28	28	28	28	28	28	28	27	27	27	28	28
Rain days1 mm or more	23 of 31	25 of 28	29 of 31	27 of 30	25 of 31	20 of 30	12 of 31	5 of 31	3 of 30	4 of 31	7 of 30	13 of 31
Wetsuitfor that water	boardshorts all year

In January, Guajiru averaged 22 kite days out of 31 (71 %). Water 29 °C, boardshorts. 8 in 10 trips of 10 days starting in January got at least 5 kite days.
In February, Guajiru averaged 14 kite days out of 28 (52 %). Water 29 °C, boardshorts. 5 in 10 trips of 10 days starting in February got at least 5 kite days.
In March, Guajiru averaged 11 kite days out of 31 (36 %). Water 30 °C, boardshorts. 3 in 10 trips of 10 days starting in March got at least 5 kite days.
In April, Guajiru averaged 12 kite days out of 30 (39 %). Water 30 °C, boardshorts. 5 in 10 trips of 10 days starting in April got at least 5 kite days.
In May, Guajiru averaged 24 kite days out of 31 (76 %). Water 29 °C, boardshorts. 9 in 10 trips of 10 days starting in May got at least 5 kite days.
In June, Guajiru averaged 28 kite days out of 30 (92 %). Water 28 °C, boardshorts. 9 in 10 trips of 10 days starting in June got at least 5 kite days.
In July, Guajiru averaged 30 kite days out of 31 (98 %). Water 28 °C, boardshorts. 9 in 10 trips of 10 days starting in July got at least 5 kite days.
In August, Guajiru averaged 30 kite days out of 31 (99 %). Water 27 °C, boardshorts. 9 in 10 trips of 10 days starting in August got at least 5 kite days.
In September, Guajiru averaged 30 kite days out of 30 (100 %). Water 27 °C, boardshorts. 9 in 10 trips of 10 days starting in September got at least 5 kite days.
In October, Guajiru averaged 30 kite days out of 31 (98 %). Water 28 °C, boardshorts. 9 in 10 trips of 10 days starting in October got at least 5 kite days.
In November, Guajiru averaged 29 kite days out of 30 (98 %). Water 28 °C, boardshorts. 9 in 10 trips of 10 days starting in November got at least 5 kite days.
In December, Guajiru averaged 28 kite days out of 31 (91 %). Water 29 °C, boardshorts. 9 in 10 trips of 10 days starting in December got at least 5 kite days.

Good year: at least half the days of that month were kite days. x in 10 reads: of all 10 day trips that started in that month between 2017 and 2025, x in 10 got at least 5 kite days. We cap the figure at 9 in 10 because wind is never a promise. Best hours: the hours from 10:00 on when the wind most often reaches 12 to 35 knots. Rain day: 1 mm or more of rain.

Source: hourly wind from the ECMWF IFS 9 km via Open-Meteo, hourly model, 2017 to 2025; water temperature 2023 to 2025; kiteCOMPASS method v1. How we count kite days and trip odds

October in Guajiru

this month, averaged over 2017 to 2025.

Kite days: 98 % Primeabout 30 of 31 days
Too light, kiteable, too strong: Too light 2 %
Kiteable 98 %
Too strong 0 %
Good years: 9 of 9 years reached 50 % kite days
10 day trip: 9 in 10 trips got at least 5 kite days, about 9.7 expected (capped at 9 in 10)
Best hours: 10:00 to 16:00when the wind is most often 12 to 35 knots
Daylight: 12.2 h
Water: 28 °C, boardshorts
Air: 27 °Cdaily maximum, 27 °C during kite hours
Rain: 4 of 31with 1 mm or more
In one sentence: In October, Guajiru averaged 30 kite days out of 31 (98 %). Water 28 °C, boardshorts. 9 in 10 trips of 10 days starting in October got at least 5 kite days.

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Confidence

Confidence highhourly model data, close sea cell, checks agree on the season

Why. Close model cell, both models agree on the season, 9 full years.

What it means for you. The numbers on this page are a fair forecast of a typical year here. Medium would mean one check is uncertain, for example a cell 12 km away: expect a few points off. Low means global models miss part of the local wind, often at lakes, thermal or inland spots; where documented local sources describe the season, we show that curated season instead of model numbers.

Water and wetsuit

28 °C in October, boardshorts (27 °C and warmer).

boardshorts27 and up
shorty24 to 26
spring suit21 to 23
3/218 to 20
4/314 to 17
5/410 to 13
6/5under 10

The filled step is the suit for October; the band under each step is the water temperature it covers, in °C.

27 to 30 °C, boardshorts.

Where the model is blind

Here the model sees the wind at Guajiru, so the numbers on this page are model numbers. Where documented local sources describe the season of a lake or thermal spot, we show that curated season instead: a hatched band over the season months with its sources named and no percentage, because the model number would be wrong there.

Getting there

Pinto Martins International Airport (FOR), 98 km straight line
Comandante Ariston Pessoa Airport (JJD), 130 km straight line
Parnaíba - Prefeito Doutor João Silva Filho International Airport (PHB), 280 km straight line

Flight time from

FRA Frankfurt: about 9 h 50 min straight line, 7,473 km
MUC Munich: about 9 h 55 min straight line, 7,557 km
AMS Amsterdam: about 9 h 45 min straight line, 7,424 km
LHR London Heathrow: about 9 h 25 min straight line, 7,100 km
ZRH Zurich: about 9 h 40 min straight line, 7,303 km
CDG Paris Charles de Gaulle: about 9 h 20 min straight line, 7,064 km

Flight time: the straight line distance at 800 km/h plus 30 minutes. Real flights with stops take longer. Flights are not sold here.

