Country Background
HistoryAQIPM₂.₅PM₁₀

Tamarindo, Guanacaste Province, Costa Rica Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

August Air Quality Analysis

Tamarindo, Guanacaste Province, Costa Rica

2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
14th Aug 2026
41AQI
Lowest AQI recorded on
6th Aug 2026
18AQI

Same Day Analysis (17th August):
On this day, AQI across the 1 years varied significantly: 2026 ranks 1st highest AQI at 27 of Good air quality on the same day.

2026 Days Vs Air Quality

Tamarindo, Guanacaste Province, Costa Rica

2026

92%

207

8%

17

0.8%

2

Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)

Good
207 Days
Moderate
17 Days
Poor
0 Days
Unhealthy
2 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 92%

Health Risk Level:

Very Low

In 2026, 92% of 230 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Tamarindo, Guanacaste Province, Costa Rica

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
32AQI (US)
2nd January 2026
24AQI (US)
3rd January 2026
51AQI (US)
4th January 2026
196AQI (US)
5th January 2026
26AQI (US)
6th January 2026
49AQI (US)
7th January 2026
26AQI (US)
8th January 2026
25AQI (US)
9th January 2026
18AQI (US)
10th January 2026
27AQI (US)
11th January 2026
19AQI (US)
12th January 2026
22AQI (US)
13th January 2026
15AQI (US)
14th January 2026
15AQI (US)
15th January 2026
18AQI (US)
16th January 2026
18AQI (US)
17th January 2026
24AQI (US)
18th January 2026
28AQI (US)
19th January 2026
12AQI (US)
20th January 2026
18AQI (US)
21st January 2026
27AQI (US)
22nd January 2026
27AQI (US)
23rd January 2026
17AQI (US)
24th January 2026
18AQI (US)
25th January 2026
16AQI (US)
26th January 2026
32AQI (US)
27th January 2026
17AQI (US)
28th January 2026
21AQI (US)
29th January 2026
19AQI (US)
30th January 2026
19AQI (US)
31st January 2026
31AQI (US)
1st February 2026
34AQI (US)
2nd February 2026
21AQI (US)
3rd February 2026
25AQI (US)
4th February 2026
21AQI (US)
5th February 2026
38AQI (US)
6th February 2026
36AQI (US)
7th February 2026
39AQI (US)
8th February 2026
38AQI (US)
9th February 2026
26AQI (US)
10th February 2026
30AQI (US)
11th February 2026
21AQI (US)
12th February 2026
28AQI (US)
13th February 2026
17AQI (US)
14th February 2026
33AQI (US)
15th February 2026
24AQI (US)
16th February 2026
39AQI (US)
17th February 2026
40AQI (US)
18th February 2026
35AQI (US)
19th February 2026
41AQI (US)
20th February 2026
38AQI (US)
21st February 2026
42AQI (US)
22nd February 2026
47AQI (US)
23rd February 2026
29AQI (US)
24th February 2026
44AQI (US)
25th February 2026
38AQI (US)
26th February 2026
36AQI (US)
27th February 2026
48AQI (US)
28th February 2026
56AQI (US)
1st March 2026
60AQI (US)
2nd March 2026
49AQI (US)
3rd March 2026
36AQI (US)
4th March 2026
33AQI (US)
5th March 2026
32AQI (US)
6th March 2026
33AQI (US)
7th March 2026
29AQI (US)
8th March 2026
41AQI (US)
9th March 2026
44AQI (US)
10th March 2026
53AQI (US)
11th March 2026
40AQI (US)
12th March 2026
48AQI (US)
13th March 2026
31AQI (US)
14th March 2026
26AQI (US)
15th March 2026
34AQI (US)
16th March 2026
51AQI (US)
17th March 2026
56AQI (US)
18th March 2026
48AQI (US)
19th March 2026
41AQI (US)
20th March 2026
46AQI (US)
21st March 2026
53AQI (US)
22nd March 2026
58AQI (US)
23rd March 2026
66AQI (US)
24th March 2026
40AQI (US)
25th March 2026
65AQI (US)
26th March 2026
48AQI (US)
27th March 2026
43AQI (US)
28th March 2026
31AQI (US)
29th March 2026
35AQI (US)
30th March 2026
29AQI (US)
31st March 2026
34AQI (US)
1st April 2026
27AQI (US)
2nd April 2026
24AQI (US)
3rd April 2026
20AQI (US)
4th April 2026
22AQI (US)
5th April 2026
21AQI (US)
6th April 2026
28AQI (US)
7th April 2026
28AQI (US)
8th April 2026
44AQI (US)
9th April 2026
40AQI (US)
10th April 2026
41AQI (US)
11th April 2026
38AQI (US)
12th April 2026
35AQI (US)
13th April 2026
31AQI (US)
14th April 2026
39AQI (US)
15th April 2026
29AQI (US)
16th April 2026
