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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Weather Records by Month: Costa Rica

Record highs in Costa Rica were most often set in July and record lows in November, with the count by month and record type for all years and for 1996 to 2025.

Data as of . Last revised (2026-10-17).

Key Facts

  • July had the most record highs in Costa Rica in all years: 64 of 615 (10.4%).
  • November had the most record lows in Costa Rica in all years: 42 of 250 (16.8%).
  • July had the most record highs in Costa Rica in 1996 to 2025: 64 of 615 (10.4%).
  • November had the most record lows in Costa Rica in 1996 to 2025: 42 of 250 (16.8%).
  • Counts are daily maximum and daily minimum temperature records combined, and are not adjusted for the different lengths of the months.

All Years

Records by month and type
Daily temperature records by month and type, all years, Costa Rica Count of daily temperature records in Costa Rica by calendar month and record type, all years. All years: record highs peak in July and record lows in November. Darker cells are the larger counts within a record type. JanFebMarAprMayJunJulAugSepOctNovDec high maximum temperature Record high maximum temperature, Jan: 21 21 Record high maximum temperature, Feb: 26 26 Record high maximum temperature, Mar: 23 23 Record high maximum temperature, Apr: 28 28 Record high maximum temperature, May: 15 15 Record high maximum temperature, Jun: 12 12 Record high maximum temperature, Jul: 37 37 Record high maximum temperature, Aug: 30 30 Record high maximum temperature, Sep: 15 15 Record high maximum temperature, Oct: 24 24 Record high maximum temperature, Nov: 18 18 Record high maximum temperature, Dec: 23 23 low maximum temperature Record low maximum temperature, Jan: 14 14 Record low maximum temperature, Feb: 6 6 Record low maximum temperature, Mar: 8 8 Record low maximum temperature, Apr: 12 12 Record low maximum temperature, May: 17 17 Record low maximum temperature, Jun: 7 7 Record low maximum temperature, Jul: 6 6 Record low maximum temperature, Aug: 10 10 Record low maximum temperature, Sep: 3 3 Record low maximum temperature, Oct: 9 9 Record low maximum temperature, Nov: 24 24 Record low maximum temperature, Dec: 15 15 high minimum temperature Record high minimum temperature, Jan: 31 31 Record high minimum temperature, Feb: 27 27 Record high minimum temperature, Mar: 26 26 Record high minimum temperature, Apr: 29 29 Record high minimum temperature, May: 26 26 Record high minimum temperature, Jun: 37 37 Record high minimum temperature, Jul: 27 27 Record high minimum temperature, Aug: 30 30 Record high minimum temperature, Sep: 29 29 Record high minimum temperature, Oct: 28 28 Record high minimum temperature, Nov: 21 21 Record high minimum temperature, Dec: 32 32 low minimum temperature Record low minimum temperature, Jan: 9 9 Record low minimum temperature, Feb: 9 9 Record low minimum temperature, Mar: 6 6 Record low minimum temperature, Apr: 10 10 Record low minimum temperature, May: 14 14 Record low minimum temperature, Jun: 6 6 Record low minimum temperature, Jul: 9 9 Record low minimum temperature, Aug: 4 4 Record low minimum temperature, Sep: 14 14 Record low minimum temperature, Oct: 8 8 Record low minimum temperature, Nov: 18 18 Record low minimum temperature, Dec: 12 12
Count of daily temperature records in Costa Rica by calendar month and record type, all years. All years: record highs peak in July and record lows in November. Darker cells are the larger counts within a record type.
Daily temperature records by month and type, all years, Costa Rica
Record typeJanFebMarAprMayJunJulAugSepOctNovDecTotal
Record high maximum temperature212623281512373015241823272
Record low maximum temperature146812177610392415131
Record high minimum temperature312726292637273029282132343
Record low minimum temperature99610146941481812119