Best time to kitesurf in Ilha do Guajiru

Best for kiting all year except March and April, with 52 to 100 % kite days. Water 27 to 29 °C.

Season 23 Apr to 4 Mar, peak 30 Apr to 11 Feb. Dates from 52 weekly values of the main spot, season from 40 % kite days, peak from 60 %, counted only in weeks with water or daytime air at 12 °C or more and at least 6 hours of daylight.

Prime months here: January, May, June, July, August, September, October, November, December. Each link shows where else to kite in that month.

Trip odds by start week

Pick your start week and trip length. Each cell: of all trips of that length that started in that week between 2017 and 2025, how many in 10 got at least half their days with kite wind.

Trip odds by start week, 10 day trips, 2017 to 2025

Colours as in the kite year: 6 in 10 and more like Prime · 4 to 5 in 10 like Good · 2 to 3 in 10 like Possible · under 2 in 10 like Off · No data hatched (fewer than 30 trips) · Ringed: this week · Raised: your start week

x in 10 reads: of all 10 day trips that started in that week between 2017 and 2025, x in 10 got at least 5 kite days. We cap the figure at 9 in 10 because wind is never a promise.

Source: hourly wind from the ECMWF IFS model via Open-Meteo, 2017 to 2025, kiteCOMPASS method v1. How we count

Start date

9 in 10

trips of 10 days starting in week 45 (e.g. 5 to 11 November) got at least 5 kite days in 2017 to 2025 (63 trips, capped at 9 in 10).

Zero wind trips: fewer than 1 in 20

about 10.0 kite days expected out of 10

Kite days per trip, 63 trips

Bars right of the line are good trips (5 kite days or more).

Is Ilha do Guajiru windy?

Across the year, 79 % of days at Guajiru are kite days. The windiest month is September with 100 %, the calmest is March with 36 %.

Wind on kite days in September comes most often from E (90°).

Share of kite days by wind direction, 16 sectors

Afternoon wind17 knots(16 to 19 kn, average 12:00 to 18:00 in October)

under 8 kn
8 to 11 kn
12 to 15 kn
16 to 19 kn
20 to 24 kn
25 to 29 kn
30 kn and more

Main kite wind by month: Jan E, Feb E, Mar E, Apr ESE, May ESE, Jun ESE, Jul ESE, Aug E, Sep E, Oct E, Nov E, Dec E.

Live forecast

The numbers above are long term averages. The forecast shows the next days.

Live forecast from Windy

The forecast map for Ilha do Guajiru comes from windy.com (Windyty SE, Prague, Czech Republic) and opens right here on this page. Once you load it, your browser contacts Windy, which receives your IP address and may set its own cookies. Nothing is loaded before you click.

Water temperature in Ilha do Guajiru by month

The sea is warmest in March at 30 °C and coolest in August at 27 °C. Boardshorts all year.

Water temperature from the Open-Meteo marine archive, 2023 to 2025, monthly mean of the main spot.

Kite spots in Ilha do Guajiru

Guajiru
Sea · main spot
Level Good for learning, from kite guides we checked
1. J
2. F
3. M
4. A
5. M
6. J
7. J
8. A
9. S
10. O
11. N
12. D
Kite days by month at Guajiru: Jan 71 %, Feb 52 %, Mar 36 %, Apr 39 %, May 76 %, Jun 92 %, Jul 98 %, Aug 99 %, Sep 100 %, Oct 98 %, Nov 98 %, Dec 91 %
Fleixeiras
Sea · 4 km
1. J
2. F
3. M
4. A
5. M
6. J
7. J
8. A
9. S
10. O
11. N
12. D
Kite days by month at Fleixeiras: Jan 58 %, Feb 41 %, Mar 16 %, Apr 24 %, May 55 %, Jun 80 %, Jul 88 %, Aug 98 %, Sep 100 %, Oct 96 %, Nov 96 %, Dec 88 %
Embuaca
Sea · 9 km
1. J
2. F
3. M
4. A
5. M
6. J
7. J
8. A
9. S
10. O
11. N
12. D
Kite days by month at Embuaca: Jan 58 %, Feb 41 %, Mar 16 %, Apr 24 %, May 55 %, Jun 80 %, Jul 88 %, Aug 98 %, Sep 100 %, Oct 96 %, Nov 96 %, Dec 88 %
Mundau
Sea · 15 km
Level Learning possible in parts, from kite guides we checked
1. J
2. F
3. M
4. A
5. M
6. J
7. J
8. A
9. S
10. O
11. N
12. D
Kite days by month at Mundau: Jan 73 %, Feb 57 %, Mar 41 %, Apr 45 %, May 79 %, Jun 95 %, Jul 98 %, Aug 99 %, Sep 100 %, Oct 98 %, Nov 98 %, Dec 93 %

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kiteCOMPASS · method k3h-10to19-v1 · 2017 to 2025

Model wind: ECMWF IFS 9 km via Open-Meteo, hourly, 2017 to 2025. Water temperature: 2023 to 2025. Kite day: at least 3 hours of 12 to 35 kn model wind between 10:00 and 19:00 in daylight, with gusts up to 45 kn. Confidence: high.

Cite this

In October, 98 % of days at Guajiru met the kiteCOMPASS kite day rule: at least 3 hours of 12 to 35 kn model wind between 10:00 and 19:00 in daylight, with gusts up to 45 kn (ECMWF IFS 9 km via Open-Meteo, hourly, 2017 to 2025). https://kitecompass.app/kitesurfing/ilha-do-guajiru

Download CSV (12 months)

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