20AQI (US)
17th April 2026
18th April 2026
31AQI (US)
19th April 2026
62AQI (US)
20th April 2026
48AQI (US)
21st April 2026
38AQI (US)
22nd April 2026
23rd April 2026
34AQI (US)
24th April 2026
38AQI (US)
25th April 2026
30AQI (US)
26th April 2026
46AQI (US)
27th April 2026
66AQI (US)
28th April 2026
59AQI (US)
29th April 2026
40AQI (US)
30th April 2026
29AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
38AQI (US)
3rd May 2026
38AQI (US)
4th May 2026
41AQI (US)
5th May 2026
34AQI (US)
6th May 2026
36AQI (US)
7th May 2026
53AQI (US)
8th May 2026
52AQI (US)
9th May 2026
10th May 2026
48AQI (US)
11th May 2026
45AQI (US)
12th May 2026
45AQI (US)
13th May 2026
39AQI (US)
14th May 2026
40AQI (US)
15th May 2026
43AQI (US)
16th May 2026
39AQI (US)
17th May 2026
33AQI (US)
18th May 2026
32AQI (US)
19th May 2026
30AQI (US)
20th May 2026
31AQI (US)
21st May 2026
33AQI (US)
22nd May 2026
35AQI (US)
23rd May 2026
40AQI (US)
24th May 2026
30AQI (US)
25th May 2026
22AQI (US)
26th May 2026
26AQI (US)
27th May 2026
30AQI (US)
28th May 2026
37AQI (US)
29th May 2026
72AQI (US)
30th May 2026
156AQI (US)
31st May 2026
56AQI (US)
1st June 2026
34AQI (US)
2nd June 2026
26AQI (US)
3rd June 2026
26AQI (US)
4th June 2026
25AQI (US)
5th June 2026
23AQI (US)
6th June 2026
14AQI (US)
7th June 2026
20AQI (US)
8th June 2026
40AQI (US)
9th June 2026
39AQI (US)
10th June 2026
23AQI (US)
11th June 2026
18AQI (US)
12th June 2026
33AQI (US)
13th June 2026
35AQI (US)
14th June 2026
32AQI (US)
15th June 2026
36AQI (US)
16th June 2026
29AQI (US)
17th June 2026
30AQI (US)
18th June 2026
37AQI (US)
19th June 2026
28AQI (US)
20th June 2026
27AQI (US)
21st June 2026
29AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
20AQI (US)
24th June 2026
32AQI (US)
25th June 2026
27AQI (US)
26th June 2026
23AQI (US)
27th June 2026
40AQI (US)
28th June 2026
45AQI (US)
29th June 2026
32AQI (US)
30th June 2026
26AQI (US)
1st July 2026
28AQI (US)
2nd July 2026
22AQI (US)
3rd July 2026
32AQI (US)
4th July 2026
12AQI (US)
5th July 2026
20AQI (US)
6th July 2026
31AQI (US)
7th July 2026
30AQI (US)
8th July 2026
22AQI (US)
9th July 2026
19AQI (US)
10th July 2026
23AQI (US)
11th July 2026
35AQI (US)
12th July 2026
23AQI (US)
13th July 2026
22AQI (US)
14th July 2026
16AQI (US)
15th July 2026
27AQI (US)
16th July 2026
33AQI (US)
17th July 2026
41AQI (US)
18th July 2026
31AQI (US)
19th July 2026
27AQI (US)
20th July 2026
35AQI (US)
21st July 2026
20AQI (US)
22nd July 2026
18AQI (US)
23rd July 2026
40AQI (US)
24th July 2026
44AQI (US)
25th July 2026
27AQI (US)
26th July 2026
32AQI (US)
27th July 2026
34AQI (US)
28th July 2026
32AQI (US)
29th July 2026
23AQI (US)
30th July 2026
23AQI (US)
31st July 2026
26AQI (US)
1st August 2026
32AQI (US)
2nd August 2026
25AQI (US)
3rd August 2026
25AQI (US)
4th August 2026
36AQI (US)
5th August 2026
21AQI (US)
6th August 2026
18AQI (US)
7th August 2026
21AQI (US)
8th August 2026
27AQI (US)
9th August 2026
38AQI (US)
10th August 2026
29AQI (US)
11th August 2026
24AQI (US)
12th August 2026
32AQI (US)
13th August 2026
35AQI (US)
14th August 2026
41AQI (US)
15th August 2026
38AQI (US)
16th August 2026
35AQI (US)
17th August 2026
27AQI (US)
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

29AQI (US)

34AQI (US)

43AQI (US)

36AQI (US)

43AQI (US)

29AQI (US)

27AQI (US)

30AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202634AQI (US)

29
1
1
27
1
23
8
25
3
25
4
1
30
31
17
207
17
2

Highest AQI (US) recorded in

March

43AQI (US)

Lowest AQI (US) recorded in

July

27AQI (US)

202519AQI (US)

24
30
31
85

Highest AQI (US) recorded in

October

20AQI (US)

Lowest AQI (US) recorded in

December

18AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2026(Avg.)
34AQI (US)
Least Polluted Year Recorded
2025(Avg.)
19AQI (US)

Tamarindo's annual 2026 AQI (US) (34) shows an average percentage change of 78.9% (worsened AQI (US)) compared to previous years: 2025 (19).