Latest 30 Years

1996 to 2025
Daily temperature records by month and type, 1996 to 2025, Costa Rica Count of daily temperature records in Costa Rica by calendar month and record type, 1996 to 2025. 1996 to 2025: record highs peak in July and record lows in November. Darker cells are the larger counts within a record type. JanFebMarAprMayJunJulAugSepOctNovDec high maximum temperature Record high maximum temperature, Jan: 21 21 Record high maximum temperature, Feb: 26 26 Record high maximum temperature, Mar: 23 23 Record high maximum temperature, Apr: 28 28 Record high maximum temperature, May: 15 15 Record high maximum temperature, Jun: 12 12 Record high maximum temperature, Jul: 37 37 Record high maximum temperature, Aug: 30 30 Record high maximum temperature, Sep: 15 15 Record high maximum temperature, Oct: 24 24 Record high maximum temperature, Nov: 18 18 Record high maximum temperature, Dec: 23 23 low maximum temperature Record low maximum temperature, Jan: 14 14 Record low maximum temperature, Feb: 6 6 Record low maximum temperature, Mar: 8 8 Record low maximum temperature, Apr: 12 12 Record low maximum temperature, May: 17 17 Record low maximum temperature, Jun: 7 7 Record low maximum temperature, Jul: 6 6 Record low maximum temperature, Aug: 10 10 Record low maximum temperature, Sep: 3 3 Record low maximum temperature, Oct: 9 9 Record low maximum temperature, Nov: 24 24 Record low maximum temperature, Dec: 15 15 high minimum temperature Record high minimum temperature, Jan: 31 31 Record high minimum temperature, Feb: 27 27 Record high minimum temperature, Mar: 26 26 Record high minimum temperature, Apr: 29 29 Record high minimum temperature, May: 26 26 Record high minimum temperature, Jun: 37 37 Record high minimum temperature, Jul: 27 27 Record high minimum temperature, Aug: 30 30 Record high minimum temperature, Sep: 29 29 Record high minimum temperature, Oct: 28 28 Record high minimum temperature, Nov: 21 21 Record high minimum temperature, Dec: 32 32 low minimum temperature Record low minimum temperature, Jan: 9 9 Record low minimum temperature, Feb: 9 9 Record low minimum temperature, Mar: 6 6 Record low minimum temperature, Apr: 10 10 Record low minimum temperature, May: 14 14 Record low minimum temperature, Jun: 6 6 Record low minimum temperature, Jul: 9 9 Record low minimum temperature, Aug: 4 4 Record low minimum temperature, Sep: 14 14 Record low minimum temperature, Oct: 8 8 Record low minimum temperature, Nov: 18 18 Record low minimum temperature, Dec: 12 12
Count of daily temperature records in Costa Rica by calendar month and record type, 1996 to 2025. 1996 to 2025: record highs peak in July and record lows in November. Darker cells are the larger counts within a record type.
Daily temperature records by month and type, 1996 to 2025, Costa Rica
Record typeJanFebMarAprMayJunJulAugSepOctNovDecTotal
Record high maximum temperature212623281512373015241823272
Record low maximum temperature146812177610392415131
Record high minimum temperature312726292637273029282132343
Record low minimum temperature99610146941481812119

Highs and Lows by Month

Record highs and record lows by calendar month, all years and 1996 to 2025, Costa Rica
MonthHighs, all yearsLows, all yearsHighs, 1996 to 2025Lows, 1996 to 2025
January52235223
February53155315
March49144914
April57225722
May41314131
June49134913
July64156415
August60146014
September44174417
October52175217
November39423942
December55275527

What the Counts Mean

Each count is a daily temperature record in that calendar month: a daily maximum or daily minimum that went past the earlier record at that station for the same day of the year. Record highs combine the daily maximum and the daily minimum.

Months differ in length, so a month with more days has more chances for a record. The counts are not adjusted for that. The latest 30 years are 1996 to 2025. The two spans come from different numbers of stations and years, so compare the shape across months and not the totals.

Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17. Records are computed by this site from daily maximum and minimum temperature.